Additional tests for should_retransmit_and_persist (#6062) (#6070)

automerge

.appveyor.yml

@@ -0,0 +1,42 @@
+version: '{build}'
+
+branches:
+  only:
+  - master
+  - /^v[0-9.]+\.[0-9.]+/
+
+cache:
+  - '%USERPROFILE%\.cargo'
+  - '%APPVEYOR_BUILD_FOLDER%\target'
+
+clone_folder: d:\projects\solana
+
+build_script:
+  - bash ci/publish-tarball.sh
+
+notifications:
+  - provider: Slack
+    incoming_webhook:
+      secure: GJsBey+F5apAtUm86MHVJ68Uqa6WN1SImcuIc4TsTZrDhA8K1QWUNw9FFQPybUWDyOcS5dly3kubnUqlGt9ux6Ad2efsfRIQYWv0tOVXKeY=
+    channel: ci-status
+    on_build_success: false
+    on_build_failure: true
+    on_build_status_changed: true
+
+deploy:
+  - provider: S3
+    access_key_id:
+      secure: fTbJl6JpFebR40J7cOWZ2mXBa3kIvEiXgzxAj6L3N7A=
+    secret_access_key:
+      secure: vItsBXb2rEFLvkWtVn/Rcxu5a5+2EwC+b7GsA0waJy9hXh6XuBAD0lnHd9re3g/4
+    bucket: release.solana.com
+    region: us-west-1
+    set_public: true
+
+  - provider: GitHub
+    auth_token:
+      secure: 81fEmPZ0cV1wLtNuUrcmtgxKF6ROQF1+/ft5m+fHX21z6PoeCbaNo8cTyLioWBj7
+    draft: false
+    prerelease: false
+    on:
+      appveyor_repo_tag: true

.buildkite/env/.gitignore

@@ -0,0 +1 @@
+/secrets_unencrypted.ejson

.buildkite/env/README.md

@@ -0,0 +1,31 @@
+
+[ejson](https://github.com/Shopify/ejson) and
+[ejson2env](https://github.com/Shopify/ejson2env) are used to manage access
+tokens and other secrets required for CI.
+
+#### Setup
+```bash
+$ sudo gem install ejson ejson2env
+```
+
+then obtain the necessary keypair and place it in `/opt/ejson/keys/`.
+
+#### Usage
+Run the following command to decrypt the secrets into the environment:
+```bash
+eval $(ejson2env secrets.ejson)
+```
+
+#### Managing secrets.ejson
+To decrypt `secrets.ejson` for modification, run:
+```bash
+$ ejson decrypt secrets.ejson -o secrets_unencrypted.ejson
+```
+
+Edit, then run the following to re-encrypt the file **BEFORE COMMITING YOUR
+CHANGES**:
+```bash
+$ ejson encrypt secrets_unencrypted.ejson
+$ mv secrets_unencrypted.ejson secrets.ejson
+```
+

.buildkite/env/secrets.ejson

@@ -0,0 +1,14 @@
+{
+    "_public_key": "ae29f4f7ad2fc92de70d470e411c8426d5d48db8817c9e3dae574b122192335f",
+    "environment": {
+      "CODECOV_TOKEN": "EJ[1:8iZ6baJB4fbBV+XDsrUooyGAnGL/8Ol+4Qd0zKh5YjI=:ks2/ElgxwgxqgmFcxTHANNLmj23YH74h:U4uzRONRfiQyqy6HrPQ/e7OnBUY4HkW37R0iekkF3KJ9UGnHqT1UvwgVbDqLahtDIJ4rWw==]",
+      "CRATES_IO_TOKEN": "EJ[1:8iZ6baJB4fbBV+XDsrUooyGAnGL/8Ol+4Qd0zKh5YjI=:lKMh3aLW+jyRrfS/c7yvkpB+TaPhXqLq:j0v27EbaPgwRdHZAbsM0FlAnt3r9ScQrFbWJYOAZtM3qestEiByTlKpZ0eyF/823]",
+      "GITHUB_TOKEN": "EJ[1:8iZ6baJB4fbBV+XDsrUooyGAnGL/8Ol+4Qd0zKh5YjI=:Ll78c3jGpYqnTwR7HJq3mNNUC7pOv9Lu:GrInO2r8MjmP5c54szkyygdsrW5KQYkDgJQUVyFEPyG8SWfchyM9Gur8RV0a+cdwuxNkHLi4U2M=]",
+      "INFLUX_DATABASE": "EJ[1:8iZ6baJB4fbBV+XDsrUooyGAnGL/8Ol+4Qd0zKh5YjI=:IlH/ZLTXv3SwlY3TVyAPCX2KzLRY6iG3:gGmUGSU/kCfR/mTwKONaUC/X]",
+      "INFLUX_PASSWORD": "EJ[1:8iZ6baJB4fbBV+XDsrUooyGAnGL/8Ol+4Qd0zKh5YjI=:o2qm95GU4VrrcC4OU06jjPvCwKZy/CZF:OW2ga3kLOQJvaDEdGRJ+gn3L2ckFm8AJZtv9wj/GeUIKDH2A4uBPTHsAH9PMe6zujpuHGk3qbeg=]",
+      "INFLUX_USERNAME": "EJ[1:8iZ6baJB4fbBV+XDsrUooyGAnGL/8Ol+4Qd0zKh5YjI=:yDWW/uIHsJqOTDYskZoSx3pzoB1vztWY:2z31oTA3g0Xs9fCczGNJRcx8xf/hFCed]",
+      "SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_unknown_linux_gnu": "EJ[1:8iZ6baJB4fbBV+XDsrUooyGAnGL/8Ol+4Qd0zKh5YjI=:RqRaHlYUvGPNFJa6gmciaYM3tRJTURUH:q78/3GTHCN3Uqx9z4nOBjPZcO1lOazNoB/mdhGRDFsnAqVd2hU8zbKkqLrZfLlGqyD8WQOFuw5oTJR9qWg6L9LcOyj3pGL8jWF2yjgZxdtNMXnkbSrCWLooWBBLT61jYQnEwg73gT8ld3Q8EVv3T+MeSMu6FnPz+0+bqQCAGgfqksP4hsUAJGzgZu+i0tNOdlT7fxnh5KJK/yFM/CKgN2sRwEjukA9hXsffyB61g2zqzTDJxCUDLbCVrCkA/bfUk7Of/t0W5t0nK1H3oyGZEc/lRMauCknDBka3Gz11dVss2QT19WQNh0u7bHVaT/U4lepX1j9Zv]",
+      "SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_apple_darwin": "EJ[1:8iZ6baJB4fbBV+XDsrUooyGAnGL/8Ol+4Qd0zKh5YjI=:wFDl3INEnA3EQDHRX40avqGe1OMoJxyy:6ncCRVRTIRuYI5o/gayeuWCudWvmKNYr8KEHAWeTq34a5bdcKInBdKhjmjX+wLHqsEwQ5gcyhcxy4Ri2mbuN6AHazfZOZlubQkGlyUOAIYO5D5jkbyIh40DAtjVzo1MD/0HsW9zdGOzqUKp5xJJeDsbR4F153jbxa7fvwF90Q4UQjYFTKAtExEmHtDGSJG48ToVwTabTV/OnISMIggDZBviIv2QWHvXgK07b2mUj34rHJywEDGN1nj5rITTDdUeRcB1x4BAMOe94kTFPSTaj/OszvYlGECt8rkKFqbm092qL+XLfiBaImqe/WJHRCnAj6Don]",
+      "SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_pc_windows_msvc": "EJ[1:8iZ6baJB4fbBV+XDsrUooyGAnGL/8Ol+4Qd0zKh5YjI=:wAh+dBuZopv6vruVOYegUcq/aBnbksT1:qIJfCfDvDWiqicMOkmbJs/0n7UJLKNmgMQaKzeQ8J7Q60YpXbtWzKVW3tS6lzlgf64m3MrPXyo1C+mWh6jkjsb18T/OfggZy1ZHM4AcsOC6/ldUkV5YtuxUQuAmd5jCuV/R7iuYY8Z66AcfAevlb+bnLpgIifdA8fh/IktOo58nZUQwZDdppAacmftsLc6Frn5Er6A6+EXpxK1nmnlmLJ4AJztqlh6X0r+JvE2O7qeoZUXrIegnkxo7Aay7I/dd8zdYpp7ICSiTEtfVN/xNIu/5QmTRU7gWoz7cPl9epq4aiEALzPOzb6KVOiRcsOg+TlFvLQ71Ik5o=]"
+    }
+}

.buildkite/hooks/post-checkout

@@ -1,2 +1,42 @@
 CI_BUILD_START=$(date +%s)
 export CI_BUILD_START
+
+source ci/env.sh
+
+#
+# Kill any running docker containers, which are potentially left over from the
+# previous CI job
+#
+(
+  containers=$(docker ps -q)
+  if [[ $(hostname) != metrics-solana-com && -n $containers ]]; then
+    echo "+++ Killing stale docker containers"
+    docker ps
+
+    # shellcheck disable=SC2086 # Don't want to double quote $containers
+    docker kill $containers
+  fi
+)
+
+# Processes from previously aborted CI jobs seem to loiter, unclear why as one
+# would expect the buildkite-agent to clean up all child processes of the
+# aborted CI job.
+# But as a workaround for now manually kill some known loiterers.  These
+# processes will all have the `init` process as their PPID:
+(
+  victims=
+  for name in bash cargo docker solana; do
+    victims="$victims $(pgrep -u "$(id -u)" -P 1 -d \  $name)"
+  done
+  for victim in $victims; do
+    echo "Killing pid $victim"
+    kill -9 "$victim" || true
+  done
+)
+
+# HACK: These are in our docker images, need to be removed from CARGO_HOME
+#  because we try to cache downloads across builds with CARGO_HOME
+# cargo lacks a facility for "system" tooling, always tries CARGO_HOME first
+cargo uninstall cargo-audit || true
+cargo uninstall svgbob_cli || true
+cargo uninstall mdbook || true

.buildkite/hooks/post-command

@@ -3,15 +3,16 @@
 #
 # Save target/ for the next CI build on this machine
 #
-if [[ -n $CARGO_TARGET_CACHE_NAME ]]; then
-  (
-    d=$HOME/cargo-target-cache/"$CARGO_TARGET_CACHE_NAME"
-    mkdir -p "$d"
-    set -x
-    rsync -a --delete --link-dest="$PWD" target "$d"
-    du -hs "$d"
-  )
-fi
+(
+  set -x
+  d=$HOME/cargo-target-cache/"$BUILDKITE_LABEL"
+  mkdir -p "$d"
+  set -x
+  rsync -a --delete --link-dest="$PWD" target "$d"
+  du -hs "$d"
+  read -r cacheSizeInGB _ < <(du -s --block-size=1800000000 "$d")
+  echo "--- ${cacheSizeInGB}GB: $d"
+)
 
 #
 # Add job_stats data point

.buildkite/hooks/pre-command

@@ -1,4 +1,7 @@
-#!/bin/bash -e
+#!/usr/bin/env bash
+set -e
+
+eval "$(ejson2env .buildkite/env/secrets.ejson)"
 
 # Ensure the pattern "+++ ..." never occurs when |set -x| is set, as buildkite
 # interprets this as the start of a log group.
@@ -8,20 +11,23 @@ export PS4="++"
 #
 # Restore target/ from the previous CI build on this machine
 #
-[[ -n "$CARGO_TARGET_CACHE_NAME" ]] || (
-  d=$HOME/cargo-target-cache/"$CARGO_TARGET_CACHE_NAME"
+(
+  set -x
+  d=$HOME/cargo-target-cache/"$BUILDKITE_LABEL"
+  MAX_CACHE_SIZE=18 # gigabytes
 
   if [[ -d $d ]]; then
     du -hs "$d"
-    read -r cacheSizeInGB _ < <(du -s --block-size=1000000000 "$d")
-    if [[ $cacheSizeInGB -gt 5 ]]; then
-      echo "$d has gotten too large, removing it"
+    read -r cacheSizeInGB _ < <(du -s --block-size=1800000000 "$d")
+    echo "--- ${cacheSizeInGB}GB: $d"
+    if [[ $cacheSizeInGB -gt $MAX_CACHE_SIZE ]]; then
+      echo "--- $d is too large, removing it"
       rm -rf "$d"
     fi
+  else
+    echo "--- $d not present"
   fi
 
   mkdir -p "$d"/target
-  set -x
   rsync -a --delete --link-dest="$d" "$d"/target .
 )
-

.buildkite/pipeline-upload.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+#
+# This script is used to upload the full buildkite pipeline. The steps defined
+# in the buildkite UI should simply be:
+#
+#   steps:
+#    - command: ".buildkite/pipeline-upload.sh"
+#
+
+set -e
+cd "$(dirname "$0")"/..
+
+if [[ -n $BUILDKITE_TAG ]]; then
+  buildkite-agent annotate --style info --context release-tag \
+    "https://github.com/solana-labs/solana/releases/$BUILDKITE_TAG"
+  buildkite-agent pipeline upload ci/buildkite-release.yml
+else
+  if [[ $BUILDKITE_BRANCH =~ ^pull ]]; then
+    # Add helpful link back to the corresponding Github Pull Request
+    buildkite-agent annotate --style info --context pr-backlink \
+      "Github Pull Request: https://github.com/solana-labs/solana/$BUILDKITE_BRANCH"
+  fi
+
+  if [[ $BUILDKITE_MESSAGE =~ GitBook: ]]; then
+    buildkite-agent annotate --style info --context gitbook-ci-skip \
+      "GitBook commit detected, CI skipped"
+    exit
+  fi
+
+  buildkite-agent pipeline upload ci/buildkite.yml
+fi

.codecov.yml

@@ -1,5 +1,12 @@
-ignore:
-  - "src/bin" 
 coverage:
+  range: 50..100
+  round: down
+  precision: 1
   status:
+    project: off
     patch: off
+
+comment:
+  layout: "diff"
+  behavior: default
+  require_changes: no

.gitbook.yaml

@@ -0,0 +1,5 @@
+root: ./book/src
+
+structure:
+    readme: introduction.md
+    summary: SUMMARY.md

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,6 @@
+#### Problem
+
+
+
+#### Proposed Solution
+

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,5 @@
+#### Problem
+
+#### Summary of Changes
+
+Fixes #

.github/stale.yml

@@ -0,0 +1,24 @@
+only: pulls
+
+# Number of days of inactivity before a pull request becomes stale
+daysUntilStale: 30
+
+# Number of days of inactivity before a stale pull request is closed
+daysUntilClose: 7
+
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - security
+
+# Label to use when marking a pull request as stale
+staleLabel: stale
+
+# Comment to post when marking a pull request as stale. Set to `false` to disable
+markComment: >
+  This pull request has been automatically marked as stale because it has not had
+  recent activity. It will be closed if no further activity occurs.
+
+# Comment to post when closing a stale pull request. Set to `false` to disable
+closeComment: >
+  This stale pull request has been automatically closed.
+  Thank you for your contributions.

.gitignore

@@ -1,16 +1,22 @@
-Cargo.lock
+/book/html/
+/book/src/tests.ok
+/farf/
+/solana-release/
+/solana-release.tar.bz2
+/solana-metrics/
+/solana-metrics.tar.bz2
 /target/
 
 **/*.rs.bk
 .cargo
 
-# node configuration files
 /config/
-/config-private/
-/config-drone/
-/config-validator/
-/config-client/
-/multinode-demo/test/config-client/
 
-# test temp files, ledgers, etc.
-/farf/
+# log files
+*.log
+log-*.txt
+
+# intellij files
+/.idea/
+/solana.iml
+/.vscode/

.mergify.yml

@@ -0,0 +1,77 @@
+# Validate your changes with:
+#
+#   $ curl -F 'data=@.mergify.yml' https://gh.mergify.io/validate
+#
+# https://doc.mergify.io/
+pull_request_rules:
+  - name: remove outdated reviews
+    conditions:
+      - base=master
+    actions:
+      dismiss_reviews:
+        changes_requested: true
+  - name: set automerge label on mergify backport PRs
+    conditions:
+      - author=mergify[bot]
+      - head~=^mergify/bp/
+      - "#status-failure=0"
+    actions:
+      label:
+        add:
+          - automerge
+  - name: v0.16 backport
+    conditions:
+      - base=master
+      - label=v0.16
+    actions:
+      backport:
+        branches:
+          - v0.16
+  - name: v0.17 backport
+    conditions:
+      - base=master
+      - label=v0.17
+    actions:
+      backport:
+        branches:
+          - v0.17
+  - name: v0.18 backport
+    conditions:
+      - base=master
+      - label=v0.18
+    actions:
+      backport:
+        branches:
+          - v0.18
+  - name: v0.19 backport
+    conditions:
+      - base=master
+      - label=v0.19
+    actions:
+      backport:
+        branches:
+          - v0.19
+  - name: v0.20 backport
+    conditions:
+      - base=master
+      - label=v0.20
+    actions:
+      backport:
+        branches:
+          - v0.20
+  - name: v0.21 backport
+    conditions:
+      - base=master
+      - label=v0.21
+    actions:
+      backport:
+        branches:
+          - v0.21
+  - name: v0.22 backport
+    conditions:
+      - base=master
+      - label=v0.22
+    actions:
+      backport:
+        branches:
+          - v0.22

.travis.yml

@@ -0,0 +1,43 @@
+os:
+  - osx
+
+language: rust
+rust:
+  - 1.37.0
+
+install:
+  - source ci/rust-version.sh
+  - test $rust_stable = $TRAVIS_RUST_VERSION # Update .travis.yml rust version above when this fails
+
+script:
+  - source ci/env.sh
+  - ci/publish-tarball.sh
+
+branches:
+  only:
+    - master
+    - /^v\d+\.\d+$/
+
+notifications:
+  slack:
+    on_success: change
+    secure: 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
+
+deploy:
+  - provider: s3
+    access_key_id: $AWS_ACCESS_KEY_ID
+    secret_access_key: $AWS_SECRET_ACCESS_KEY
+    bucket: release.solana.com
+    region: us-west-1
+    skip_cleanup: true
+    acl: public_read
+    local_dir: travis-s3-upload
+    on:
+      all_branches: true
+  - provider: releases
+    api_key: $GITHUB_TOKEN
+    skip_cleanup: true
+    file_glob: true
+    file: travis-release-upload/*
+    on:
+      tags: true

CONTRIBUTING.md

@@ -8,6 +8,56 @@ don't agree with a convention, submit a PR patching this document and let's disc
 the PR is accepted, *all* code should be updated as soon as possible to reflect the new
 conventions.
 
+Pull Requests
+---
+
+Small, frequent PRs are much preferred to large, infrequent ones. A large PR is difficult
+to review, can block others from making progress, and can quickly get its author into
+"rebase hell". A large PR oftentimes arises when one change requires another, which requires
+another, and then another. When you notice those dependencies, put the fix into a commit of
+its own, then checkout a new branch, and cherrypick it. Open a PR to start the review
+process and then jump back to your original branch to keep making progress. Once the commit
+is merged, you can use git-rebase to purge it from your original branch.
+
+```bash
+$ git pull --rebase upstream master
+```
+
+### How big is too big?
+
+If there are no functional changes, PRs can be very large and that's no problem. If,
+however, your changes are making meaningful changes or additions, then about 1,000 lines of
+changes is about the most you should ask a Solana maintainer to review.
+
+### Should I send small PRs as I develop large, new components?
+
+Add only code to the codebase that is ready to be deployed. If you are building a large
+library, consider developing it in a separate git repository. When it is ready to be
+integrated, the Solana maintainers will work with you to decide on a path forward. Smaller
+libraries may be copied in whereas very large ones may be pulled in with a package manager.
+
+### When will my PR be reviewed?
+
+PRs are typically reviewed and merged in under 7 days. If your PR has been open for longer,
+it's a strong indicator that the reviewers aren't confident the change meets the quality
+standards of the codebase. You might consider closing it and coming back with smaller PRs
+and longer descriptions detailing what problem it solves and how it solves it.
+
+Draft Pull Requests
+---
+
+If you want early feedback on your PR, use GitHub's "Draft Pull Request"
+mechanism. Draft PRs are a convenient way to collaborate with the Solana
+maintainers without triggering notifications as you make changes. When you feel
+your PR is ready for a broader audience, you can transition your draft PR to a
+standard PR with the click of a button.
+
+Do not add reviewers to draft PRs.  GitHub doesn't automatically clear approvals
+when you click "Ready for Review", so a review that meant "I approve of the
+direction" suddenly has the appearance of "I approve of these changes." Instead,
+add a comment that mentions the usernames that you would like a review from. Ask
+explicitly what you would like feedback on.
+
 Rust coding conventions
 ---
 
@@ -17,7 +67,7 @@ Rust coding conventions
 * All Rust code is linted with Clippy. If you'd prefer to ignore its advice, do so explicitly:
 
   ```rust
-  #[cfg_attr(feature = "cargo-clippy", allow(too_many_arguments))]
+  #[allow(clippy::too_many_arguments)]
   ```
 
   Note: Clippy defaults can be overridden in the top-level file `.clippy.toml`.
@@ -30,7 +80,7 @@ Rust coding conventions
 
 * For function and method names, use `<verb>_<subject>`. For unit tests, that verb should
   always be `test` and for benchmarks the verb should always be `bench`. Avoid namespacing
-  function names with some arbitrary word. Avoid abreviating words in function names.
+  function names with some arbitrary word. Avoid abbreviating words in function names.
 
 * As they say, "When in Rome, do as the Romans do." A good patch should acknowledge the coding
   conventions of the code that surrounds it, even in the case where that code has not yet been
@@ -43,11 +93,26 @@ Terminology
 Inventing new terms is allowed, but should only be done when the term is widely used and
 understood. Avoid introducing new 3-letter terms, which can be confused with 3-letter acronyms.
 
-Some terms we currently use regularly in the codebase:
+[Terms currently in use](book/src/terminology.md)
 
-* fullnode: n. A fully participating network node.
-* hash: n. A SHA-256 Hash.
-* keypair: n. A Ed25519 key-pair, containing a public and private key.
-* pubkey: n. The public key of a Ed25519 key-pair.
-* sigverify: v. To verify a Ed25519 digital signature.
 
+Design Proposals
+---
+
+Solana's architecture is described by a book generated from markdown files in
+the `book/src/` directory, maintained by an *editor* (currently @garious). To
+add a design proposal, you'll need to at least propose a change the content
+under the [Accepted Design
+Proposals](https://docs.solana.com/book/v/master/proposals) chapter.
+Here's the full process:
+
+1. Propose a design by creating a PR that adds a markdown document to the
+   directory `book/src/` and references it from the [table of
+   contents](book/src/SUMMARY.md). Add any relevant *maintainers* to the PR review.
+2. The PR being merged indicates your proposed change was accepted and that the
+   maintainers support your plan of attack.
+3. Submit PRs that implement the proposal. When the implementation reveals the
+   need for tweaks to the proposal, be sure to update the proposal and have
+   that change reviewed by the same people as in step 1.
+4. Once the implementation is complete, submit a PR that moves the link from
+   the Accepted Proposals to the Implemented Proposals section.

Cargo.toml

@@ -1,148 +1,127 @@
-[package]
-name = "solana"
-description = "Blockchain, Rebuilt for Scale"
-version = "0.9.0"
-documentation = "https://docs.rs/solana"
-homepage = "http://solana.com/"
-readme = "README.md"
-repository = "https://github.com/solana-labs/solana"
-authors = [
-    "Anatoly Yakovenko <anatoly@solana.com>",
-    "Greg Fitzgerald <greg@solana.com>",
-    "Stephen Akridge <stephen@solana.com>",
-    "Michael Vines <mvines@solana.com>",
-    "Rob Walker <rob@solana.com>",
-    "Pankaj Garg <pankaj@solana.com>",
-    "Tyera Eulberg <tyera@solana.com>",
-]
-license = "Apache-2.0"
-
-[[bin]]
-name = "solana-upload-perf"
-path = "src/bin/upload-perf.rs"
-
-[[bin]]
-name = "solana-bench-streamer"
-path = "src/bin/bench-streamer.rs"
-
-[[bin]]
-name = "solana-bench-tps"
-path = "src/bin/bench-tps.rs"
-
-[[bin]]
-name = "solana-drone"
-path = "src/bin/drone.rs"
-
-[[bin]]
-name = "solana-replicator"
-path = "src/bin/replicator.rs"
-
-[[bin]]
-name = "solana-fullnode"
-path = "src/bin/fullnode.rs"
-
-[[bin]]
-name = "solana-fullnode-config"
-path = "src/bin/fullnode-config.rs"
-
-[[bin]]
-name = "solana-genesis"
-path = "src/bin/genesis.rs"
-
-[[bin]]
-name = "solana-ledger-tool"
-path = "src/bin/ledger-tool.rs"
-
-[[bin]]
-name = "solana-keygen"
-path = "src/bin/keygen.rs"
-
-[[bin]]
-name = "solana-wallet"
-path = "src/bin/wallet.rs"
-
-[badges]
-codecov = { repository = "solana-labs/solana", branch = "master", service = "github" }
-
-[features]
-unstable = []
-ipv6 = []
-cuda = []
-erasure = []
-test = []
-
-[dependencies]
-atty = "0.2"
-bincode = "1.0.0"
-bs58 = "0.2.0"
-byteorder = "1.2.1"
-bytes = "0.4"
-chrono = { version = "0.4.0", features = ["serde"] }
-clap = "2.31"
-dirs = "1.0.2"
-env_logger = "0.5.12"
-generic-array = { version = "0.12.0", default-features = false, features = ["serde"] }
-getopts = "0.2"
-influx_db_client = "0.3.4"
-solana-jsonrpc-core = "0.1"
-solana-jsonrpc-http-server = "0.1"
-solana-jsonrpc-macros = "0.1"
-ipnetwork = "0.12.7"
-itertools = "0.7.8"
-libc = "0.2.43"
-libloading = "0.5.0"
-log = "0.4.2"
-matches = "0.1.6"
-nix = "0.11.0"
-pnet_datalink = "0.21.0"
-rand = "0.5.1"
-rayon = "1.0.0"
-reqwest = "0.9.0"
-ring = "0.13.2"
-sha2 = "0.7.0"
-serde = "1.0.27"
-serde_cbor = "0.9.0"
-serde_derive = "1.0.27"
-serde_json = "1.0.10"
-socket2 = "0.3.8"
-solana_program_interface = { path = "common" }
-sys-info = "0.5.6"
-tokio = "0.1"
-tokio-codec = "0.1"
-untrusted = "0.6.2"
-
-[dev-dependencies]
-noop = { path = "programs/noop" }
-print = { path = "programs/print" }
-move_funds = { path = "programs/move_funds" }
-
-[[bench]]
-name = "bank"
-
-[[bench]]
-name = "banking_stage"
-
-[[bench]]
-name = "ledger"
-
-[[bench]]
-name = "signature"
-
-[[bench]]
-name = "sigverify"
-
 [workspace]
-members = [
-    ".",
-    "common",
-    "programs/noop",
-    "programs/print",
-    "programs/move_funds",
-]
+# The members list excluding the `validator-cuda` crate
 default-members = [
-    ".",
-    "common",
-    "programs/noop",
-    "programs/print",
-    "programs/move_funds",
+    "bench-exchange",
+    "bench-streamer",
+    "bench-tps",
+    "banking_bench",
+    "chacha-sys",
+    "client",
+    "core",
+    "drone",
+    "validator",
+    "genesis",
+    "genesis_programs",
+    "gossip",
+    "install",
+    "keygen",
+    "kvstore",
+    "ledger-tool",
+    "local_cluster",
+    "logger",
+    "merkle-tree",
+    "measure",
+    "metrics",
+    "programs/bpf_loader_api",
+    "programs/bpf_loader_program",
+    "programs/budget_api",
+    "programs/budget_program",
+    "programs/btc_spv_program",
+    "programs/btc_spv_api",
+    "programs/btc_spv_bin",
+    "programs/config_api",
+    "programs/config_program",
+    "programs/config_tests",
+    "programs/exchange_api",
+    "programs/exchange_program",
+    "programs/failure_program",
+    "programs/move_loader_api",
+    "programs/move_loader_program",
+    "programs/librapay_api",
+    "programs/noop_program",
+    "programs/stake_api",
+    "programs/stake_program",
+    "programs/stake_tests",
+    "programs/storage_api",
+    "programs/storage_program",
+    "programs/token_api",
+    "programs/token_program",
+    "programs/vote_api",
+    "programs/vote_program",
+    "replicator",
+    "runtime",
+    "sdk",
+    "sdk-c",
+    "upload-perf",
+    "netutil",
+    "fixed-buf",
+    "vote-signer",
+    "cli",
+    "rayon-threadlimit",
+]
+
+# The default-members list and the `validator-cuda` crate
+members = [
+    "bench-exchange",
+    "bench-streamer",
+    "bench-tps",
+    "banking_bench",
+    "chacha-sys",
+    "client",
+    "core",
+    "drone",
+    "validator",
+    "genesis",
+    "genesis_programs",
+    "gossip",
+    "install",
+    "keygen",
+    "kvstore",
+    "ledger-tool",
+    "local_cluster",
+    "logger",
+    "merkle-tree",
+    "measure",
+    "metrics",
+    "programs/bpf_loader_api",
+    "programs/bpf_loader_program",
+    "programs/budget_api",
+    "programs/budget_program",
+    "programs/btc_spv_program",
+    "programs/btc_spv_api",
+    "programs/btc_spv_bin",
+    "programs/config_api",
+    "programs/config_program",
+    "programs/config_tests",
+    "programs/exchange_api",
+    "programs/exchange_program",
+    "programs/failure_program",
+    "programs/move_loader_api",
+    "programs/move_loader_program",
+    "programs/librapay_api",
+    "programs/noop_program",
+    "programs/stake_api",
+    "programs/stake_program",
+    "programs/stake_tests",
+    "programs/storage_api",
+    "programs/storage_program",
+    "programs/token_api",
+    "programs/token_program",
+    "programs/vote_api",
+    "programs/vote_program",
+    "replicator",
+    "runtime",
+    "sdk",
+    "sdk-c",
+    "upload-perf",
+    "netutil",
+    "fixed-buf",
+    "vote-signer",
+    "cli",
+    "rayon-threadlimit",
+    "validator-cuda",
+]
+
+exclude = [
+    "programs/bpf",
 ]

README.md

@@ -1,9 +1,9 @@
-[![Solana crate](https://img.shields.io/crates/v/solana.svg)](https://crates.io/crates/solana)
-[![Solana documentation](https://docs.rs/solana/badge.svg)](https://docs.rs/solana)
-[![Build status](https://badge.buildkite.com/d4c4d7da9154e3a8fb7199325f430ccdb05be5fc1e92777e51.svg?branch=master)](https://solana-ci-gate.herokuapp.com/buildkite_public_log?https://buildkite.com/solana-labs/solana/builds/latest/master)
+[![Solana crate](https://img.shields.io/crates/v/solana-core.svg)](https://crates.io/crates/solana-core)
+[![Solana documentation](https://docs.rs/solana-core/badge.svg)](https://docs.rs/solana-core)
+[![Build status](https://badge.buildkite.com/8cc350de251d61483db98bdfc895b9ea0ac8ffa4a32ee850ed.svg?branch=master)](https://buildkite.com/solana-labs/solana/builds?branch=master)
 [![codecov](https://codecov.io/gh/solana-labs/solana/branch/master/graph/badge.svg)](https://codecov.io/gh/solana-labs/solana)
 
-Blockchain, Rebuilt for Scale
+Blockchain Rebuilt for Scale
 ===
 
 Solana™ is a new blockchain architecture built from the ground up for scale. The architecture supports
@@ -21,246 +21,48 @@ It's possible for a centralized database to process 710,000 transactions per sec
 
 > Perhaps the most striking difference between algorithms obtained by our method and ones based upon timeout is that using timeout produces a traditional distributed algorithm in which the processes operate asynchronously, while our method produces a globally synchronous one in which every process does the same thing at (approximately) the same time. Our method seems to contradict the whole purpose of distributed processing, which is to permit different processes to operate independently and perform different functions. However, if a distributed system is really a single system, then the processes must be synchronized in some way. Conceptually, the easiest way to synchronize processes is to get them all to do the same thing at the same time. Therefore, our method is used to implement a kernel that performs the necessary synchronization--for example, making sure that two different processes do not try to modify a file at the same time. Processes might spend only a small fraction of their time executing the synchronizing kernel; the rest of the time, they can operate independently--e.g., accessing different files. This is an approach we have advocated even when fault-tolerance is not required. The method's basic simplicity makes it easier to understand the precise properties of a system, which is crucial if one is to know just how fault-tolerant the system is. [\[L.Lamport (1984)\]](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.71.1078)
 
-Furthermore, and much to our surprise, it can be implemented using a mechanism that has existed in Bitcoin since day one. The Bitcoin feature is called nLocktime and it can be used to postdate transactions using block height instead of a timestamp. As a Bitcoin client, you'd use block height instead of a timestamp if you don't trust the network. Block height turns out to be an instance of what's being called a Verifiable Delay Function in cryptography circles. It's a cryptographically secure way to say time has passed. In Solana, we use a far more granular verifiable delay function, a SHA 256 hash chain, to checkpoint the ledger and coordinate consensus. With it, we implement Optimistic Concurrency Control and are now well in route towards that theoretical limit of 710,000 transactions per second.
+Furthermore, and much to our surprise, it can be implemented using a mechanism that has existed in Bitcoin since day one. The Bitcoin feature is called nLocktime and it can be used to postdate transactions using block height instead of a timestamp. As a Bitcoin client, you'd use block height instead of a timestamp if you don't trust the network. Block height turns out to be an instance of what's being called a Verifiable Delay Function in cryptography circles. It's a cryptographically secure way to say time has passed. In Solana, we use a far more granular verifiable delay function, a SHA 256 hash chain, to checkpoint the ledger and coordinate consensus. With it, we implement Optimistic Concurrency Control and are now well en route towards that theoretical limit of 710,000 transactions per second.
 
-
-Testnet Demos
+Architecture
 ===
 
-The Solana repo contains all the scripts you might need to spin up your own
-local testnet. Depending on what you're looking to achieve, you may want to
-run a different variation, as the full-fledged, performance-enhanced
-multinode testnet is considerably more complex to set up than a Rust-only,
-singlenode testnode.  If you are looking to develop high-level features, such
-as experimenting with smart contracts, save yourself some setup headaches and
-stick to the Rust-only singlenode demo.  If you're doing performance optimization
-of the transaction pipeline, consider the enhanced singlenode demo. If you're
-doing consensus work, you'll need at least a Rust-only multinode demo. If you want
-to reproduce our TPS metrics, run the enhanced multinode demo.
+Before you jump into the code, review the online book [Solana: Blockchain Rebuilt for Scale](https://docs.solana.com/book/).
 
-For all four variations, you'd need the latest Rust toolchain and the Solana
-source code:
+(The _latest_ development version of the online book is also [available here](https://docs.solana.com/book/v/master/).)
 
-First, install Rust's package manager Cargo.
+Release Binaries
+===
+Official release binaries are available at [Github Releases](https://github.com/solana-labs/solana/releases).
 
-```bash
-$ curl https://sh.rustup.rs -sSf | sh
-$ source $HOME/.cargo/env
-```
+Additionally we provide pre-release binaries for the latest code on the edge and
+beta channels.  Note that these pre-release binaries may be less stable than an
+official release.
 
-Now checkout the code from github:
+### Edge channel
+#### Linux (x86_64-unknown-linux-gnu)
+* [solana.tar.bz2](http://release.solana.com/edge/solana-release-x86_64-unknown-linux-gnu.tar.bz2)
+* [solana-install-init](http://release.solana.com/edge/solana-install-init-x86_64-unknown-linux-gnu) as a stand-alone executable
+#### mac OS (x86_64-apple-darwin)
+* [solana.tar.bz2](http://release.solana.com/edge/solana-release-x86_64-apple-darwin.tar.bz2)
+* [solana-install-init](http://release.solana.com/edge/solana-install-init-x86_64-apple-darwin) as a stand-alone executable
+#### Windows (x86_64-pc-windows-msvc)
+* [solana.tar.bz2](http://release.solana.com/edge/solana-release-x86_64-pc-windows-msvc.tar.bz2)
+* [solana-install-init.exe](http://release.solana.com/edge/solana-install-init-x86_64-pc-windows-msvc.exe) as a stand-alone executable
+#### All platforms
+* [solana-metrics.tar.bz2](http://release.solana.com.s3.amazonaws.com/edge/solana-metrics.tar.bz2)
 
-```bash
-$ git clone https://github.com/solana-labs/solana.git
-$ cd solana
-```
-
-The demo code is sometimes broken between releases as we add new low-level
-features, so if this is your first time running the demo, you'll improve
-your odds of success if you check out the
-[latest release](https://github.com/solana-labs/solana/releases)
-before proceeding:
-
-```bash
-$ git checkout v0.8.0
-```
-
-Configuration Setup
----
-
-The network is initialized with a genesis ledger and leader/validator configuration files.
-These files can be generated by running the following script.
-
-```bash
-$ ./multinode-demo/setup.sh
-```
-
-Drone
----
-
-In order for the leader, client and validators to work, we'll need to
-spin up a drone to give out some test tokens.  The drone delivers Milton
-Friedman-style "air drops" (free tokens to requesting clients) to be used in
-test transactions.
-
-Start the drone on the leader node with:
-
-```bash
-$ ./multinode-demo/drone.sh
-```
-
-Singlenode Testnet
----
-
-Before you start a fullnode, make sure you know the IP address of the machine you
-want to be the leader for the demo, and make sure that udp ports 8000-10000 are
-open on all the machines you want to test with.
-
-Now start the server in a separate shell:
-
-```bash
-$ ./multinode-demo/leader.sh
-```
-
-Wait a few seconds for the server to initialize. It will print "leader ready..." when it's ready to
-receive transactions. The leader will request some tokens from the drone if it doesn't have any.
-The drone does not need to be running for subsequent leader starts.
-
-Multinode Testnet
----
-
-To run a multinode testnet, after starting a leader node, spin up some validator nodes in
-separate shells:
-
-```bash
-$ ./multinode-demo/validator.sh
-```
-
-To run a performance-enhanced leader or validator (on Linux),
-[CUDA 9.2](https://developer.nvidia.com/cuda-downloads) must be installed on
-your system:
-
-```bash
-$ ./fetch-perf-libs.sh
-$ SOLANA_CUDA=1 ./multinode-demo/leader.sh
-$ SOLANA_CUDA=1 ./multinode-demo/validator.sh
-```
-
-
-Testnet Client Demo
----
-
-Now that your singlenode or multinode testnet is up and running let's send it
-some transactions!
-
-In a separate shell start the client:
-
-```bash
-$ ./multinode-demo/client.sh # runs against localhost by default
-```
-
-What just happened? The client demo spins up several threads to send 500,000 transactions
-to the testnet as quickly as it can. The client then pings the testnet periodically to see
-how many transactions it processed in that time. Take note that the demo intentionally
-floods the network with UDP packets, such that the network will almost certainly drop a
-bunch of them. This ensures the testnet has an opportunity to reach 710k TPS. The client
-demo completes after it has convinced itself the testnet won't process any additional
-transactions. You should see several TPS measurements printed to the screen. In the
-multinode variation, you'll see TPS measurements for each validator node as well.
-
-Public Testnet
---------------
-In this example the client connects to our public testnet. To run validators on the testnet you would need to open udp ports `8000-10000`.
-
-```bash
-$ ./multinode-demo/client.sh --network $(dig +short testnet.solana.com):8001 --identity config-private/client-id.json --duration 60
-```
-
-You can observe the effects of your client's transactions on our [dashboard](https://metrics.solana.com:3000/d/testnet/testnet-hud?orgId=2&from=now-30m&to=now&refresh=5s&var-testnet=testnet)
-
-
-Linux Snap
----
-A Linux [Snap](https://snapcraft.io/) is available, which can be used to
-easily get Solana running on supported Linux systems without building anything
-from source.  The `edge` Snap channel is updated daily with the latest
-development from the `master` branch.  To install:
-
-```bash
-$ sudo snap install solana --edge --devmode
-```
-
-(`--devmode` flag is required only for `solana.fullnode-cuda`)
-
-Once installed the usual Solana programs will be available as `solona.*` instead
-of `solana-*`.  For example, `solana.fullnode` instead of `solana-fullnode`.
-
-Update to the latest version at any time with:
-
-```bash
-$ snap info solana
-$ sudo snap refresh solana --devmode
-```
-
-### Daemon support
-The snap supports running a leader, validator or leader+drone node as a system
-daemon.
-
-Run `sudo snap get solana` to view the current daemon configuration.  To view
-daemon logs:
-1. Run `sudo snap logs -n=all solana` to view the daemon initialization log
-2. Runtime logging can be found under `/var/snap/solana/current/leader/`,
-`/var/snap/solana/current/validator/`, or `/var/snap/solana/current/drone/` depending
-on which `mode=` was selected.  Within each log directory the file `current`
-contains the latest log, and the files `*.s` (if present) contain older rotated
-logs.
-
-Disable the daemon at any time by running:
-
-```bash
-$ sudo snap set solana mode=
-```
-
-Runtime configuration files for the daemon can be found in
-`/var/snap/solana/current/config`.
-
-#### Leader daemon
-
-```bash
-$ sudo snap set solana mode=leader
-```
-
-If CUDA is available:
-
-```bash
-$ sudo snap set solana mode=leader enable-cuda=1
-```
-
-`rsync` must be configured and running on the leader.
-
-1. Ensure rsync is installed with `sudo apt-get -y install rsync`
-2. Edit `/etc/rsyncd.conf` to include the following
-```
-[config]
-path = /var/snap/solana/current/config
-hosts allow = *
-read only = true
-```
-3. Run `sudo systemctl enable rsync; sudo systemctl start rsync`
-4. Test by running `rsync -Pzravv rsync://<ip-address-of-leader>/config
-solana-config` from another machine.  **If the leader is running on a cloud
-provider it may be necessary to configure the Firewall rules to permit ingress
-to port tcp:873, tcp:9900 and the port range udp:8000-udp:10000**
-
-
-To run both the Leader and Drone:
-
-```bash
-$ sudo snap set solana mode=leader+drone
-
-```
-
-#### Validator daemon
-
-```bash
-$ sudo snap set solana mode=validator
-
-```
-If CUDA is available:
-
-```bash
-$ sudo snap set solana mode=validator enable-cuda=1
-```
-
-By default the validator will connect to **testnet.solana.com**, override
-the leader IP address by running:
-
-```bash
-$ sudo snap set solana mode=validator leader-address=127.0.0.1 #<-- change IP address
-```
-
-It's assumed that the leader will be running `rsync` configured as described in
-the previous **Leader daemon** section.
+### Beta channel
+#### Linux (x86_64-unknown-linux-gnu)
+* [solana.tar.bz2](http://release.solana.com/beta/solana-release-x86_64-unknown-linux-gnu.tar.bz2)
+* [solana-install-init](http://release.solana.com/beta/solana-install-init-x86_64-unknown-linux-gnu) as a stand-alone executable
+#### mac OS (x86_64-apple-darwin)
+* [solana.tar.bz2](http://release.solana.com/beta/solana-release-x86_64-apple-darwin.tar.bz2)
+* [solana-install-init](http://release.solana.com/beta/solana-install-init-x86_64-apple-darwin) as a stand-alone executable
+#### Windows (x86_64-pc-windows-msvc)
+* [solana.tar.bz2](http://release.solana.com/beta/solana-release-x86_64-pc-windows-msvc.tar.bz2)
+* [solana-install-init.exe](http://release.solana.com/beta/solana-install-init-x86_64-pc-windows-msvc.exe) as a stand-alone executable
+#### All platforms
+* [solana-metrics.tar.bz2](http://release.solana.com.s3.amazonaws.com/beta/solana-metrics.tar.bz2)
 
 Developing
 ===
@@ -273,10 +75,10 @@ Install rustc, cargo and rustfmt:
 ```bash
 $ curl https://sh.rustup.rs -sSf | sh
 $ source $HOME/.cargo/env
-$ rustup component add rustfmt-preview
+$ rustup component add rustfmt
 ```
 
-If your rustc version is lower than 1.26.1, please update it:
+If your rustc version is lower than 1.37.0, please update it:
 
 ```bash
 $ rustup update
@@ -285,7 +87,7 @@ $ rustup update
 On Linux systems you may need to install libssl-dev, pkg-config, zlib1g-dev, etc.  On Ubuntu:
 
 ```bash
-$ sudo apt-get install libssl-dev pkg-config zlib1g-dev
+$ sudo apt-get install libssl-dev pkg-config zlib1g-dev llvm clang
 ```
 
 Download the source code:
@@ -295,6 +97,17 @@ $ git clone https://github.com/solana-labs/solana.git
 $ cd solana
 ```
 
+Build
+
+```bash
+$ cargo build
+```
+
+Then to run a minimal local cluster
+```bash
+$ ./run.sh
+```
+
 Testing
 ---
 
@@ -304,43 +117,91 @@ Run the test suite:
 $ cargo test
 ```
 
-To emulate all the tests that will run on a Pull Request, run:
-
-```bash
-$ ./ci/run-local.sh
-```
-
-Debugging
+Local Testnet
 ---
 
-There are some useful debug messages in the code, you can enable them on a per-module and per-level
-basis.  Before running a leader or validator set the normal RUST\_LOG environment variable.
+Start your own testnet locally, instructions are in the book [Solana: Blockchain Rebuild for Scale: Getting Started](https://docs.solana.com/book/getting-started).
 
-For example, to enable info everywhere and debug only in the solana::banking_stage module:
+Remote Testnets
+---
 
-```bash
-$ export RUST_LOG=info,solana::banking_stage=debug
-```
+We maintain several testnets:
 
-Generally we are using debug for infrequent debug messages, trace for potentially frequent
-messages and info for performance-related logging.
+* `testnet` - public stable testnet accessible via testnet.solana.com. Runs 24/7
+* `testnet-beta` - public beta channel testnet accessible via beta.testnet.solana.com. Runs 24/7
+* `testnet-edge` - public edge channel testnet accessible via edge.testnet.solana.com. Runs 24/7
 
-You can also attach to a running process with GDB.  The leader's process is named
-_solana-fullnode_:
+## Deploy process
 
-```bash
-$ sudo gdb
-attach <PID>
-set logging on
-thread apply all bt
-```
+They are deployed with the `ci/testnet-manager.sh` script through a list of [scheduled
+buildkite jobs](https://buildkite.com/solana-labs/testnet-management/settings/schedules).
+Each testnet can be manually manipulated from buildkite as well.
+
+## How do I reset the testnet?
+Manually trigger the [testnet-management](https://buildkite.com/solana-labs/testnet-management) pipeline
+and when prompted select the desired testnet
+
+## How can I scale the tx generation rate?
+
+Increase the TX rate by increasing the number of cores on the client machine which is running
+`bench-tps` or run multiple clients. Decrease by lowering cores or using the rayon env
+variable `RAYON_NUM_THREADS=<xx>`
+
+## How can I test a change on the testnet?
+
+Currently, a merged PR is the only way to test a change on the testnet.  But you
+can run your own testnet using the scripts in the `net/` directory.
+
+## Adjusting the number of clients or validators on the testnet
+Edit `ci/testnet-manager.sh`
+
+
+## Metrics Server Maintenance
+Sometimes the dashboard becomes unresponsive. This happens due to glitch in the metrics server.
+The current solution is to reset the metrics server. Use the following steps.
+
+1. The server is hosted in a GCP VM instance. Check if the VM instance is down by trying to SSH
+ into it from the GCP console. The name of the VM is ```metrics-solana-com```.
+2. If the VM is inaccessible, reset it from the GCP console.
+3. Once VM is up (or, was already up), the metrics services can be restarted from build automation.
+    1. Navigate to https://buildkite.com/solana-labs/metrics-dot-solana-dot-com in your web browser
+    2. Click on ```New Build```
+    3. This will show a pop up dialog. Click on ```options``` drop down.
+    4. Type in ```FORCE_START=true``` in ```Environment Variables``` text box.
+    5. Click ```Create Build```
+    6. This will restart the metrics services, and the dashboards should be accessible afterwards.
+
+## Debugging Testnet
+Testnet may exhibit different symptoms of failures. Primary statistics to check are
+1. Rise in Confirmation Time
+2. Nodes are not voting
+3. Panics, and OOM notifications
+
+Check the following if there are any signs of failure.
+1. Did testnet deployment fail?
+    1. View buildkite logs for the last deployment: https://buildkite.com/solana-labs/testnet-management
+    2. Use the relevant branch
+    3. If the deployment failed, look at the build logs. The build artifacts for each remote node is uploaded.
+       It's a good first step to triage from these logs.
+2. You may have to log into remote node if the deployment succeeded, but something failed during runtime.
+    1. Get the private key for the testnet deployment from ```metrics-solana-com``` GCP instance.
+    2. SSH into ```metrics-solana-com``` using GCP console and do the following.
+    ```bash
+    sudo bash
+    cd ~buildkite-agent/.ssh
+    ls
+    ```
+    3. Copy the relevant private key to your local machine
+    4. Find the public IP address of the AWS instance for the remote node using AWS console
+    5. ```ssh -i <private key file> ubuntu@<ip address of remote node>```
+    6. The logs are in ```~solana\solana``` folder
 
-This will dump all the threads stack traces into gdb.txt
 
 Benchmarking
 ---
 
-First install the nightly build of rustc. `cargo bench` requires unstable features:
+First install the nightly build of rustc. `cargo bench` requires use of the
+unstable features only available in the nightly build.
 
 ```bash
 $ rustup install nightly
@@ -349,33 +210,24 @@ $ rustup install nightly
 Run the benchmarks:
 
 ```bash
-$ cargo +nightly bench --features="unstable"
+$ cargo +nightly bench
 ```
 
 Release Process
 ---
-The release process for this project is described [here](rfcs/rfc-005-branches-tags-and-channels.md).
+The release process for this project is described [here](RELEASE.md).
 
 
 Code coverage
 ---
 
-To generate code coverage statistics, install cargo-cov. Note: the tool currently only works
-in Rust nightly.
+To generate code coverage statistics:
 
 ```bash
-$ cargo +nightly install cargo-cov
+$ scripts/coverage.sh
+$ open target/cov/lcov-local/index.html
 ```
 
-Run cargo-cov and generate a report:
-
-```bash
-$ cargo +nightly cov test
-$ cargo +nightly cov report --open
-```
-
-The coverage report will be written to `./target/cov/report/index.html`
-
 
 Why coverage? While most see coverage as a code quality metric, we see it primarily as a developer
 productivity metric. When a developer makes a change to the codebase, presumably it's a *solution* to

RELEASE.md

@@ -1,32 +1,204 @@
 # Solana Release process
 
-## Introduction
+## Branches and Tags
 
-Solana uses a channel-oriented, date-based branching process described [here](https://github.com/solana-labs/solana/blob/master/rfcs/rfc-005-branches-tags-and-channels.md).
+```
+========================= master branch (edge channel) =======================>
+         \                      \                     \
+          \___v0.7.0 tag         \                     \
+           \                      \         v0.9.0 tag__\
+            \          v0.8.0 tag__\                     \
+ v0.7.1 tag__\                      \                 v0.9 branch (beta channel)
+              \___v0.7.2 tag         \___v0.8.1 tag
+               \                      \
+                \                      \
+           v0.7 branch         v0.8 branch (stable channel)
 
-## Release Steps
+```
 
-### Changing channels
+### master branch
+All new development occurs on the `master` branch.
 
-When cutting a new channel branch these pre-steps are required:
+Bug fixes that affect a `vX.Y` branch are first made on `master`.  This is to
+allow a fix some soak time on `master` before it is applied to one or more
+stabilization branches.
 
-1. Pick your branch point for release on master.
-2. Create the branch.  The name should be "v" + the first 2 "version" fields from Cargo.toml.  For example, a Cargo.toml with version = "0.9.0" implies the next branch name is "v0.9".
-3. Update Cargo.toml to the next semantic version (e.g. 0.9.0 -> 0.10.0).
-4. Push your new branch to solana.git
-5. Land your Carto.toml change as a master PR.
+Merging to `master` first also helps ensure that fixes applied to one release
+are present for future releases.  (Sometimes the joy of landing a critical
+release blocker in a branch causes you to forget to propagate back to
+`master`!)"
 
-At this point, ci/channel-info.sh should show your freshly cut release branch as "BETA_CHANNEL" and the previous release branch as "STABLE_CHANNEL".
+Once the bug fix lands on `master` it is cherry-picked into the `vX.Y` branch
+and potentially the `vX.Y-1` branch.  The exception to this rule is when a bug
+fix for `vX.Y` doesn't apply to `master` or `vX.Y-1`.
 
-### Updating channels (i.e. "making a release")
+Immediately after a new stabilization branch is forged, the `Cargo.toml` minor
+version (*Y*) in the `master` branch is incremented by the release engineer.
+Incrementing the major version of the `master` branch is outside the scope of
+this document.
 
-We use [github's Releases UI](https://github.com/solana-labs/solana/releases) for tagging a release.
+### v*X.Y* stabilization branches
+These are stabilization branches for a given milestone.  They are created off
+the `master` branch as late as possible prior to the milestone release.
 
-1. Go [there ;)](https://github.com/solana-labs/solana/releases).
-2. Click "Draft new release".
-3. If the first major release on the branch (e.g. v0.8.0), paste in [this template](https://raw.githubusercontent.com/solana-labs/solana/master/.github/RELEASE_TEMPLATE.md) and fill it in.
-4. Test the release by generating a tag using semver's rules.  First try at a release should be <branchname>.X-rc.0.
-5. Verify release automation:
-   1. [Crates.io](https://crates.io/crates/solana) should have an updated Solana version.
-   2. ...
-6. After testnet deployment, verify that testnets are running correct software.  http://metrics.solana.com should show testnet running on a hash from your newly created branch.
+### v*X.Y.Z* release tag
+The release tags are created as desired by the owner of the given stabilization
+branch, and cause that *X.Y.Z* release to be shipped to https://crates.io
+
+Immediately after a new v*X.Y.Z* branch tag has been created, the `Cargo.toml`
+patch version number (*Z*) of the stabilization branch is incremented by the
+release engineer.
+
+## Channels
+Channels are used by end-users (humans and bots) to consume the branches
+described in the previous section, so they may automatically update to the most
+recent version matching their desired stability.
+
+There are three release channels that map to branches as follows:
+* edge - tracks the `master` branch, least stable.
+* beta - tracks the largest (and latest) `vX.Y` stabilization branch, more stable.
+* stable - tracks the second largest `vX.Y` stabilization branch, most stable.
+
+## Steps to Create a Branch
+
+### Create the new branch
+1. Check out the latest commit on `master` branch:
+    ```
+    git fetch --all
+    git checkout upstream/master
+    ```
+1. Determine the new branch name.  The name should be "v" + the first 2 version fields
+   from Cargo.toml.  For example, a Cargo.toml with version = "0.9.0" implies
+   the next branch name is "v0.9".
+1. Create the new branch and push this branch to the `solana` repository:
+    ```
+    git checkout -b <branchname>
+    git push -u origin <branchname>
+    ```
+
+### Update master branch with the next version
+
+1. After the new branch has been created and pushed, update the Cargo.toml files on **master** to the next semantic version (e.g. 0.9.0 -> 0.10.0) with:
+     ```
+     scripts/increment-cargo-version.sh minor
+     ```
+1. Rebuild to get an updated version of `Cargo.lock`:
+    ```
+    cargo build
+    ```
+1. Push all the changed Cargo.toml and Cargo.lock files to the `master` branch with something like:
+    ```
+    git co -b version_update
+    git ls-files -m | xargs git add
+    git commit -m 'Update Cargo.toml versions from X.Y to X.Y+1'
+    git push -u origin version_update
+    ```
+1. Confirm that your freshly cut release branch is shown as `BETA_CHANNEL` and the previous release branch as `STABLE_CHANNEL`:
+    ```
+    ci/channel_info.sh
+    ```
+
+## Steps to Create a Release
+
+### Create the Release Tag on GitHub
+
+1. Go to [GitHub's Releases UI](https://github.com/solana-labs/solana/releases) for tagging a release.
+1. Click "Draft new release".  The release tag must exactly match the `version`
+   field in `/Cargo.toml` prefixed by `v`.
+   1.  If the Cargo.toml verion field is **0.12.3**, then the release tag must be **v0.12.3**
+1. Make sure the Target Branch field matches the branch you want to make a release on.
+   1.  If you want to release v0.12.0, the target branch must be v0.12
+1. If this is the first release on the branch (e.g. v0.13.**0**), paste in [this
+   template](https://raw.githubusercontent.com/solana-labs/solana/master/.github/RELEASE_TEMPLATE.md).  Engineering Lead can provide summary contents for release notes if needed.
+1. Click "Save Draft", then confirm the release notes look good and the tag name and branch are correct.  Go back into edit the release and click "Publish release" when ready.
+
+### Update release branch with the next patch version
+
+1. After the new release has been tagged, update the Cargo.toml files on **release branch** to the next semantic version (e.g. 0.9.0 -> 0.9.1) with:
+     ```
+     scripts/increment-cargo-version.sh patch
+     ```
+1. Rebuild to get an updated version of `Cargo.lock`:
+    ```
+    cargo build
+    ```
+1. Push all the changed Cargo.toml and Cargo.lock files to the **release branch** with something like:
+    ```
+    git co -b version_update
+    git ls-files -m | xargs git add
+    git commit -m 'Update Cargo.toml versions from X.Y.Z to X.Y.Z+1'
+    git push -u origin version_update
+    ```
+
+### Verify release automation success
+1. Go to [Solana Releases](https://github.com/solana-labs/solana/releases) and click on the latest release that you just published.  Verify that all of the build artifacts are present.  This can take up to 90 minutes after creating the tag.
+1. The `solana-secondary` Buildkite pipeline handles creating the binary tarballs and updated crates.  Look for a job under the tag name of the release: https://buildkite.com/solana-labs/solana-secondary
+1. [Crates.io](https://crates.io/crates/solana) should have an updated Solana version.
+
+### Update documentation
+TODO: Documentation update procedure is WIP as we move to gitbook
+
+Document the new recommended version by updating `book/src/running-replicator.md` and `book/src/validator-testnet.md` on the release (beta) branch to point at the `solana-install` for the upcoming release version.
+
+#### Publish updated Book
+We maintain three copies of the "book" as official documentation:
+
+1) "Book" is the documentation for the latest official release.  This should get manually updated whenever a new release is made.  It is published here:
+https://solana-labs.github.io/book/
+
+2) "Book-edge" tracks the tip of the master branch and updates automatically.
+https://solana-labs.github.io/book-edge/
+
+3) "Book-beta" tracks the tip of the beta branch and updates automatically.
+https://solana-labs.github.io/book-beta/
+
+To manually trigger an update of the "Book", create a new job of the manual-update-book pipeline.
+Set the tag of the latest release as the PUBLISH_BOOK_TAG environment variable.
+```bash
+PUBLISH_BOOK_TAG=v0.16.6
+```
+https://buildkite.com/solana-labs/manual-update-book
+
+### Update software on testnet.solana.com
+
+The testnet running on testnet.solana.com is set to use a fixed release tag
+which is set in the Buildkite testnet-management pipeline.
+This tag needs to be updated and the testnet restarted after a new release
+tag is created.
+
+#### Update testnet schedules
+
+Go to https://buildkite.com/solana-labs and click through: Pipelines ->
+testnet-management -> Pipeline Settings -> Schedules
+Or just click here:
+https://buildkite.com/solana-labs/testnet-management/settings/schedules
+
+There are two scheduled jobs for testnet: a daily restart and an hourly sanity-or-restart. \
+https://buildkite.com/solana-labs/testnet-management/settings/schedules/0efd7856-7143-4713-8817-47e6bdb05387
+https://buildkite.com/solana-labs/testnet-management/settings/schedules/2a926646-d972-42b5-aeb9-bb6759592a53
+
+On each schedule:
+1.  Set TESTNET_TAG environment variable to the desired release tag.
+    1. Example, TESTNET_TAG=v0.13.2
+1.  Set the Build Branch to the branch that TESTNET_TAG is from.
+    1. Example: v0.13
+
+#### Restart the testnet
+
+Trigger a TESTNET_OP=create-and-start to refresh the cluster with the new version
+
+1.  Go to https://buildkite.com/solana-labs/testnet-management
+2.  Click "New Build" and use the following settings, then click "Create Build"
+    1.  Commit: HEAD
+    1.  Branch: [channel branch as set in the schedules]
+    1.  Environment Variables:
+```
+TESTNET=testnet
+TESTNET_TAG=[same value as used in TESTNET_TAG in the schedules]
+TESTNET_OP=create-and-start
+```
+
+### Alert the community
+
+Notify Discord users on #validator-support that a new release for
+testnet.solana.com is available

banking_bench/.gitignore

@@ -0,0 +1,2 @@
+/target/
+/farf/

banking_bench/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+authors = ["Solana Maintainers <maintainers@solana.com>"]
+edition = "2018"
+name = "solana-banking-bench"
+version = "0.19.0-pre0"
+repository = "https://github.com/solana-labs/solana"
+license = "Apache-2.0"
+homepage = "https://solana.com/"
+
+[dependencies]
+log = "0.4.6"
+rayon = "1.2.0"
+solana-core = { path = "../core", version = "0.19.0-pre0" }
+solana-logger = { path = "../logger", version = "0.19.0-pre0" }
+solana-runtime = { path = "../runtime", version = "0.19.0-pre0" }
+solana-measure = { path = "../measure", version = "0.19.0-pre0" }
+solana-sdk = { path = "../sdk", version = "0.19.0-pre0" }
+rand = "0.6.5"
+crossbeam-channel = "0.3"

banking_bench/src/main.rs

@@ -0,0 +1,319 @@
+#[macro_use]
+extern crate solana_core;
+extern crate crossbeam_channel;
+
+use crossbeam_channel::unbounded;
+use log::*;
+use rand::{thread_rng, Rng};
+use rayon::prelude::*;
+use solana_core::bank_forks::BankForks;
+use solana_core::banking_stage::{create_test_recorder, BankingStage};
+use solana_core::blocktree::{get_tmp_ledger_path, Blocktree};
+use solana_core::cluster_info::ClusterInfo;
+use solana_core::cluster_info::Node;
+use solana_core::genesis_utils::{create_genesis_block, GenesisBlockInfo};
+use solana_core::packet::to_packets_chunked;
+use solana_core::poh_recorder::PohRecorder;
+use solana_core::poh_recorder::WorkingBankEntry;
+use solana_core::service::Service;
+use solana_measure::measure::Measure;
+use solana_runtime::bank::Bank;
+use solana_sdk::hash::Hash;
+use solana_sdk::pubkey::Pubkey;
+use solana_sdk::signature::Keypair;
+use solana_sdk::signature::Signature;
+use solana_sdk::system_transaction;
+use solana_sdk::timing::{duration_as_us, timestamp};
+use solana_sdk::transaction::Transaction;
+use std::iter;
+use std::sync::atomic::Ordering;
+use std::sync::mpsc::Receiver;
+use std::sync::{Arc, Mutex, RwLock};
+use std::thread::sleep;
+use std::time::{Duration, Instant};
+
+fn check_txs(
+    receiver: &Arc<Receiver<WorkingBankEntry>>,
+    ref_tx_count: usize,
+    poh_recorder: &Arc<Mutex<PohRecorder>>,
+) -> bool {
+    let mut total = 0;
+    let now = Instant::now();
+    let mut no_bank = false;
+    loop {
+        if let Ok((_bank, (entry, _tick_count))) = receiver.recv_timeout(Duration::from_millis(10))
+        {
+            total += entry.transactions.len();
+        }
+        if total >= ref_tx_count {
+            break;
+        }
+        if now.elapsed().as_secs() > 60 {
+            break;
+        }
+        if poh_recorder.lock().unwrap().bank().is_none() {
+            trace!("no bank");
+            no_bank = true;
+            break;
+        }
+    }
+    if !no_bank {
+        assert!(total >= ref_tx_count);
+    }
+    no_bank
+}
+
+fn make_accounts_txs(txes: usize, mint_keypair: &Keypair, hash: Hash) -> Vec<Transaction> {
+    let to_pubkey = Pubkey::new_rand();
+    let dummy = system_transaction::transfer(mint_keypair, &to_pubkey, 1, hash);
+    (0..txes)
+        .into_par_iter()
+        .map(|_| {
+            let mut new = dummy.clone();
+            let sig: Vec<u8> = (0..64).map(|_| thread_rng().gen()).collect();
+            new.message.account_keys[0] = Pubkey::new_rand();
+            new.message.account_keys[1] = Pubkey::new_rand();
+            new.signatures = vec![Signature::new(&sig[0..64])];
+            new
+        })
+        .collect()
+}
+
+struct Config {
+    packets_per_batch: usize,
+    chunk_len: usize,
+    num_threads: usize,
+}
+
+impl Config {
+    fn get_transactions_index(&self, chunk_index: usize) -> usize {
+        chunk_index * (self.chunk_len / self.num_threads) * self.packets_per_batch
+    }
+}
+
+fn bytes_as_usize(bytes: &[u8]) -> usize {
+    bytes[0] as usize | (bytes[1] as usize) << 8
+}
+
+fn main() {
+    solana_logger::setup();
+    let num_threads = BankingStage::num_threads() as usize;
+    //   a multiple of packet chunk duplicates to avoid races
+    const CHUNKS: usize = 8 * 2;
+    const PACKETS_PER_BATCH: usize = 192;
+    let txes = PACKETS_PER_BATCH * num_threads * CHUNKS;
+    let mint_total = 1_000_000_000_000;
+    let GenesisBlockInfo {
+        genesis_block,
+        mint_keypair,
+        ..
+    } = create_genesis_block(mint_total);
+
+    let (verified_sender, verified_receiver) = unbounded();
+    let (vote_sender, vote_receiver) = unbounded();
+    let bank0 = Bank::new(&genesis_block);
+    let mut bank_forks = BankForks::new(0, bank0);
+    let mut bank = bank_forks.working_bank();
+
+    info!("threads: {} txs: {}", num_threads, txes);
+
+    let mut transactions = make_accounts_txs(txes, &mint_keypair, genesis_block.hash());
+
+    // fund all the accounts
+    transactions.iter().for_each(|tx| {
+        let fund = system_transaction::transfer(
+            &mint_keypair,
+            &tx.message.account_keys[0],
+            mint_total / txes as u64,
+            genesis_block.hash(),
+        );
+        let x = bank.process_transaction(&fund);
+        x.unwrap();
+    });
+    //sanity check, make sure all the transactions can execute sequentially
+    transactions.iter().for_each(|tx| {
+        let res = bank.process_transaction(&tx);
+        assert!(res.is_ok(), "sanity test transactions");
+    });
+    bank.clear_signatures();
+    //sanity check, make sure all the transactions can execute in parallel
+    let res = bank.process_transactions(&transactions);
+    for r in res {
+        assert!(r.is_ok(), "sanity parallel execution");
+    }
+    bank.clear_signatures();
+    let mut verified: Vec<_> = to_packets_chunked(&transactions.clone(), PACKETS_PER_BATCH)
+        .into_iter()
+        .map(|x| {
+            let len = x.packets.len();
+            (x, iter::repeat(1).take(len).collect())
+        })
+        .collect();
+    let ledger_path = get_tmp_ledger_path!();
+    {
+        let blocktree = Arc::new(
+            Blocktree::open(&ledger_path).expect("Expected to be able to open database ledger"),
+        );
+        let (exit, poh_recorder, poh_service, signal_receiver) =
+            create_test_recorder(&bank, &blocktree);
+        let cluster_info = ClusterInfo::new_with_invalid_keypair(Node::new_localhost().info);
+        let cluster_info = Arc::new(RwLock::new(cluster_info));
+        let _banking_stage = BankingStage::new(
+            &cluster_info,
+            &poh_recorder,
+            verified_receiver,
+            vote_receiver,
+        );
+        poh_recorder.lock().unwrap().set_bank(&bank);
+
+        let chunk_len = verified.len() / CHUNKS;
+        let mut start = 0;
+
+        // This is so that the signal_receiver does not go out of scope after the closure.
+        // If it is dropped before poh_service, then poh_service will error when
+        // calling send() on the channel.
+        let signal_receiver = Arc::new(signal_receiver);
+        let signal_receiver2 = signal_receiver.clone();
+        let mut total = 0;
+        let mut tx_total = 0;
+        let mut txs_processed = 0;
+        let mut root = 1;
+        let collector = Pubkey::new_rand();
+        const ITERS: usize = 1_000;
+        let config = Config {
+            packets_per_batch: PACKETS_PER_BATCH,
+            chunk_len,
+            num_threads,
+        };
+        for _ in 0..ITERS {
+            let now = Instant::now();
+            let mut sent = 0;
+
+            for (i, v) in verified[start..start + chunk_len]
+                .chunks(chunk_len / num_threads)
+                .enumerate()
+            {
+                let mut byte = 0;
+                let index = config.get_transactions_index(start + i);
+                if index < transactions.len() {
+                    byte = bytes_as_usize(transactions[index].signatures[0].as_ref());
+                }
+                trace!(
+                    "sending... {}..{} {} v.len: {} sig: {} transactions.len: {} index: {}",
+                    start + i,
+                    start + chunk_len,
+                    timestamp(),
+                    v.len(),
+                    byte,
+                    transactions.len(),
+                    index,
+                );
+                for xv in v {
+                    sent += xv.0.packets.len();
+                }
+                verified_sender.send(v.to_vec()).unwrap();
+            }
+            let start_tx_index = config.get_transactions_index(start);
+            let end_tx_index = config.get_transactions_index(start + chunk_len);
+            for tx in &transactions[start_tx_index..end_tx_index] {
+                loop {
+                    if bank.get_signature_status(&tx.signatures[0]).is_some() {
+                        break;
+                    }
+                    if poh_recorder.lock().unwrap().bank().is_none() {
+                        break;
+                    }
+                    sleep(Duration::from_millis(5));
+                }
+            }
+            if check_txs(&signal_receiver2, txes / CHUNKS, &poh_recorder) {
+                debug!(
+                    "resetting bank {} tx count: {} txs_proc: {}",
+                    bank.slot(),
+                    bank.transaction_count(),
+                    txs_processed
+                );
+                assert!(txs_processed < bank.transaction_count());
+                txs_processed = bank.transaction_count();
+                tx_total += duration_as_us(&now.elapsed());
+
+                let mut poh_time = Measure::start("poh_time");
+                poh_recorder.lock().unwrap().reset(
+                    bank.last_blockhash(),
+                    bank.slot(),
+                    Some((bank.slot(), bank.slot() + 1)),
+                );
+                poh_time.stop();
+
+                let mut new_bank_time = Measure::start("new_bank");
+                let new_bank = Bank::new_from_parent(&bank, &collector, bank.slot() + 1);
+                new_bank_time.stop();
+
+                let mut insert_time = Measure::start("insert_time");
+                bank_forks.insert(new_bank);
+                bank = bank_forks.working_bank();
+                insert_time.stop();
+
+                poh_recorder.lock().unwrap().set_bank(&bank);
+                assert!(poh_recorder.lock().unwrap().bank().is_some());
+                if bank.slot() > 32 {
+                    bank_forks.set_root(root, &None);
+                    root += 1;
+                }
+                debug!(
+                    "new_bank_time: {}us insert_time: {}us poh_time: {}us",
+                    new_bank_time.as_us(),
+                    insert_time.as_us(),
+                    poh_time.as_us(),
+                );
+            } else {
+                tx_total += duration_as_us(&now.elapsed());
+            }
+
+            // This signature clear may not actually clear the signatures
+            // in this chunk, but since we rotate between CHUNKS then
+            // we should clear them by the time we come around again to re-use that chunk.
+            bank.clear_signatures();
+            total += duration_as_us(&now.elapsed());
+            debug!(
+                "time: {} us checked: {} sent: {}",
+                duration_as_us(&now.elapsed()),
+                txes / CHUNKS,
+                sent,
+            );
+
+            if bank.slot() > 0 && bank.slot() % 16 == 0 {
+                for tx in transactions.iter_mut() {
+                    tx.message.recent_blockhash = bank.last_blockhash();
+                    let sig: Vec<u8> = (0..64).map(|_| thread_rng().gen()).collect();
+                    tx.signatures[0] = Signature::new(&sig[0..64]);
+                }
+                verified = to_packets_chunked(&transactions.clone(), PACKETS_PER_BATCH)
+                    .into_iter()
+                    .map(|x| {
+                        let len = x.packets.len();
+                        (x, iter::repeat(1).take(len).collect())
+                    })
+                    .collect();
+            }
+
+            start += chunk_len;
+            start %= verified.len();
+        }
+        eprintln!(
+            "{{'name': 'banking_bench_total', 'median': '{}'}}",
+            total / ITERS as u64,
+        );
+        eprintln!(
+            "{{'name': 'banking_bench_tx_total', 'median': '{}'}}",
+            tx_total / ITERS as u64,
+        );
+
+        drop(vote_sender);
+        exit.store(true, Ordering::Relaxed);
+        poh_service.join().unwrap();
+        sleep(Duration::from_secs(1));
+        debug!("waited for poh_service");
+    }
+    let _unused = Blocktree::destroy(&ledger_path);
+}

bench-exchange/.gitignore

@@ -0,0 +1,4 @@
+/target/
+/config/
+/config-local/
+/farf/

bench-exchange/Cargo.toml

@@ -0,0 +1,39 @@
+[package]
+authors = ["Solana Maintainers <maintainers@solana.com>"]
+edition = "2018"
+name = "solana-bench-exchange"
+version = "0.19.0-pre0"
+repository = "https://github.com/solana-labs/solana"
+license = "Apache-2.0"
+homepage = "https://solana.com/"
+publish = false
+
+[dependencies]
+bincode = "1.1.4"
+bs58 = "0.3.0"
+clap = "2.32.0"
+env_logger = "0.6.2"
+itertools = "0.8.0"
+log = "0.4.8"
+num-derive = "0.2"
+num-traits = "0.2"
+rand = "0.6.5"
+rayon = "1.2.0"
+serde = "1.0.101"
+serde_derive = "1.0.101"
+serde_json = "1.0.40"
+serde_yaml = "0.8.9"
+# solana-runtime = { path = "../solana/runtime"}
+solana-core = { path = "../core", version = "0.19.0-pre0" }
+solana-genesis = { path = "../genesis", version = "0.19.0-pre0" }
+solana-client = { path = "../client", version = "0.19.0-pre0" }
+solana-drone = { path = "../drone", version = "0.19.0-pre0" }
+solana-exchange-api = { path = "../programs/exchange_api", version = "0.19.0-pre0" }
+solana-exchange-program = { path = "../programs/exchange_program", version = "0.19.0-pre0" }
+solana-logger = { path = "../logger", version = "0.19.0-pre0" }
+solana-metrics = { path = "../metrics", version = "0.19.0-pre0" }
+solana-netutil = { path = "../netutil", version = "0.19.0-pre0" }
+solana-runtime = { path = "../runtime", version = "0.19.0-pre0" }
+solana-sdk = { path = "../sdk", version = "0.19.0-pre0" }
+untrusted = "0.7.0"
+ws = "0.9.0"

bench-exchange/README.md

@@ -0,0 +1,479 @@
+# token-exchange
+Solana Token Exchange Bench
+
+If you can't wait; jump to [Running the exchange](#Running-the-exchange) to
+learn how to start and interact with the exchange.
+
+### Table of Contents
+[Overview](#Overview)<br>
+[Premise](#Premise)<br>
+[Exchange startup](#Exchange-startup)<br>
+[Order Requests](#Trade-requests)<br>
+[Order Cancellations](#Trade-cancellations)<br>
+[Trade swap](#Trade-swap)<br>
+[Exchange program operations](#Exchange-program-operations)<br>
+[Quotes and OHLCV](#Quotes-and-OHLCV)<br>
+[Investor strategies](#Investor-strategies)<br>
+[Running the exchange](#Running-the-exchange)<br>
+
+## Overview
+
+An exchange is a marketplace where one asset can be traded for another.  This
+demo demonstrates one way to host an exchange on the Solana blockchain by
+emulating a currency exchange.
+
+The assets are virtual tokens held by investors who may post order requests to
+the exchange.  A Matcher monitors the exchange and posts swap requests for
+matching orders.  All the transactions can execute concurrently.
+
+## Premise
+
+- Exchange
+  -  An exchange is a marketplace where one asset can be traded for another.
+     The exchange in this demo is the on-chain program that implements the
+     tokens and the policies for trading those tokens.
+- Token
+  - A virtual asset that can be owned, traded, and holds virtual intrinsic value
+    compared to other assets.  There are four types of tokens in this demo, A,
+    B, C, D.  Each one may be traded for another.
+- Token account
+  - An account owned by the exchange that holds a quantity of one type of token.
+- Account request
+  - A request to create a token account
+- Token request
+  - A request to deposit tokens of a particular type into a token account.
+- Asset pair
+  - A struct with fields Base and Quote, representing the two assets which make up a 
+    trading pair,  which themselves are Tokens. The Base or 'primary' asset is the
+    numerator and the Quote is the denominator for pricing purposes.
+- Order side
+  - Describes which side of the market an investor wants to place a trade on. Options
+    are "Bid" or "Ask", where a bid represents an offer to purchase the Base asset of
+    the AssetPair for a sum of the Quote Asset and an Ask is an offer to sell Base asset
+    for the Quote asset.
+- Price ratio
+  -  An expression of the relative prices of two tokens. Calculated with the Base
+     Asset as the numerator and the Quote Asset as the denominator. Ratios are 
+     represented as fixed point numbers.  The fixed point scaler is defined in
+     [exchange_state.rs](https://github.com/solana-labs/solana/blob/c2fdd1362a029dcf89c8907c562d2079d977df11/programs/exchange_api/src/exchange_state.rs#L7)
+- Order request
+  - A Solana transaction sent by a trader to the exchange to submit an order. 
+    Order requests are made up of the token pair, the order side (bid or ask),
+    quantity of the primary token, the price ratio, and the two token accounts
+    to be credited/deducted.  An example trade request looks like "T AB 5 2" 
+    which reads "Exchange 5 A tokens to B tokens at a price ratio of 1:2"  A fulfilled trade would result in 5 A tokens
+    deducted and 10 B tokens credited to the trade initiator's token accounts.
+    Successful order requests result in an order.
+- Order
+  - The result of a successful order request.  orders are stored in
+    accounts owned by the submitter of the order request.  They can only be
+    canceled by their owner but can be used by anyone in a trade swap.  They
+    contain the same information as the order request.
+- Price spread
+  - The difference between the two matching orders. The spread is the
+    profit of the Matcher initiating the swap request.
+- Match requirements
+  - Policies that result in a successful trade swap.
+- Match request
+  - A request to fill two complementary orders (bid/ask), resulting if successful,
+    in a trade being created.
+- Trade
+  - A successful trade is created from two matching orders that meet
+    swap requirements which are submitted in a Match Request by a Matcher and
+    executed by the exchange. A trade may not wholly satisfy one or both of the
+    orders in which case the orders are adjusted appropriately. Upon execution,
+    tokens are distributed to the traders' accounts and any overlap or 
+    "negative spread" between orders is deposited into the Matcher's profit
+    account.  All successful trades are recorded in the data of a new solana 
+    account for posterity.
+- Investor
+  - Individual investors who hold a number of tokens and wish to trade them on
+    the exchange.  Investors operate as Solana thin clients who own a set of
+    accounts containing tokens and/or order requests.  Investors post
+    transactions to the exchange in order to request tokens and post or cancel
+    order requests.
+- Matcher
+  - An agent who facilitates trading between investors.  Matchers operate as
+    Solana thin clients who monitor all the orders looking for a trade
+    match.  Once found, the Matcher issues a swap request to the exchange.
+    Matchers are the engine of the exchange and are rewarded for their efforts by
+    accumulating the price spreads of the swaps they initiate.  Matchers also
+    provide current bid/ask price and OHLCV (Open, High, Low, Close, Volume)
+    information on demand via a public network port.
+- Transaction fees
+  - Solana transaction fees are paid for by the transaction submitters who are
+    the Investors and Matchers.
+
+## Exchange startup
+
+The exchange is up and running when it reaches a state where it can take
+investors' trades and Matchers' match requests.  To achieve this state the
+following must occur in order:
+
+- Start the Solana blockchain
+- Start the  thin-client
+- The Matcher subscribes to change notifications for all the accounts owned by
+  the exchange program id.  The subscription is managed via Solana's JSON RPC
+  interface.
+- The Matcher starts responding to queries for bid/ask price and OHLCV
+
+The Matcher responding successfully to price and OHLCV requests is the signal to
+the investors that trades submitted after that point will be analyzed.  <!--This
+is not ideal, and instead investors should be able to submit trades at any time,
+and the Matcher could come and go without missing a trade.  One way to achieve
+this is for the Matcher to read the current state of all accounts looking for all
+open orders.-->
+
+Investors will initially query the exchange to discover their current balance
+for each type of token.  If the investor does not already have an account for
+each type of token, they will submit account requests.  Matcher as well will
+request accounts to hold the tokens they earn by initiating trade swaps.
+
+```rust
+/// Supported token types
+pub enum Token {
+    A,
+    B,
+    C,
+    D,
+}
+
+/// Supported token pairs
+pub enum TokenPair {
+    AB,
+    AC,
+    AD,
+    BC,
+    BD,
+    CD,
+}
+
+pub enum ExchangeInstruction {
+    /// New token account
+    /// key 0 - Signer
+    /// key 1 - New token account
+    AccountRequest,
+}
+
+/// Token accounts are populated with this structure
+pub struct TokenAccountInfo {
+    /// Investor who owns this account
+    pub owner: Pubkey,
+    /// Current number of tokens this account holds
+    pub tokens: Tokens,
+}
+```
+
+For this demo investors or Matcher can request more tokens from the exchange at
+any time by submitting token requests. In non-demos, an exchange of this type
+would provide another way to exchange a 3rd party asset into tokens.
+
+To request tokens, investors submit transfer requests:
+
+```rust
+pub enum ExchangeInstruction {
+    /// Transfer tokens between two accounts
+    /// key 0 - Account to transfer tokens to
+    /// key 1 - Account to transfer tokens from.  This can be the exchange program itself,
+    ///         the exchange has a limitless number of tokens it can transfer.
+    TransferRequest(Token, u64),
+}
+```
+
+## Order Requests
+
+When an investor decides to exchange a token of one type for another, they
+submit a transaction to the Solana Blockchain containing an order request, which,
+if successful, is turned into an order.  orders do not expire but are
+cancellable. <!-- orders should have a timestamp to enable trade
+expiration -->  When an order is created, tokens are deducted from a token
+account and the order acts as an escrow.  The tokens are held until the
+order is fulfilled or canceled. If the direction is `To`, then the number
+of `tokens` are deducted from the primary account, if `From` then `tokens`
+multiplied by `price` are deducted from the secondary account.  orders are
+no longer valid when the number of `tokens` goes to zero, at which point they
+can no longer be used. <!-- Could support refilling orders, so order
+accounts are refilled rather than accumulating -->
+
+```rust
+/// Direction of the exchange between two tokens in a pair
+pub enum Direction {
+    /// Trade first token type (primary) in the pair 'To' the second
+    To,
+    /// Trade first token type in the pair 'From' the second (secondary)
+    From,
+}
+
+pub struct OrderRequestInfo {
+    /// Direction of trade
+    pub direction: Direction,
+
+    /// Token pair to trade
+    pub pair: TokenPair,
+
+    /// Number of tokens to exchange; refers to the primary or the secondary depending on the direction
+    pub tokens: u64,
+
+    /// The price ratio the primary price over the secondary price.  The primary price is fixed
+    /// and equal to the variable `SCALER`.
+    pub price: u64,
+
+    /// Token account to deposit tokens on successful swap
+    pub dst_account: Pubkey,
+}
+
+pub enum ExchangeInstruction {
+    /// order request
+    /// key 0 - Signer
+    /// key 1 - Account in which to record the swap
+    /// key 2 - Token account associated with this trade
+    TradeRequest(TradeRequestInfo),
+}
+
+/// Trade accounts are populated with this structure
+pub struct TradeOrderInfo {
+    /// Owner of the order
+    pub owner: Pubkey,
+    /// Direction of the exchange
+    pub direction: Direction,
+    /// Token pair indicating two tokens to exchange, first is primary
+    pub pair: TokenPair,
+    /// Number of tokens to exchange; primary or secondary depending on direction
+    pub tokens: u64,
+    /// Scaled price of the secondary token given the primary is equal to the scale value
+    /// If scale is 1 and price is 2 then ratio is 1:2 or 1 primary token for 2 secondary tokens
+    pub price: u64,
+    /// account which the tokens were source from.  The trade account holds the tokens in escrow
+    /// until either one or more part of a swap or the trade is canceled.
+    pub src_account: Pubkey,
+    /// account which the tokens the tokens will be deposited into on a successful trade
+    pub dst_account: Pubkey,
+}
+```
+
+## Order cancellations
+
+An investor may cancel a trade at anytime, but only trades they own.  If the
+cancellation is successful, any tokens held in escrow are returned to the
+account from which they came.
+
+```rust
+pub enum ExchangeInstruction {
+    /// order cancellation
+    /// key 0 - Signer
+    /// key 1 -order to cancel
+    TradeCancellation,
+}
+```
+
+## Trade swaps
+
+The Matcher is monitoring the accounts assigned to the exchange program and
+building a trade-order table.  The order table is used to identify
+matching orders which could be fulfilled.  When a match is found the
+Matcher should issue a swap request.  Swap requests may not satisfy the entirety
+of either order, but the exchange will greedily fulfill it.  Any leftover tokens
+in either account will keep the order valid for further swap requests in
+the future.
+
+Matching orders are defined by the following swap requirements:
+
+- Opposite polarity (one `To` and one `From`)
+- Operate on the same token pair
+- The price ratio of the `From` order is greater than or equal to the `To` order
+- There are sufficient tokens to perform the trade
+
+Orders can be written in the following format:
+
+`investor direction pair quantity price-ratio`
+
+For example:
+
+- `1 T AB 2 1`
+  - Investor 1 wishes to exchange 2 A tokens to B tokens at a ratio of 1 A to 1
+    B
+- `2 F AC 6 1.2`
+  - Investor 2 wishes to exchange A tokens from 6 B tokens at a ratio of 1 A
+    from 1.2 B
+
+An order table could look something like the following. Notice how the columns
+are sorted low to high and high to low, respectively.  Prices are dramatic and
+whole for clarity.
+
+|Row| To          | From       |
+|---|-------------|------------|
+| 1 | 1 T AB 2 4  | 2 F AB 2 8 |
+| 2 | 1 T AB 1 4  | 2 F AB 2 8 |
+| 3 | 1 T AB 6 6  | 2 F AB 2 7 |
+| 4 | 1 T AB 2 8  | 2 F AB 3 6 |
+| 5 | 1 T AB 2 10 | 2 F AB 1 5 |
+
+As part of a successful swap request, the exchange will credit tokens to the
+Matcher's account equal to the difference in the price ratios or the two orders.
+These tokens are considered the Matcher's profit for initiating the trade.
+
+The Matcher would initiate the following swap on the order table above:
+
+  - Row 1, To:   Investor 1 trades 2 A tokens to 8 B tokens
+  - Row 1, From: Investor 2 trades 2 A tokens from 8 B tokens
+  - Matcher takes 8 B tokens as profit
+
+Both row 1 trades are fully realized, table becomes:
+
+|Row| To          | From       |
+|---|-------------|------------|
+| 1 | 1 T AB 1 4  | 2 F AB 2 8 |
+| 2 | 1 T AB 6 6  | 2 F AB 2 7 |
+| 3 | 1 T AB 2 8  | 2 F AB 3 6 |
+| 4 | 1 T AB 2 10 | 2 F AB 1 5 |
+
+The Matcher would initiate the following swap:
+
+  - Row 1, To:   Investor 1 trades 1 A token to 4 B tokens
+  - Row 1, From: Investor 2 trades 1 A token from 4 B tokens
+  - Matcher takes 4 B tokens as profit
+
+Row 1 From is not fully realized, table becomes:
+
+|Row| To          | From       |
+|---|-------------|------------|
+| 1 | 1 T AB 6 6  | 2 F AB 1 8 |
+| 2 | 1 T AB 2 8  | 2 F AB 2 7 |
+| 3 | 1 T AB 2 10 | 2 F AB 3 6 |
+| 4 |             | 2 F AB 1 5 |
+
+The Matcher would initiate the following swap:
+
+  - Row 1, To:   Investor 1 trades 1 A token to 6 B tokens
+  - Row 1, From: Investor 2 trades 1 A token from 6 B tokens
+  - Matcher takes 2 B tokens as profit
+
+Row 1 To is now fully realized, table becomes:
+
+|Row| To          | From       |
+|---|-------------|------------|
+| 1 | 1 T AB 5 6  | 2 F AB 2 7 |
+| 2 | 1 T AB 2 8  | 2 F AB 3 5 |
+| 3 | 1 T AB 2 10 | 2 F AB 1 5 |
+
+The Matcher would initiate the following last swap:
+
+  - Row 1, To:   Investor 1 trades 2 A token to 12 B tokens
+  - Row 1, From: Investor 2 trades 2 A token from 12 B tokens
+  - Matcher takes 4 B tokens as profit
+
+Table becomes:
+
+|Row| To          | From       |
+|---|-------------|------------|
+| 1 | 1 T AB 3 6  | 2 F AB 3 5 |
+| 2 | 1 T AB 2 8  | 2 F AB 1 5 |
+| 3 | 1 T AB 2 10 |            |
+
+At this point the lowest To's price is larger than the largest From's price so
+no more swaps would be initiated until new orders came in.
+
+```rust
+pub enum ExchangeInstruction {
+    /// Trade swap request
+    /// key 0 - Signer
+    /// key 1 - Account in which to record the swap
+    /// key 2 - 'To' order
+    /// key 3 - `From` order
+    /// key 4 - Token account associated with the To Trade
+    /// key 5 - Token account associated with From trade
+    /// key 6 - Token account in which to deposit the Matcher profit from the swap.
+    SwapRequest,
+}
+
+/// Swap accounts are populated with this structure
+pub struct TradeSwapInfo {
+    /// Pair swapped
+    pub pair: TokenPair,
+    /// `To` order
+    pub to_trade_order: Pubkey,
+    /// `From` order
+    pub from_trade_order: Pubkey,
+    /// Number of primary tokens exchanged
+    pub primary_tokens: u64,
+    /// Price the primary tokens were exchanged for
+    pub primary_price: u64,
+    /// Number of secondary tokens exchanged
+    pub secondary_tokens: u64,
+    /// Price the secondary tokens were exchanged for
+    pub secondary_price: u64,
+}
+```
+
+## Exchange program operations
+
+Putting all the commands together from above, the following operations will be
+supported by the on-chain exchange program:
+
+```rust
+pub enum ExchangeInstruction {
+    /// New token account
+    /// key 0 - Signer
+    /// key 1 - New token account
+    AccountRequest,
+
+    /// Transfer tokens between two accounts
+    /// key 0 - Account to transfer tokens to
+    /// key 1 - Account to transfer tokens from.  This can be the exchange program itself,
+    ///         the exchange has a limitless number of tokens it can transfer.
+    TransferRequest(Token, u64),
+
+    /// order request
+    /// key 0 - Signer
+    /// key 1 - Account in which to record the swap
+    /// key 2 - Token account associated with this trade
+    TradeRequest(TradeRequestInfo),
+
+    /// order cancellation
+    /// key 0 - Signer
+    /// key 1 -order to cancel
+    TradeCancellation,
+
+    /// Trade swap request
+    /// key 0 - Signer
+    /// key 1 - Account in which to record the swap
+    /// key 2 - 'To' order
+    /// key 3 - `From` order
+    /// key 4 - Token account associated with the To Trade
+    /// key 5 - Token account associated with From trade
+    /// key 6 - Token account in which to deposit the Matcher profit from the swap.
+    SwapRequest,
+}
+```
+
+## Quotes and OHLCV
+
+The Matcher will provide current bid/ask price quotes based on trade actively and
+also provide OHLCV based on some time window.  The details of how the bid/ask
+price quotes are calculated are yet to be decided.
+
+## Investor strategies
+
+To make a compelling demo, the investors needs to provide interesting trade
+behavior.  Something as simple as a randomly twiddled baseline would be a
+minimum starting point.
+
+## Running the exchange
+
+The exchange bench posts trades and swaps matches as fast as it can.  
+
+You might want to bump the duration up
+to 60 seconds and the batch size to 1000 for better numbers.  You can modify those
+in client_demo/src/demo.rs::test_exchange_local_cluster.
+
+The following command runs the bench:
+
+```bash
+$ RUST_LOG=solana_bench_exchange=info cargo test --release -- --nocapture test_exchange_local_cluster
+```
+
+To also see the cluster messages:
+
+```bash
+$ RUST_LOG=solana_bench_exchange=info,solana=info cargo test --release -- --nocapture test_exchange_local_cluster
+```

bench-exchange/src/bench.rs

@@ -0,0 +1,971 @@
+#![allow(clippy::useless_attribute)]
+
+use crate::order_book::*;
+use itertools::izip;
+use log::*;
+use rand::{thread_rng, Rng};
+use rayon::prelude::*;
+use solana_client::perf_utils::{sample_txs, SampleStats};
+use solana_core::gen_keys::GenKeys;
+use solana_drone::drone::request_airdrop_transaction;
+use solana_exchange_api::exchange_instruction;
+use solana_exchange_api::exchange_state::*;
+use solana_exchange_api::id;
+use solana_genesis::PrimordialAccountDetails;
+use solana_metrics::datapoint_info;
+use solana_sdk::client::Client;
+use solana_sdk::client::SyncClient;
+use solana_sdk::pubkey::Pubkey;
+use solana_sdk::signature::{Keypair, KeypairUtil};
+use solana_sdk::timing::{duration_as_ms, duration_as_s};
+use solana_sdk::transaction::Transaction;
+use solana_sdk::{system_instruction, system_program};
+use std::cmp;
+use std::collections::{HashMap, VecDeque};
+use std::fs::File;
+use std::io::prelude::*;
+use std::mem;
+use std::net::SocketAddr;
+use std::path::Path;
+use std::process::exit;
+use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
+use std::sync::mpsc::{channel, Receiver, Sender};
+use std::sync::{Arc, RwLock};
+use std::thread::{sleep, Builder};
+use std::time::{Duration, Instant};
+
+// TODO Chunk length as specified results in a bunch of failures, divide by 10 helps...
+// Assume 4MB network buffers, and 512 byte packets
+const FUND_CHUNK_LEN: usize = 4 * 1024 * 1024 / 512;
+
+// Maximum system transfers per transaction
+const MAX_TRANSFERS_PER_TX: u64 = 4;
+
+pub type SharedTransactions = Arc<RwLock<VecDeque<Vec<Transaction>>>>;
+
+pub struct Config {
+    pub identity: Keypair,
+    pub threads: usize,
+    pub duration: Duration,
+    pub transfer_delay: u64,
+    pub fund_amount: u64,
+    pub batch_size: usize,
+    pub chunk_size: usize,
+    pub account_groups: usize,
+    pub client_ids_and_stake_file: String,
+    pub read_from_client_file: bool,
+}
+
+impl Default for Config {
+    fn default() -> Self {
+        Self {
+            identity: Keypair::new(),
+            threads: 4,
+            duration: Duration::new(u64::max_value(), 0),
+            transfer_delay: 0,
+            fund_amount: 100_000,
+            batch_size: 10,
+            chunk_size: 10,
+            account_groups: 100,
+            client_ids_and_stake_file: String::new(),
+            read_from_client_file: false,
+        }
+    }
+}
+
+pub fn create_client_accounts_file(
+    client_ids_and_stake_file: &str,
+    batch_size: usize,
+    account_groups: usize,
+    fund_amount: u64,
+) {
+    let accounts_in_groups = batch_size * account_groups;
+    const NUM_KEYPAIR_GROUPS: u64 = 2;
+    let total_keys = accounts_in_groups as u64 * NUM_KEYPAIR_GROUPS;
+
+    let keypairs = generate_keypairs(total_keys);
+
+    let mut accounts = HashMap::new();
+    keypairs.iter().for_each(|keypair| {
+        accounts.insert(
+            serde_json::to_string(&keypair.to_bytes().to_vec()).unwrap(),
+            PrimordialAccountDetails {
+                balance: fund_amount,
+                executable: false,
+                owner: system_program::id().to_string(),
+                data: String::new(),
+            },
+        );
+    });
+
+    let serialized = serde_yaml::to_string(&accounts).unwrap();
+    let path = Path::new(&client_ids_and_stake_file);
+    let mut file = File::create(path).unwrap();
+    file.write_all(&serialized.into_bytes()).unwrap();
+}
+
+pub fn do_bench_exchange<T>(clients: Vec<T>, config: Config)
+where
+    T: 'static + Client + Send + Sync,
+{
+    let Config {
+        identity,
+        threads,
+        duration,
+        transfer_delay,
+        fund_amount,
+        batch_size,
+        chunk_size,
+        account_groups,
+        client_ids_and_stake_file,
+        read_from_client_file,
+    } = config;
+
+    info!(
+        "Exchange client: threads {} duration {} fund_amount {}",
+        threads,
+        duration_as_s(&duration),
+        fund_amount
+    );
+    info!(
+        "Exchange client: transfer delay {} batch size {} chunk size {}",
+        transfer_delay, batch_size, chunk_size
+    );
+
+    let accounts_in_groups = batch_size * account_groups;
+    const NUM_KEYPAIR_GROUPS: u64 = 2;
+    let total_keys = accounts_in_groups as u64 * NUM_KEYPAIR_GROUPS;
+
+    let mut signer_keypairs = if read_from_client_file {
+        let path = Path::new(&client_ids_and_stake_file);
+        let file = File::open(path).unwrap();
+
+        let accounts: HashMap<String, PrimordialAccountDetails> =
+            serde_yaml::from_reader(file).unwrap();
+        accounts
+            .into_iter()
+            .map(|(keypair, _)| {
+                let bytes: Vec<u8> = serde_json::from_str(keypair.as_str()).unwrap();
+                Keypair::from_bytes(&bytes).unwrap()
+            })
+            .collect()
+    } else {
+        info!("Generating {:?} signer keys", total_keys);
+        generate_keypairs(total_keys)
+    };
+
+    let trader_signers: Vec<_> = signer_keypairs
+        .drain(0..accounts_in_groups)
+        .map(Arc::new)
+        .collect();
+    let swapper_signers: Vec<_> = signer_keypairs
+        .drain(0..accounts_in_groups)
+        .map(Arc::new)
+        .collect();
+
+    let clients: Vec<_> = clients.into_iter().map(Arc::new).collect();
+    let client = clients[0].as_ref();
+
+    if !read_from_client_file {
+        info!("Fund trader accounts");
+        fund_keys(client, &identity, &trader_signers, fund_amount);
+        info!("Fund swapper accounts");
+        fund_keys(client, &identity, &swapper_signers, fund_amount);
+    }
+
+    info!("Generating {:?} account keys", total_keys);
+    let mut account_keypairs = generate_keypairs(total_keys);
+    let src_pubkeys: Vec<_> = account_keypairs
+        .drain(0..accounts_in_groups)
+        .map(|keypair| keypair.pubkey())
+        .collect();
+    let profit_pubkeys: Vec<_> = account_keypairs
+        .drain(0..accounts_in_groups)
+        .map(|keypair| keypair.pubkey())
+        .collect();
+
+    info!("Create {:?} source token accounts", src_pubkeys.len());
+    create_token_accounts(client, &trader_signers, &src_pubkeys);
+    info!("Create {:?} profit token accounts", profit_pubkeys.len());
+    create_token_accounts(client, &swapper_signers, &profit_pubkeys);
+
+    // Collect the max transaction rate and total tx count seen (single node only)
+    let sample_stats = Arc::new(RwLock::new(Vec::new()));
+    let sample_period = 1; // in seconds
+    info!("Sampling clients for tps every {} s", sample_period);
+    info!(
+        "Requesting and swapping trades with {} ms delay per thread...",
+        transfer_delay
+    );
+
+    let exit_signal = Arc::new(AtomicBool::new(false));
+    let shared_txs: SharedTransactions = Arc::new(RwLock::new(VecDeque::new()));
+    let total_txs_sent_count = Arc::new(AtomicUsize::new(0));
+    let s_threads: Vec<_> = (0..threads)
+        .map(|_| {
+            let exit_signal = exit_signal.clone();
+            let shared_txs = shared_txs.clone();
+            let total_txs_sent_count = total_txs_sent_count.clone();
+            let client = clients[0].clone();
+            Builder::new()
+                .name("solana-exchange-transfer".to_string())
+                .spawn(move || {
+                    do_tx_transfers(&exit_signal, &shared_txs, &total_txs_sent_count, &client)
+                })
+                .unwrap()
+        })
+        .collect();
+
+    trace!("Start swapper thread");
+    let (swapper_sender, swapper_receiver) = channel();
+    let swapper_thread = {
+        let exit_signal = exit_signal.clone();
+        let shared_txs = shared_txs.clone();
+        let client = clients[0].clone();
+        Builder::new()
+            .name("solana-exchange-swapper".to_string())
+            .spawn(move || {
+                swapper(
+                    &exit_signal,
+                    &swapper_receiver,
+                    &shared_txs,
+                    &swapper_signers,
+                    &profit_pubkeys,
+                    transfer_delay,
+                    batch_size,
+                    chunk_size,
+                    account_groups,
+                    &client,
+                )
+            })
+            .unwrap()
+    };
+
+    trace!("Start trader thread");
+    let trader_thread = {
+        let exit_signal = exit_signal.clone();
+        let shared_txs = shared_txs.clone();
+        let client = clients[0].clone();
+        Builder::new()
+            .name("solana-exchange-trader".to_string())
+            .spawn(move || {
+                trader(
+                    &exit_signal,
+                    &swapper_sender,
+                    &shared_txs,
+                    &trader_signers,
+                    &src_pubkeys,
+                    transfer_delay,
+                    batch_size,
+                    chunk_size,
+                    account_groups,
+                    &client,
+                )
+            })
+            .unwrap()
+    };
+
+    let sample_threads: Vec<_> = clients
+        .iter()
+        .map(|client| {
+            let exit_signal = exit_signal.clone();
+            let sample_stats = sample_stats.clone();
+            let client = client.clone();
+            Builder::new()
+                .name("solana-exchange-sample".to_string())
+                .spawn(move || sample_txs(&exit_signal, &sample_stats, sample_period, &client))
+                .unwrap()
+        })
+        .collect();
+
+    sleep(duration);
+
+    info!("Stopping threads");
+    exit_signal.store(true, Ordering::Relaxed);
+    info!("Wait for trader thread");
+    let _ = trader_thread.join();
+    info!("Waiting for swapper thread");
+    let _ = swapper_thread.join();
+    info!("Wait for tx threads");
+    for t in s_threads {
+        let _ = t.join();
+    }
+    info!("Wait for sample threads");
+    for t in sample_threads {
+        let _ = t.join();
+    }
+
+    compute_and_report_stats(
+        &sample_stats,
+        total_txs_sent_count.load(Ordering::Relaxed) as u64,
+    );
+}
+
+fn do_tx_transfers<T>(
+    exit_signal: &Arc<AtomicBool>,
+    shared_txs: &SharedTransactions,
+    total_txs_sent_count: &Arc<AtomicUsize>,
+    client: &Arc<T>,
+) where
+    T: Client,
+{
+    loop {
+        let txs;
+        {
+            let mut shared_txs_wl = shared_txs.write().unwrap();
+            txs = shared_txs_wl.pop_front();
+        }
+        if let Some(txs0) = txs {
+            let n = txs0.len();
+
+            let now = Instant::now();
+            for tx in txs0 {
+                client.async_send_transaction(tx).expect("Transfer");
+            }
+            let duration = now.elapsed();
+
+            total_txs_sent_count.fetch_add(n, Ordering::Relaxed);
+            datapoint_info!(
+                "bench-exchange-do_tx_transfers",
+                ("duration", duration_as_ms(&duration), i64),
+                ("count", n, i64)
+            );
+        }
+        if exit_signal.load(Ordering::Relaxed) {
+            return;
+        }
+    }
+}
+
+struct TradeInfo {
+    trade_account: Pubkey,
+    order_info: OrderInfo,
+}
+#[allow(clippy::too_many_arguments)]
+fn swapper<T>(
+    exit_signal: &Arc<AtomicBool>,
+    receiver: &Receiver<Vec<TradeInfo>>,
+    shared_txs: &SharedTransactions,
+    signers: &[Arc<Keypair>],
+    profit_pubkeys: &[Pubkey],
+    transfer_delay: u64,
+    batch_size: usize,
+    chunk_size: usize,
+    account_groups: usize,
+    client: &Arc<T>,
+) where
+    T: Client,
+{
+    let mut order_book = OrderBook::default();
+    let mut account_group: usize = 0;
+
+    let mut txs = 0;
+    let mut total_txs = 0;
+    let mut now = Instant::now();
+    let start_time = now;
+    let mut total_elapsed = start_time.elapsed();
+
+    // Chunks may have been dropped and we don't want to wait a long time
+    // for each time, Back-off each time we fail to confirm a chunk
+    const CHECK_TX_TIMEOUT_MAX_MS: u64 = 15000;
+    const CHECK_TX_DELAY_MS: u64 = 100;
+    let mut max_tries = CHECK_TX_TIMEOUT_MAX_MS / CHECK_TX_DELAY_MS;
+
+    // If we dump too many chunks maybe we are just waiting on a back-log
+    // rather than a series of dropped packets, reset to max waits
+    const MAX_DUMPS: u64 = 50;
+    let mut dumps = 0;
+
+    'outer: loop {
+        if let Ok(trade_infos) = receiver.try_recv() {
+            let mut tries = 0;
+            let mut trade_index = 0;
+            while client
+                .get_balance(&trade_infos[trade_index].trade_account)
+                .unwrap_or(0)
+                == 0
+            {
+                tries += 1;
+                if tries >= max_tries {
+                    if exit_signal.load(Ordering::Relaxed) {
+                        break 'outer;
+                    }
+                    error!("Give up and dump batch");
+                    if dumps >= MAX_DUMPS {
+                        error!("Max batches dumped, reset wait back-off");
+                        max_tries = CHECK_TX_TIMEOUT_MAX_MS / CHECK_TX_DELAY_MS;
+                        dumps = 0;
+                    } else {
+                        dumps += 1;
+                        max_tries /= 2;
+                    }
+                    continue 'outer;
+                }
+                debug!("{} waiting for trades batch to clear", tries);
+                sleep(Duration::from_millis(CHECK_TX_DELAY_MS));
+                trade_index = thread_rng().gen_range(0, trade_infos.len());
+            }
+            max_tries = CHECK_TX_TIMEOUT_MAX_MS / CHECK_TX_DELAY_MS;
+            dumps = 0;
+
+            trade_infos.iter().for_each(|info| {
+                order_book
+                    .push(info.trade_account, info.order_info)
+                    .expect("Failed to push to order_book");
+            });
+            let mut swaps = Vec::new();
+            while let Some((to, from)) = order_book.pop() {
+                swaps.push((to, from));
+                if swaps.len() >= batch_size {
+                    break;
+                }
+            }
+            let swaps_size = swaps.len();
+
+            let mut to_swap = vec![];
+            let start = account_group * swaps_size as usize;
+            let end = account_group * swaps_size as usize + batch_size as usize;
+            for (signer, swap, profit) in izip!(
+                signers[start..end].iter(),
+                swaps,
+                profit_pubkeys[start..end].iter(),
+            ) {
+                to_swap.push((signer, swap, profit));
+            }
+            account_group = (account_group + 1) % account_groups as usize;
+
+            let (blockhash, _fee_calculator) = client
+                .get_recent_blockhash()
+                .expect("Failed to get blockhash");
+            let to_swap_txs: Vec<_> = to_swap
+                .par_iter()
+                .map(|(signer, swap, profit)| {
+                    let s: &Keypair = &signer;
+                    let owner = &signer.pubkey();
+                    Transaction::new_signed_instructions(
+                        &[s],
+                        vec![exchange_instruction::swap_request(
+                            owner,
+                            &swap.0.pubkey,
+                            &swap.1.pubkey,
+                            &profit,
+                        )],
+                        blockhash,
+                    )
+                })
+                .collect();
+
+            txs += to_swap_txs.len() as u64;
+            total_txs += to_swap_txs.len() as u64;
+            total_elapsed = start_time.elapsed();
+            let duration = now.elapsed();
+            if duration_as_s(&duration) >= 1_f32 {
+                now = Instant::now();
+                let tps = txs as f32 / duration_as_s(&duration);
+                info!(
+                    "Swapper {:9.2} TPS, Transactions: {:6}, Total transactions: {} over {} s",
+                    tps,
+                    txs,
+                    total_txs,
+                    total_elapsed.as_secs(),
+                );
+                txs = 0;
+            }
+
+            datapoint_info!("bench-exchange-swaps", ("count", to_swap_txs.len(), i64));
+
+            let chunks: Vec<_> = to_swap_txs.chunks(chunk_size).collect();
+            {
+                let mut shared_txs_wl = shared_txs.write().unwrap();
+                for chunk in chunks {
+                    shared_txs_wl.push_back(chunk.to_vec());
+                }
+            }
+            // Throttle the swapper so it doesn't try to catchup unbridled
+            sleep(Duration::from_millis(transfer_delay / 2));
+        }
+
+        if exit_signal.load(Ordering::Relaxed) {
+            break 'outer;
+        }
+    }
+    info!(
+        "Swapper sent {} at {:9.2} TPS",
+        total_txs,
+        total_txs as f32 / duration_as_s(&total_elapsed)
+    );
+    assert_eq!(
+        order_book.get_num_outstanding().0 + order_book.get_num_outstanding().1,
+        0
+    );
+}
+
+#[allow(clippy::too_many_arguments)]
+fn trader<T>(
+    exit_signal: &Arc<AtomicBool>,
+    sender: &Sender<Vec<TradeInfo>>,
+    shared_txs: &SharedTransactions,
+    signers: &[Arc<Keypair>],
+    srcs: &[Pubkey],
+    transfer_delay: u64,
+    batch_size: usize,
+    chunk_size: usize,
+    account_groups: usize,
+    client: &Arc<T>,
+) where
+    T: Client,
+{
+    // TODO Hard coded for now
+    let pair = AssetPair::default();
+    let tokens = 1;
+    let price = 1000;
+    let mut account_group: usize = 0;
+
+    let mut txs = 0;
+    let mut total_txs = 0;
+    let mut now = Instant::now();
+    let start_time = now;
+    let mut total_elapsed = start_time.elapsed();
+
+    loop {
+        let trade_keys = generate_keypairs(batch_size as u64);
+
+        let mut trades = vec![];
+        let mut trade_infos = vec![];
+        let start = account_group * batch_size as usize;
+        let end = account_group * batch_size as usize + batch_size as usize;
+        let mut side = OrderSide::Ask;
+        for (signer, trade, src) in izip!(
+            signers[start..end].iter(),
+            trade_keys,
+            srcs[start..end].iter(),
+        ) {
+            side = if side == OrderSide::Ask {
+                OrderSide::Bid
+            } else {
+                OrderSide::Ask
+            };
+            let order_info = OrderInfo {
+                /// Owner of the trade order
+                owner: Pubkey::default(), // don't care
+                side,
+                pair,
+                tokens,
+                price,
+                tokens_settled: 0,
+            };
+            trade_infos.push(TradeInfo {
+                trade_account: trade.pubkey(),
+                order_info,
+            });
+            trades.push((signer, trade.pubkey(), side, src));
+        }
+        account_group = (account_group + 1) % account_groups as usize;
+
+        let (blockhash, _fee_calculator) = client
+            .get_recent_blockhash()
+            .expect("Failed to get blockhash");
+
+        trades.chunks(chunk_size).for_each(|chunk| {
+            let trades_txs: Vec<_> = chunk
+                .par_iter()
+                .map(|(signer, trade, side, src)| {
+                    let s: &Keypair = &signer;
+                    let owner = &signer.pubkey();
+                    let space = mem::size_of::<ExchangeState>() as u64;
+                    Transaction::new_signed_instructions(
+                        &[s],
+                        vec![
+                            system_instruction::create_account(owner, trade, 1, space, &id()),
+                            exchange_instruction::trade_request(
+                                owner, trade, *side, pair, tokens, price, src,
+                            ),
+                        ],
+                        blockhash,
+                    )
+                })
+                .collect();
+
+            {
+                txs += chunk_size as u64;
+                total_txs += chunk_size as u64;
+                total_elapsed = start_time.elapsed();
+                let duration = now.elapsed();
+                if duration_as_s(&duration) >= 1_f32 {
+                    now = Instant::now();
+                    let tps = txs as f32 / duration_as_s(&duration);
+                    info!(
+                        "Trader  {:9.2} TPS, Transactions: {:6}, Total transactions: {} over {} s",
+                        tps,
+                        txs,
+                        total_txs,
+                        total_elapsed.as_secs(),
+                    );
+                    txs = 0;
+                }
+
+                datapoint_info!("bench-exchange-trades", ("count", trades_txs.len(), i64));
+
+                {
+                    let mut shared_txs_wl = shared_txs
+                        .write()
+                        .expect("Failed to send tx to transfer threads");
+                    shared_txs_wl.push_back(trades_txs);
+                }
+            }
+            if transfer_delay > 0 {
+                sleep(Duration::from_millis(transfer_delay));
+            }
+        });
+
+        if exit_signal.load(Ordering::Relaxed) {
+            info!(
+                "Trader sent {} at {:9.2} TPS",
+                total_txs,
+                total_txs as f32 / duration_as_s(&total_elapsed)
+            );
+            return;
+        }
+
+        // TODO chunk the trade infos and send them when the batch is sent
+        sender
+            .send(trade_infos)
+            .expect("Failed to send trades to swapper");
+    }
+}
+
+fn verify_transfer<T>(sync_client: &T, tx: &Transaction) -> bool
+where
+    T: SyncClient + ?Sized,
+{
+    for s in &tx.signatures {
+        if let Ok(Some(r)) = sync_client.get_signature_status(s) {
+            match r {
+                Ok(_) => {
+                    return true;
+                }
+                Err(e) => {
+                    info!("error: {:?}", e);
+                }
+            }
+        }
+    }
+    false
+}
+
+fn verify_funding_transfer<T: SyncClient + ?Sized>(
+    client: &T,
+    tx: &Transaction,
+    amount: u64,
+) -> bool {
+    for a in &tx.message().account_keys[1..] {
+        if client.get_balance(a).unwrap_or(0) >= amount {
+            return true;
+        }
+    }
+
+    false
+}
+
+pub fn fund_keys(client: &dyn Client, source: &Keypair, dests: &[Arc<Keypair>], lamports: u64) {
+    let total = lamports * (dests.len() as u64 + 1);
+    let mut funded: Vec<(&Keypair, u64)> = vec![(source, total)];
+    let mut notfunded: Vec<&Arc<Keypair>> = dests.iter().collect();
+
+    info!(
+        "  Funding {} keys with {} lamports each",
+        dests.len(),
+        lamports
+    );
+    while !notfunded.is_empty() {
+        if funded.is_empty() {
+            panic!("No funded accounts left to fund remaining");
+        }
+        let mut new_funded: Vec<(&Keypair, u64)> = vec![];
+        let mut to_fund = vec![];
+        debug!("  Creating from... {}", funded.len());
+        for f in &mut funded {
+            let max_units = cmp::min(
+                cmp::min(notfunded.len() as u64, MAX_TRANSFERS_PER_TX),
+                (f.1 - lamports) / lamports,
+            );
+            if max_units == 0 {
+                continue;
+            }
+            let per_unit = ((f.1 - lamports) / lamports / max_units) * lamports;
+            f.1 -= per_unit * max_units;
+            let start = notfunded.len() - max_units as usize;
+            let moves: Vec<_> = notfunded[start..]
+                .iter()
+                .map(|k| (k.pubkey(), per_unit))
+                .collect();
+            notfunded[start..]
+                .iter()
+                .for_each(|k| new_funded.push((k, per_unit)));
+            notfunded.truncate(start);
+            if !moves.is_empty() {
+                to_fund.push((f.0, moves));
+            }
+        }
+
+        to_fund.chunks(FUND_CHUNK_LEN).for_each(|chunk| {
+            #[allow(clippy::clone_double_ref)] // sigh
+            let mut to_fund_txs: Vec<_> = chunk
+                .par_iter()
+                .map(|(k, m)| {
+                    (
+                        k.clone(),
+                        Transaction::new_unsigned_instructions(system_instruction::transfer_many(
+                            &k.pubkey(),
+                            &m,
+                        )),
+                    )
+                })
+                .collect();
+
+            let mut retries = 0;
+            let amount = chunk[0].1[0].1;
+            while !to_fund_txs.is_empty() {
+                let receivers = to_fund_txs
+                    .iter()
+                    .fold(0, |len, (_, tx)| len + tx.message().instructions.len());
+
+                debug!(
+                    "  {} to {} in {} txs",
+                    if retries == 0 {
+                        "  Transferring"
+                    } else {
+                        "  Retrying"
+                    },
+                    receivers,
+                    to_fund_txs.len(),
+                );
+
+                let (blockhash, _fee_calculator) =
+                    client.get_recent_blockhash().expect("blockhash");
+                to_fund_txs.par_iter_mut().for_each(|(k, tx)| {
+                    tx.sign(&[*k], blockhash);
+                });
+                to_fund_txs.iter().for_each(|(_, tx)| {
+                    client.async_send_transaction(tx.clone()).expect("transfer");
+                });
+
+                let mut waits = 0;
+                loop {
+                    sleep(Duration::from_millis(200));
+                    to_fund_txs.retain(|(_, tx)| !verify_funding_transfer(client, &tx, amount));
+                    if to_fund_txs.is_empty() {
+                        break;
+                    }
+                    debug!(
+                        "    {} transactions outstanding, {:?} waits",
+                        to_fund_txs.len(),
+                        waits
+                    );
+                    waits += 1;
+                    if waits >= 5 {
+                        break;
+                    }
+                }
+                if !to_fund_txs.is_empty() {
+                    retries += 1;
+                    debug!("  Retry {:?}", retries);
+                    if retries >= 10 {
+                        error!("fund_keys: Too many retries ({}), give up", retries);
+                        exit(1);
+                    }
+                }
+            }
+        });
+        funded.append(&mut new_funded);
+        funded.retain(|(k, b)| {
+            client.get_balance(&k.pubkey()).unwrap_or(0) > lamports && *b > lamports
+        });
+        debug!("  Funded: {} left: {}", funded.len(), notfunded.len());
+    }
+}
+
+pub fn create_token_accounts(client: &dyn Client, signers: &[Arc<Keypair>], accounts: &[Pubkey]) {
+    let mut notfunded: Vec<(&Arc<Keypair>, &Pubkey)> = signers.iter().zip(accounts).collect();
+
+    while !notfunded.is_empty() {
+        notfunded.chunks(FUND_CHUNK_LEN).for_each(|chunk| {
+            let mut to_create_txs: Vec<_> = chunk
+                .par_iter()
+                .map(|(signer, new)| {
+                    let owner_pubkey = &signer.pubkey();
+                    let space = mem::size_of::<ExchangeState>() as u64;
+                    let create_ix =
+                        system_instruction::create_account(owner_pubkey, new, 1, space, &id());
+                    let request_ix = exchange_instruction::account_request(owner_pubkey, new);
+                    (
+                        signer,
+                        Transaction::new_unsigned_instructions(vec![create_ix, request_ix]),
+                    )
+                })
+                .collect();
+
+            let accounts = to_create_txs
+                .iter()
+                .fold(0, |len, (_, tx)| len + tx.message().instructions.len() / 2);
+
+            debug!(
+                "  Creating {} accounts in {} txs",
+                accounts,
+                to_create_txs.len(),
+            );
+
+            let mut retries = 0;
+            while !to_create_txs.is_empty() {
+                let (blockhash, _fee_calculator) = client
+                    .get_recent_blockhash()
+                    .expect("Failed to get blockhash");
+                to_create_txs.par_iter_mut().for_each(|(k, tx)| {
+                    let kp: &Keypair = k;
+                    tx.sign(&[kp], blockhash);
+                });
+                to_create_txs.iter().for_each(|(_, tx)| {
+                    client.async_send_transaction(tx.clone()).expect("transfer");
+                });
+
+                let mut waits = 0;
+                while !to_create_txs.is_empty() {
+                    sleep(Duration::from_millis(200));
+                    to_create_txs.retain(|(_, tx)| !verify_transfer(client, &tx));
+                    if to_create_txs.is_empty() {
+                        break;
+                    }
+                    debug!(
+                        "    {} transactions outstanding, waits {:?}",
+                        to_create_txs.len(),
+                        waits
+                    );
+                    waits += 1;
+                    if waits >= 5 {
+                        break;
+                    }
+                }
+
+                if !to_create_txs.is_empty() {
+                    retries += 1;
+                    debug!("  Retry {:?}", retries);
+                    if retries >= 20 {
+                        error!(
+                            "create_token_accounts: Too many retries ({}), give up",
+                            retries
+                        );
+                        exit(1);
+                    }
+                }
+            }
+        });
+
+        let mut new_notfunded: Vec<(&Arc<Keypair>, &Pubkey)> = vec![];
+        for f in &notfunded {
+            if client.get_balance(&f.1).unwrap_or(0) == 0 {
+                new_notfunded.push(*f)
+            }
+        }
+        notfunded = new_notfunded;
+        debug!("  Left: {}", notfunded.len());
+    }
+}
+
+fn compute_and_report_stats(maxes: &Arc<RwLock<Vec<(String, SampleStats)>>>, total_txs_sent: u64) {
+    let mut max_txs = 0;
+    let mut max_elapsed = Duration::new(0, 0);
+    info!("|       Max TPS | Total Transactions");
+    info!("+---------------+--------------------");
+
+    for (_sock, stats) in maxes.read().unwrap().iter() {
+        let maybe_flag = match stats.txs {
+            0 => "!!!!!",
+            _ => "",
+        };
+
+        info!("| {:13.2} | {} {}", stats.tps, stats.txs, maybe_flag);
+
+        if stats.elapsed > max_elapsed {
+            max_elapsed = stats.elapsed;
+        }
+        if stats.txs > max_txs {
+            max_txs = stats.txs;
+        }
+    }
+    info!("+---------------+--------------------");
+
+    if max_txs >= total_txs_sent {
+        info!(
+            "Warning: Average TPS might be under reported, there were no txs sent for a portion of the duration"
+        );
+        max_txs = total_txs_sent;
+    }
+    info!(
+        "{} txs outstanding when test ended (lag) ({:.2}%)",
+        total_txs_sent - max_txs,
+        (total_txs_sent - max_txs) as f64 / total_txs_sent as f64 * 100_f64
+    );
+    info!(
+        "\tAverage TPS: {:.2}",
+        max_txs as f32 / max_elapsed.as_secs() as f32
+    );
+}
+
+fn generate_keypairs(num: u64) -> Vec<Keypair> {
+    let mut seed = [0_u8; 32];
+    seed.copy_from_slice(&Keypair::new().pubkey().as_ref());
+    let mut rnd = GenKeys::new(seed);
+    rnd.gen_n_keypairs(num)
+}
+
+pub fn airdrop_lamports(client: &dyn Client, drone_addr: &SocketAddr, id: &Keypair, amount: u64) {
+    let balance = client.get_balance(&id.pubkey());
+    let balance = balance.unwrap_or(0);
+    if balance >= amount {
+        return;
+    }
+
+    let amount_to_drop = amount - balance;
+
+    info!(
+        "Airdropping {:?} lamports from {} for {}",
+        amount_to_drop,
+        drone_addr,
+        id.pubkey(),
+    );
+
+    let mut tries = 0;
+    loop {
+        let (blockhash, _fee_calculator) = client
+            .get_recent_blockhash()
+            .expect("Failed to get blockhash");
+        match request_airdrop_transaction(&drone_addr, &id.pubkey(), amount_to_drop, blockhash) {
+            Ok(transaction) => {
+                let signature = client.async_send_transaction(transaction).unwrap();
+
+                for _ in 0..30 {
+                    if let Ok(Some(_)) = client.get_signature_status(&signature) {
+                        break;
+                    }
+                    sleep(Duration::from_millis(100));
+                }
+                if client.get_balance(&id.pubkey()).unwrap_or(0) >= amount {
+                    break;
+                }
+            }
+            Err(err) => {
+                panic!(
+                    "Error requesting airdrop: {:?} to addr: {:?} amount: {}",
+                    err, drone_addr, amount
+                );
+            }
+        };
+        debug!("  Retry...");
+        tries += 1;
+        if tries > 50 {
+            error!("airdrop_lamports: Too many retries ({}), give up", tries);
+            exit(1);
+        }
+        sleep(Duration::from_secs(2));
+    }
+}

bench-exchange/src/cli.rs

@@ -0,0 +1,218 @@
+use clap::{crate_description, crate_name, crate_version, value_t, App, Arg, ArgMatches};
+use solana_core::gen_keys::GenKeys;
+use solana_drone::drone::DRONE_PORT;
+use solana_sdk::signature::{read_keypair, Keypair, KeypairUtil};
+use std::net::SocketAddr;
+use std::process::exit;
+use std::time::Duration;
+
+pub struct Config {
+    pub entrypoint_addr: SocketAddr,
+    pub drone_addr: SocketAddr,
+    pub identity: Keypair,
+    pub threads: usize,
+    pub num_nodes: usize,
+    pub duration: Duration,
+    pub transfer_delay: u64,
+    pub fund_amount: u64,
+    pub batch_size: usize,
+    pub chunk_size: usize,
+    pub account_groups: usize,
+    pub client_ids_and_stake_file: String,
+    pub write_to_client_file: bool,
+    pub read_from_client_file: bool,
+}
+
+impl Default for Config {
+    fn default() -> Self {
+        Self {
+            entrypoint_addr: SocketAddr::from(([127, 0, 0, 1], 8001)),
+            drone_addr: SocketAddr::from(([127, 0, 0, 1], DRONE_PORT)),
+            identity: Keypair::new(),
+            num_nodes: 1,
+            threads: 4,
+            duration: Duration::new(u64::max_value(), 0),
+            transfer_delay: 0,
+            fund_amount: 100_000,
+            batch_size: 100,
+            chunk_size: 100,
+            account_groups: 100,
+            client_ids_and_stake_file: String::new(),
+            write_to_client_file: false,
+            read_from_client_file: false,
+        }
+    }
+}
+
+pub fn build_args<'a, 'b>() -> App<'a, 'b> {
+    App::new(crate_name!())
+        .about(crate_description!())
+        .version(crate_version!())
+        .arg(
+            Arg::with_name("entrypoint")
+                .short("n")
+                .long("entrypoint")
+                .value_name("HOST:PORT")
+                .takes_value(true)
+                .required(false)
+                .default_value("127.0.0.1:8001")
+                .help("Cluster entry point; defaults to 127.0.0.1:8001"),
+        )
+        .arg(
+            Arg::with_name("drone")
+                .short("d")
+                .long("drone")
+                .value_name("HOST:PORT")
+                .takes_value(true)
+                .required(false)
+                .default_value("127.0.0.1:9900")
+                .help("Location of the drone; defaults to 127.0.0.1:9900"),
+        )
+        .arg(
+            Arg::with_name("identity")
+                .short("i")
+                .long("identity")
+                .value_name("PATH")
+                .takes_value(true)
+                .help("File containing a client identity (keypair)"),
+        )
+        .arg(
+            Arg::with_name("threads")
+                .long("threads")
+                .value_name("<threads>")
+                .takes_value(true)
+                .required(false)
+                .default_value("1")
+                .help("Number of threads submitting transactions"),
+        )
+        .arg(
+            Arg::with_name("num-nodes")
+                .long("num-nodes")
+                .value_name("NUM")
+                .takes_value(true)
+                .required(false)
+                .default_value("1")
+                .help("Wait for NUM nodes to converge"),
+        )
+        .arg(
+            Arg::with_name("duration")
+                .long("duration")
+                .value_name("SECS")
+                .takes_value(true)
+                .default_value("60")
+                .help("Seconds to run benchmark, then exit; default is forever"),
+        )
+        .arg(
+            Arg::with_name("transfer-delay")
+                .long("transfer-delay")
+                .value_name("<delay>")
+                .takes_value(true)
+                .required(false)
+                .default_value("0")
+                .help("Delay between each chunk"),
+        )
+        .arg(
+            Arg::with_name("fund-amount")
+                .long("fund-amount")
+                .value_name("<fund>")
+                .takes_value(true)
+                .required(false)
+                .default_value("100000")
+                .help("Number of lamports to fund to each signer"),
+        )
+        .arg(
+            Arg::with_name("batch-size")
+                .long("batch-size")
+                .value_name("<batch>")
+                .takes_value(true)
+                .required(false)
+                .default_value("1000")
+                .help("Number of transactions before the signer rolls over"),
+        )
+        .arg(
+            Arg::with_name("chunk-size")
+                .long("chunk-size")
+                .value_name("<cunk>")
+                .takes_value(true)
+                .required(false)
+                .default_value("500")
+                .help("Number of transactions to generate and send at a time"),
+        )
+        .arg(
+            Arg::with_name("account-groups")
+                .long("account-groups")
+                .value_name("<groups>")
+                .takes_value(true)
+                .required(false)
+                .default_value("10")
+                .help("Number of account groups to cycle for each batch"),
+        )
+        .arg(
+            Arg::with_name("write-client-keys")
+                .long("write-client-keys")
+                .value_name("FILENAME")
+                .takes_value(true)
+                .help("Generate client keys and stakes and write the list to YAML file"),
+        )
+        .arg(
+            Arg::with_name("read-client-keys")
+                .long("read-client-keys")
+                .value_name("FILENAME")
+                .takes_value(true)
+                .help("Read client keys and stakes from the YAML file"),
+        )
+}
+
+pub fn extract_args<'a>(matches: &ArgMatches<'a>) -> Config {
+    let mut args = Config::default();
+
+    args.entrypoint_addr = solana_netutil::parse_host_port(matches.value_of("entrypoint").unwrap())
+        .unwrap_or_else(|e| {
+            eprintln!("failed to parse entrypoint address: {}", e);
+            exit(1)
+        });
+
+    args.drone_addr = solana_netutil::parse_host_port(matches.value_of("drone").unwrap())
+        .unwrap_or_else(|e| {
+            eprintln!("failed to parse drone address: {}", e);
+            exit(1)
+        });
+
+    if matches.is_present("identity") {
+        args.identity = read_keypair(matches.value_of("identity").unwrap())
+            .expect("can't read client identity");
+    } else {
+        args.identity = {
+            let seed = [42_u8; 32];
+            let mut rnd = GenKeys::new(seed);
+            rnd.gen_keypair()
+        };
+    }
+    args.threads = value_t!(matches.value_of("threads"), usize).expect("Failed to parse threads");
+    args.num_nodes =
+        value_t!(matches.value_of("num-nodes"), usize).expect("Failed to parse num-nodes");
+    let duration = value_t!(matches.value_of("duration"), u64).expect("Failed to parse duration");
+    args.duration = Duration::from_secs(duration);
+    args.transfer_delay =
+        value_t!(matches.value_of("transfer-delay"), u64).expect("Failed to parse transfer-delay");
+    args.fund_amount =
+        value_t!(matches.value_of("fund-amount"), u64).expect("Failed to parse fund-amount");
+    args.batch_size =
+        value_t!(matches.value_of("batch-size"), usize).expect("Failed to parse batch-size");
+    args.chunk_size =
+        value_t!(matches.value_of("chunk-size"), usize).expect("Failed to parse chunk-size");
+    args.account_groups = value_t!(matches.value_of("account-groups"), usize)
+        .expect("Failed to parse account-groups");
+
+    if let Some(s) = matches.value_of("write-client-keys") {
+        args.write_to_client_file = true;
+        args.client_ids_and_stake_file = s.to_string();
+    }
+
+    if let Some(s) = matches.value_of("read-client-keys") {
+        assert!(!args.write_to_client_file);
+        args.read_from_client_file = true;
+        args.client_ids_and_stake_file = s.to_string();
+    }
+    args
+}

bench-exchange/src/lib.rs

@@ -0,0 +1,3 @@
+pub mod bench;
+pub mod cli;
+mod order_book;

bench-exchange/src/main.rs

@@ -0,0 +1,83 @@
+pub mod bench;
+mod cli;
+pub mod order_book;
+
+use crate::bench::{airdrop_lamports, create_client_accounts_file, do_bench_exchange, Config};
+use log::*;
+use solana_core::gossip_service::{discover_cluster, get_multi_client};
+use solana_sdk::signature::KeypairUtil;
+
+fn main() {
+    solana_logger::setup();
+    solana_metrics::set_panic_hook("bench-exchange");
+
+    let matches = cli::build_args().get_matches();
+    let cli_config = cli::extract_args(&matches);
+
+    let cli::Config {
+        entrypoint_addr,
+        drone_addr,
+        identity,
+        threads,
+        num_nodes,
+        duration,
+        transfer_delay,
+        fund_amount,
+        batch_size,
+        chunk_size,
+        account_groups,
+        client_ids_and_stake_file,
+        write_to_client_file,
+        read_from_client_file,
+        ..
+    } = cli_config;
+
+    let config = Config {
+        identity,
+        threads,
+        duration,
+        transfer_delay,
+        fund_amount,
+        batch_size,
+        chunk_size,
+        account_groups,
+        client_ids_and_stake_file,
+        read_from_client_file,
+    };
+
+    if write_to_client_file {
+        create_client_accounts_file(
+            &config.client_ids_and_stake_file,
+            config.batch_size,
+            config.account_groups,
+            config.fund_amount,
+        );
+    } else {
+        info!("Connecting to the cluster");
+        let (nodes, _replicators) =
+            discover_cluster(&entrypoint_addr, num_nodes).unwrap_or_else(|_| {
+                panic!("Failed to discover nodes");
+            });
+
+        let (client, num_clients) = get_multi_client(&nodes);
+
+        info!("{} nodes found", num_clients);
+        if num_clients < num_nodes {
+            panic!("Error: Insufficient nodes discovered");
+        }
+
+        if !read_from_client_file {
+            info!("Funding keypair: {}", config.identity.pubkey());
+
+            let accounts_in_groups = batch_size * account_groups;
+            const NUM_SIGNERS: u64 = 2;
+            airdrop_lamports(
+                &client,
+                &drone_addr,
+                &config.identity,
+                fund_amount * (accounts_in_groups + 1) as u64 * NUM_SIGNERS,
+            );
+        }
+        do_bench_exchange(vec![client], config);
+    }
+}

bench-exchange/src/order_book.rs

@@ -0,0 +1,134 @@
+use itertools::EitherOrBoth::{Both, Left, Right};
+use itertools::Itertools;
+use log::*;
+use solana_exchange_api::exchange_state::*;
+use solana_sdk::pubkey::Pubkey;
+use std::cmp::Ordering;
+use std::collections::BinaryHeap;
+use std::{error, fmt};
+
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub struct ToOrder {
+    pub pubkey: Pubkey,
+    pub info: OrderInfo,
+}
+
+impl Ord for ToOrder {
+    fn cmp(&self, other: &Self) -> Ordering {
+        other.info.price.cmp(&self.info.price)
+    }
+}
+impl PartialOrd for ToOrder {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        Some(self.cmp(other))
+    }
+}
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub struct FromOrder {
+    pub pubkey: Pubkey,
+    pub info: OrderInfo,
+}
+
+impl Ord for FromOrder {
+    fn cmp(&self, other: &Self) -> Ordering {
+        self.info.price.cmp(&other.info.price)
+    }
+}
+impl PartialOrd for FromOrder {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+#[derive(Default)]
+pub struct OrderBook {
+    // TODO scale to x token types
+    to_ab: BinaryHeap<ToOrder>,
+    from_ab: BinaryHeap<FromOrder>,
+}
+impl fmt::Display for OrderBook {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        writeln!(
+            f,
+            "+-Order Book--------------------------+-------------------------------------+"
+        )?;
+        for (i, it) in self
+            .to_ab
+            .iter()
+            .zip_longest(self.from_ab.iter())
+            .enumerate()
+        {
+            match it {
+                Both(to, from) => writeln!(
+                    f,
+                    "| T AB {:8} for {:8}/{:8} | F AB {:8} for {:8}/{:8} |{}",
+                    to.info.tokens,
+                    SCALER,
+                    to.info.price,
+                    from.info.tokens,
+                    SCALER,
+                    from.info.price,
+                    i
+                )?,
+                Left(to) => writeln!(
+                    f,
+                    "| T AB {:8} for {:8}/{:8} |                                     |{}",
+                    to.info.tokens, SCALER, to.info.price, i
+                )?,
+                Right(from) => writeln!(
+                    f,
+                    "|                                     | F AB {:8} for {:8}/{:8} |{}",
+                    from.info.tokens, SCALER, from.info.price, i
+                )?,
+            }
+        }
+        write!(
+            f,
+            "+-------------------------------------+-------------------------------------+"
+        )?;
+        Ok(())
+    }
+}
+
+impl OrderBook {
+    // TODO
+    // pub fn cancel(&mut self, pubkey: Pubkey) -> Result<(), Box<dyn error::Error>> {
+    //     Ok(())
+    // }
+    pub fn push(&mut self, pubkey: Pubkey, info: OrderInfo) -> Result<(), Box<dyn error::Error>> {
+        check_trade(info.side, info.tokens, info.price)?;
+        match info.side {
+            OrderSide::Ask => {
+                self.to_ab.push(ToOrder { pubkey, info });
+            }
+            OrderSide::Bid => {
+                self.from_ab.push(FromOrder { pubkey, info });
+            }
+        }
+        Ok(())
+    }
+    pub fn pop(&mut self) -> Option<(ToOrder, FromOrder)> {
+        if let Some(pair) = Self::pop_pair(&mut self.to_ab, &mut self.from_ab) {
+            return Some(pair);
+        }
+        None
+    }
+    pub fn get_num_outstanding(&self) -> (usize, usize) {
+        (self.to_ab.len(), self.from_ab.len())
+    }
+
+    fn pop_pair(
+        to_ab: &mut BinaryHeap<ToOrder>,
+        from_ab: &mut BinaryHeap<FromOrder>,
+    ) -> Option<(ToOrder, FromOrder)> {
+        let to = to_ab.peek()?;
+        let from = from_ab.peek()?;
+        if from.info.price < to.info.price {
+            debug!("Trade not viable");
+            return None;
+        }
+        let to = to_ab.pop()?;
+        let from = from_ab.pop()?;
+        Some((to, from))
+    }
+}

bench-streamer/.gitignore

@@ -0,0 +1,2 @@
+/target/
+/farf/

bench-streamer/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+authors = ["Solana Maintainers <maintainers@solana.com>"]
+edition = "2018"
+name = "solana-bench-streamer"
+version = "0.19.0-pre0"
+repository = "https://github.com/solana-labs/solana"
+license = "Apache-2.0"
+homepage = "https://solana.com/"
+
+[dependencies]
+clap = "2.33.0"
+solana-core = { path = "../core", version = "0.19.0-pre0" }
+solana-logger = { path = "../logger", version = "0.19.0-pre0" }
+solana-netutil = { path = "../netutil", version = "0.19.0-pre0" }

bench-streamer/src/main.rs

@@ -1,11 +1,8 @@
-extern crate clap;
-extern crate solana;
-
-use clap::{App, Arg};
-use solana::netutil::bind_to;
-use solana::packet::{Packet, SharedPackets, BLOB_SIZE, PACKET_DATA_SIZE};
-use solana::result::Result;
-use solana::streamer::{receiver, PacketReceiver};
+use clap::{crate_description, crate_name, crate_version, App, Arg};
+use solana_core::packet::PacketsRecycler;
+use solana_core::packet::{Packet, Packets, BLOB_SIZE, PACKET_DATA_SIZE};
+use solana_core::result::Result;
+use solana_core::streamer::{receiver, PacketReceiver};
 use std::cmp::max;
 use std::net::{IpAddr, Ipv4Addr, SocketAddr, UdpSocket};
 use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
@@ -18,19 +15,19 @@ use std::time::SystemTime;
 
 fn producer(addr: &SocketAddr, exit: Arc<AtomicBool>) -> JoinHandle<()> {
     let send = UdpSocket::bind("0.0.0.0:0").unwrap();
-    let msgs = SharedPackets::default();
-    let msgs_ = msgs.clone();
-    msgs.write().unwrap().packets.resize(10, Packet::default());
-    for w in &mut msgs.write().unwrap().packets {
+    let mut msgs = Packets::default();
+    msgs.packets.resize(10, Packet::default());
+    for w in msgs.packets.iter_mut() {
         w.meta.size = PACKET_DATA_SIZE;
         w.meta.set_addr(&addr);
     }
+    let msgs = Arc::new(msgs);
     spawn(move || loop {
         if exit.load(Ordering::Relaxed) {
             return;
         }
         let mut num = 0;
-        for p in &msgs_.read().unwrap().packets {
+        for p in &msgs.packets {
             let a = p.meta.addr();
             assert!(p.meta.size < BLOB_SIZE);
             send.send_to(&p.data[..p.meta.size], &a).unwrap();
@@ -47,7 +44,7 @@ fn sink(exit: Arc<AtomicBool>, rvs: Arc<AtomicUsize>, r: PacketReceiver) -> Join
         }
         let timer = Duration::new(1, 0);
         if let Ok(msgs) = r.recv_timeout(timer) {
-            rvs.fetch_add(msgs.read().unwrap().packets.len(), Ordering::Relaxed);
+            rvs.fetch_add(msgs.packets.len(), Ordering::Relaxed);
         }
     })
 }
@@ -55,14 +52,17 @@ fn sink(exit: Arc<AtomicBool>, rvs: Arc<AtomicUsize>, r: PacketReceiver) -> Join
 fn main() -> Result<()> {
     let mut num_sockets = 1usize;
 
-    let matches = App::new("solana-bench-streamer")
+    let matches = App::new(crate_name!())
+        .about(crate_description!())
+        .version(crate_version!())
         .arg(
             Arg::with_name("num-recv-sockets")
                 .long("num-recv-sockets")
                 .value_name("NUM")
                 .takes_value(true)
                 .help("Use NUM receive sockets"),
-        ).get_matches();
+        )
+        .get_matches();
 
     if let Some(n) = matches.value_of("num-recv-sockets") {
         num_sockets = max(num_sockets, n.to_string().parse().expect("integer"));
@@ -75,8 +75,9 @@ fn main() -> Result<()> {
 
     let mut read_channels = Vec::new();
     let mut read_threads = Vec::new();
+    let recycler = PacketsRecycler::default();
     for _ in 0..num_sockets {
-        let read = bind_to(port, false).unwrap();
+        let read = solana_netutil::bind_to(port, false).unwrap();
         read.set_read_timeout(Some(Duration::new(1, 0))).unwrap();
 
         addr = read.local_addr().unwrap();
@@ -86,9 +87,10 @@ fn main() -> Result<()> {
         read_channels.push(r_reader);
         read_threads.push(receiver(
             Arc::new(read),
-            exit.clone(),
+            &exit,
             s_reader,
-            "bench-streamer",
+            recycler.clone(),
+            "bench-streamer-test",
         ));
     }
 

bench-tps/.gitignore

@@ -0,0 +1,4 @@
+/target/
+/config/
+/config-local/
+/farf/

bench-tps/Cargo.toml

@@ -0,0 +1,35 @@
+[package]
+authors = ["Solana Maintainers <maintainers@solana.com>"]
+edition = "2018"
+name = "solana-bench-tps"
+version = "0.19.0-pre0"
+repository = "https://github.com/solana-labs/solana"
+license = "Apache-2.0"
+homepage = "https://solana.com/"
+
+[dependencies]
+bincode = "1.1.4"
+clap = "2.33.0"
+log = "0.4.8"
+rayon = "1.2.0"
+serde = "1.0.101"
+serde_derive = "1.0.101"
+serde_json = "1.0.40"
+serde_yaml = "0.8.9"
+solana-core = { path = "../core", version = "0.19.0-pre0" }
+solana-genesis = { path = "../genesis", version = "0.19.0-pre0" }
+solana-client = { path = "../client", version = "0.19.0-pre0" }
+solana-drone = { path = "../drone", version = "0.19.0-pre0" }
+solana-librapay-api = { path = "../programs/librapay_api", version = "0.19.0-pre0" }
+solana-logger = { path = "../logger", version = "0.19.0-pre0" }
+solana-metrics = { path = "../metrics", version = "0.19.0-pre0" }
+solana-measure = { path = "../measure", version = "0.19.0-pre0" }
+solana-netutil = { path = "../netutil", version = "0.19.0-pre0" }
+solana-runtime = { path = "../runtime", version = "0.19.0-pre0" }
+solana-sdk = { path = "../sdk", version = "0.19.0-pre0" }
+solana-move-loader-program = { path = "../programs/move_loader_program", version = "0.19.0-pre0" }
+solana-move-loader-api = { path = "../programs/move_loader_api", version = "0.19.0-pre0" }
+
+[dev-dependencies]
+serial_test = "0.2.0"
+serial_test_derive = "0.2.0"

bench-tps/src/cli.rs

@@ -0,0 +1,241 @@
+use std::net::SocketAddr;
+use std::process::exit;
+use std::time::Duration;
+
+use clap::{crate_description, crate_name, crate_version, App, Arg, ArgMatches};
+use solana_drone::drone::DRONE_PORT;
+use solana_sdk::fee_calculator::FeeCalculator;
+use solana_sdk::signature::{read_keypair, Keypair, KeypairUtil};
+
+const NUM_LAMPORTS_PER_ACCOUNT_DEFAULT: u64 = 64 * 1024;
+
+/// Holds the configuration for a single run of the benchmark
+pub struct Config {
+    pub entrypoint_addr: SocketAddr,
+    pub drone_addr: SocketAddr,
+    pub id: Keypair,
+    pub threads: usize,
+    pub num_nodes: usize,
+    pub duration: Duration,
+    pub tx_count: usize,
+    pub thread_batch_sleep_ms: usize,
+    pub sustained: bool,
+    pub client_ids_and_stake_file: String,
+    pub write_to_client_file: bool,
+    pub read_from_client_file: bool,
+    pub target_lamports_per_signature: u64,
+    pub use_move: bool,
+    pub num_lamports_per_account: u64,
+}
+
+impl Default for Config {
+    fn default() -> Config {
+        Config {
+            entrypoint_addr: SocketAddr::from(([127, 0, 0, 1], 8001)),
+            drone_addr: SocketAddr::from(([127, 0, 0, 1], DRONE_PORT)),
+            id: Keypair::new(),
+            threads: 4,
+            num_nodes: 1,
+            duration: Duration::new(std::u64::MAX, 0),
+            tx_count: 500_000,
+            thread_batch_sleep_ms: 0,
+            sustained: false,
+            client_ids_and_stake_file: String::new(),
+            write_to_client_file: false,
+            read_from_client_file: false,
+            target_lamports_per_signature: FeeCalculator::default().target_lamports_per_signature,
+            use_move: false,
+            num_lamports_per_account: NUM_LAMPORTS_PER_ACCOUNT_DEFAULT,
+        }
+    }
+}
+
+/// Defines and builds the CLI args for a run of the benchmark
+pub fn build_args<'a, 'b>() -> App<'a, 'b> {
+    App::new(crate_name!()).about(crate_description!())
+        .version(crate_version!())
+        .arg(
+            Arg::with_name("entrypoint")
+                .short("n")
+                .long("entrypoint")
+                .value_name("HOST:PORT")
+                .takes_value(true)
+                .help("Rendezvous with the cluster at this entry point; defaults to 127.0.0.1:8001"),
+        )
+        .arg(
+            Arg::with_name("drone")
+                .short("d")
+                .long("drone")
+                .value_name("HOST:PORT")
+                .takes_value(true)
+                .help("Location of the drone; defaults to entrypoint:DRONE_PORT"),
+        )
+        .arg(
+            Arg::with_name("identity")
+                .short("i")
+                .long("identity")
+                .value_name("PATH")
+                .takes_value(true)
+                .help("File containing a client identity (keypair)"),
+        )
+        .arg(
+            Arg::with_name("num-nodes")
+                .short("N")
+                .long("num-nodes")
+                .value_name("NUM")
+                .takes_value(true)
+                .help("Wait for NUM nodes to converge"),
+        )
+        .arg(
+            Arg::with_name("threads")
+                .short("t")
+                .long("threads")
+                .value_name("NUM")
+                .takes_value(true)
+                .help("Number of threads"),
+        )
+        .arg(
+            Arg::with_name("duration")
+                .long("duration")
+                .value_name("SECS")
+                .takes_value(true)
+                .help("Seconds to run benchmark, then exit; default is forever"),
+        )
+        .arg(
+            Arg::with_name("sustained")
+                .long("sustained")
+                .help("Use sustained performance mode vs. peak mode. This overlaps the tx generation with transfers."),
+        )
+        .arg(
+            Arg::with_name("use-move")
+                .long("use-move")
+                .help("Use Move language transactions to perform transfers."),
+        )
+        .arg(
+            Arg::with_name("tx_count")
+                .long("tx_count")
+                .value_name("NUM")
+                .takes_value(true)
+                .help("Number of transactions to send per batch")
+        )
+        .arg(
+            Arg::with_name("thread-batch-sleep-ms")
+                .short("z")
+                .long("thread-batch-sleep-ms")
+                .value_name("NUM")
+                .takes_value(true)
+                .help("Per-thread-per-iteration sleep in ms"),
+        )
+        .arg(
+            Arg::with_name("write-client-keys")
+                .long("write-client-keys")
+                .value_name("FILENAME")
+                .takes_value(true)
+                .help("Generate client keys and stakes and write the list to YAML file"),
+        )
+        .arg(
+            Arg::with_name("read-client-keys")
+                .long("read-client-keys")
+                .value_name("FILENAME")
+                .takes_value(true)
+                .help("Read client keys and stakes from the YAML file"),
+        )
+        .arg(
+            Arg::with_name("target_lamports_per_signature")
+                .long("target-lamports-per-signature")
+                .value_name("LAMPORTS")
+                .takes_value(true)
+                .help(
+                    "The cost in lamports that the cluster will charge for signature \
+                     verification when the cluster is operating at target-signatures-per-slot",
+                ),
+        )
+        .arg(
+            Arg::with_name("num_lamports_per_account")
+                .long("num-lamports-per-account")
+                .value_name("LAMPORTS")
+                .takes_value(true)
+                .help(
+                    "Number of lamports per account.",
+                ),
+        )
+}
+
+/// Parses a clap `ArgMatches` structure into a `Config`
+/// # Arguments
+/// * `matches` - command line arguments parsed by clap
+/// # Panics
+/// Panics if there is trouble parsing any of the arguments
+pub fn extract_args<'a>(matches: &ArgMatches<'a>) -> Config {
+    let mut args = Config::default();
+
+    if let Some(addr) = matches.value_of("entrypoint") {
+        args.entrypoint_addr = solana_netutil::parse_host_port(addr).unwrap_or_else(|e| {
+            eprintln!("failed to parse entrypoint address: {}", e);
+            exit(1)
+        });
+    }
+
+    if let Some(addr) = matches.value_of("drone") {
+        args.drone_addr = solana_netutil::parse_host_port(addr).unwrap_or_else(|e| {
+            eprintln!("failed to parse drone address: {}", e);
+            exit(1)
+        });
+    }
+
+    if matches.is_present("identity") {
+        args.id = read_keypair(matches.value_of("identity").unwrap())
+            .expect("can't read client identity");
+    }
+
+    if let Some(t) = matches.value_of("threads") {
+        args.threads = t.to_string().parse().expect("can't parse threads");
+    }
+
+    if let Some(n) = matches.value_of("num-nodes") {
+        args.num_nodes = n.to_string().parse().expect("can't parse num-nodes");
+    }
+
+    if let Some(duration) = matches.value_of("duration") {
+        args.duration = Duration::new(
+            duration.to_string().parse().expect("can't parse duration"),
+            0,
+        );
+    }
+
+    if let Some(s) = matches.value_of("tx_count") {
+        args.tx_count = s.to_string().parse().expect("can't parse tx_account");
+    }
+
+    if let Some(t) = matches.value_of("thread-batch-sleep-ms") {
+        args.thread_batch_sleep_ms = t
+            .to_string()
+            .parse()
+            .expect("can't parse thread-batch-sleep-ms");
+    }
+
+    args.sustained = matches.is_present("sustained");
+
+    if let Some(s) = matches.value_of("write-client-keys") {
+        args.write_to_client_file = true;
+        args.client_ids_and_stake_file = s.to_string();
+    }
+
+    if let Some(s) = matches.value_of("read-client-keys") {
+        assert!(!args.write_to_client_file);
+        args.read_from_client_file = true;
+        args.client_ids_and_stake_file = s.to_string();
+    }
+
+    if let Some(v) = matches.value_of("target_lamports_per_signature") {
+        args.target_lamports_per_signature = v.to_string().parse().expect("can't parse lamports");
+    }
+
+    args.use_move = matches.is_present("use-move");
+
+    if let Some(v) = matches.value_of("num_lamports_per_account") {
+        args.num_lamports_per_account = v.to_string().parse().expect("can't parse lamports");
+    }
+
+    args
+}

bench-tps/src/lib.rs

@@ -0,0 +1,2 @@
+pub mod bench;
+pub mod cli;

bench-tps/src/main.rs

@@ -0,0 +1,126 @@
+use solana_bench_tps::bench::{do_bench_tps, generate_and_fund_keypairs, generate_keypairs};
+use solana_bench_tps::cli;
+use solana_core::gossip_service::{discover_cluster, get_multi_client};
+use solana_genesis::PrimordialAccountDetails;
+use solana_sdk::fee_calculator::FeeCalculator;
+use solana_sdk::signature::{Keypair, KeypairUtil};
+use solana_sdk::system_program;
+use std::collections::HashMap;
+use std::fs::File;
+use std::io::prelude::*;
+use std::path::Path;
+use std::process::exit;
+
+/// Number of signatures for all transactions in ~1 week at ~100K TPS
+pub const NUM_SIGNATURES_FOR_TXS: u64 = 100_000 * 60 * 60 * 24 * 7;
+
+fn main() {
+    solana_logger::setup_with_filter("solana=info");
+    solana_metrics::set_panic_hook("bench-tps");
+
+    let matches = cli::build_args().get_matches();
+    let cli_config = cli::extract_args(&matches);
+
+    let cli::Config {
+        entrypoint_addr,
+        drone_addr,
+        id,
+        num_nodes,
+        tx_count,
+        client_ids_and_stake_file,
+        write_to_client_file,
+        read_from_client_file,
+        target_lamports_per_signature,
+        use_move,
+        num_lamports_per_account,
+        ..
+    } = &cli_config;
+
+    if *write_to_client_file {
+        let (keypairs, _) = generate_keypairs(&id, *tx_count as u64 * 2);
+        let num_accounts = keypairs.len() as u64;
+        let max_fee = FeeCalculator::new(*target_lamports_per_signature).max_lamports_per_signature;
+        let num_lamports_per_account = (num_accounts - 1 + NUM_SIGNATURES_FOR_TXS * max_fee)
+            / num_accounts
+            + num_lamports_per_account;
+        let mut accounts = HashMap::new();
+        keypairs.iter().for_each(|keypair| {
+            accounts.insert(
+                serde_json::to_string(&keypair.to_bytes().to_vec()).unwrap(),
+                PrimordialAccountDetails {
+                    balance: num_lamports_per_account,
+                    executable: false,
+                    owner: system_program::id().to_string(),
+                    data: String::new(),
+                },
+            );
+        });
+
+        let serialized = serde_yaml::to_string(&accounts).unwrap();
+        let path = Path::new(&client_ids_and_stake_file);
+        let mut file = File::create(path).unwrap();
+        file.write_all(&serialized.into_bytes()).unwrap();
+        return;
+    }
+
+    println!("Connecting to the cluster");
+    let (nodes, _replicators) =
+        discover_cluster(&entrypoint_addr, *num_nodes).unwrap_or_else(|err| {
+            eprintln!("Failed to discover {} nodes: {:?}", num_nodes, err);
+            exit(1);
+        });
+
+    let (client, num_clients) = get_multi_client(&nodes);
+
+    if nodes.len() < num_clients {
+        eprintln!(
+            "Error: Insufficient nodes discovered.  Expecting {} or more",
+            num_nodes
+        );
+        exit(1);
+    }
+
+    let (keypairs, move_keypairs, keypair_balance) = if *read_from_client_file && !use_move {
+        let path = Path::new(&client_ids_and_stake_file);
+        let file = File::open(path).unwrap();
+
+        let accounts: HashMap<String, PrimordialAccountDetails> =
+            serde_yaml::from_reader(file).unwrap();
+        let mut keypairs = vec![];
+        let mut last_balance = 0;
+
+        accounts
+            .into_iter()
+            .for_each(|(keypair, primordial_account)| {
+                let bytes: Vec<u8> = serde_json::from_str(keypair.as_str()).unwrap();
+                keypairs.push(Keypair::from_bytes(&bytes).unwrap());
+                last_balance = primordial_account.balance;
+            });
+        // Sort keypairs so that do_bench_tps() uses the same subset of accounts for each run.
+        // This prevents the amount of storage needed for bench-tps accounts from creeping up
+        // across multiple runs.
+        keypairs.sort_by(|x, y| x.pubkey().to_string().cmp(&y.pubkey().to_string()));
+        (keypairs, None, last_balance)
+    } else {
+        generate_and_fund_keypairs(
+            &client,
+            Some(*drone_addr),
+            &id,
+            *tx_count,
+            *num_lamports_per_account,
+            *use_move,
+        )
+        .unwrap_or_else(|e| {
+            eprintln!("Error could not fund keys: {:?}", e);
+            exit(1);
+        })
+    };
+
+    do_bench_tps(
+        vec![client],
+        cli_config,
+        keypairs,
+        keypair_balance,
+        move_keypairs,
+    );
+}

benches/bank.rs

@@ -1,55 +0,0 @@
-#![feature(test)]
-extern crate bincode;
-extern crate rayon;
-extern crate solana;
-extern crate test;
-
-use bincode::serialize;
-use rayon::prelude::*;
-use solana::bank::*;
-use solana::hash::hash;
-use solana::mint::Mint;
-use solana::signature::{Keypair, KeypairUtil};
-use solana::system_transaction::SystemTransaction;
-use solana::transaction::Transaction;
-use test::Bencher;
-
-#[bench]
-fn bench_process_transaction(bencher: &mut Bencher) {
-    let mint = Mint::new(100_000_000);
-    let bank = Bank::new(&mint);
-
-    // Create transactions between unrelated parties.
-    let transactions: Vec<_> = (0..4096)
-        .into_par_iter()
-        .map(|i| {
-            // Seed the 'from' account.
-            let rando0 = Keypair::new();
-            let tx = Transaction::system_move(
-                &mint.keypair(),
-                rando0.pubkey(),
-                10_000,
-                mint.last_id(),
-                0,
-            );
-            assert!(bank.process_transaction(&tx).is_ok());
-
-            // Seed the 'to' account and a cell for its signature.
-            let last_id = hash(&serialize(&i).unwrap()); // Unique hash
-            bank.register_entry_id(&last_id);
-
-            let rando1 = Keypair::new();
-            let tx = Transaction::system_move(&rando0, rando1.pubkey(), 1, last_id, 0);
-            assert!(bank.process_transaction(&tx).is_ok());
-
-            // Finally, return the transaction to the benchmark.
-            tx
-        }).collect();
-
-    bencher.iter(|| {
-        // Since benchmarker runs this multiple times, we need to clear the signatures.
-        bank.clear_signatures();
-        let results = bank.process_transactions(&transactions);
-        assert!(results.iter().all(Result::is_ok));
-    })
-}

benches/banking_stage.rs

@@ -1,110 +0,0 @@
-#![feature(test)]
-extern crate bincode;
-extern crate rand;
-extern crate rayon;
-extern crate solana;
-extern crate solana_program_interface;
-extern crate test;
-
-use rand::{thread_rng, Rng};
-use rayon::prelude::*;
-use solana::bank::Bank;
-use solana::banking_stage::{BankingStage, NUM_THREADS};
-use solana::entry::Entry;
-use solana::mint::Mint;
-use solana::packet::to_packets_chunked;
-use solana::signature::{KeypairUtil, Signature};
-use solana::system_transaction::SystemTransaction;
-use solana::transaction::Transaction;
-use solana_program_interface::pubkey::Pubkey;
-use std::iter;
-use std::sync::mpsc::{channel, Receiver};
-use std::sync::Arc;
-use std::time::Duration;
-use test::Bencher;
-
-fn check_txs(receiver: &Receiver<Vec<Entry>>, ref_tx_count: usize) {
-    let mut total = 0;
-    loop {
-        let entries = receiver.recv_timeout(Duration::new(1, 0));
-        if let Ok(entries) = entries {
-            for entry in &entries {
-                total += entry.transactions.len();
-            }
-        } else {
-            break;
-        }
-        if total >= ref_tx_count {
-            break;
-        }
-    }
-    assert_eq!(total, ref_tx_count);
-}
-
-#[bench]
-fn bench_banking_stage_multi_accounts(bencher: &mut Bencher) {
-    let txes = 1000 * NUM_THREADS;
-    let mint_total = 1_000_000_000_000;
-    let mint = Mint::new(mint_total);
-
-    let (verified_sender, verified_receiver) = channel();
-    let bank = Arc::new(Bank::new(&mint));
-    let dummy = Transaction::system_move(
-        &mint.keypair(),
-        mint.keypair().pubkey(),
-        1,
-        mint.last_id(),
-        0,
-    );
-    let transactions: Vec<_> = (0..txes)
-        .into_par_iter()
-        .map(|_| {
-            let mut new = dummy.clone();
-            let from: Vec<u8> = (0..64).map(|_| thread_rng().gen()).collect();
-            let to: Vec<u8> = (0..64).map(|_| thread_rng().gen()).collect();
-            let sig: Vec<u8> = (0..64).map(|_| thread_rng().gen()).collect();
-            new.keys[0] = Pubkey::new(&from[0..32]);
-            new.keys[1] = Pubkey::new(&to[0..32]);
-            new.signature = Signature::new(&sig[0..64]);
-            new
-        }).collect();
-    // fund all the accounts
-    transactions.iter().for_each(|tx| {
-        let fund = Transaction::system_move(
-            &mint.keypair(),
-            tx.keys[0],
-            mint_total / txes as i64,
-            mint.last_id(),
-            0,
-        );
-        assert!(bank.process_transaction(&fund).is_ok());
-    });
-    //sanity check, make sure all the transactions can execute sequentially
-    transactions.iter().for_each(|tx| {
-        let res = bank.process_transaction(&tx);
-        assert!(res.is_ok(), "sanity test transactions");
-    });
-    bank.clear_signatures();
-    //sanity check, make sure all the transactions can execute in parallel
-    let res = bank.process_transactions(&transactions);
-    for r in res {
-        assert!(r.is_ok(), "sanity parallel execution");
-    }
-    bank.clear_signatures();
-    let verified: Vec<_> = to_packets_chunked(&transactions.clone(), 192)
-        .into_iter()
-        .map(|x| {
-            let len = x.read().unwrap().packets.len();
-            (x, iter::repeat(1).take(len).collect())
-        }).collect();
-    let (_stage, signal_receiver) = BankingStage::new(&bank, verified_receiver, Default::default());
-    bencher.iter(move || {
-        for v in verified.chunks(verified.len() / NUM_THREADS) {
-            verified_sender.send(v.to_vec()).unwrap();
-        }
-        check_txs(&signal_receiver, txes);
-        bank.clear_signatures();
-        // make sure the tx last id is still registered
-        bank.register_entry_id(&mint.last_id());
-    });
-}

benches/ledger.rs

@@ -1,25 +0,0 @@
-#![feature(test)]
-extern crate solana;
-extern crate test;
-
-use solana::hash::{hash, Hash};
-use solana::ledger::{next_entries, reconstruct_entries_from_blobs, Block};
-use solana::signature::{Keypair, KeypairUtil};
-use solana::system_transaction::SystemTransaction;
-use solana::transaction::Transaction;
-use test::Bencher;
-
-#[bench]
-fn bench_block_to_blobs_to_block(bencher: &mut Bencher) {
-    let zero = Hash::default();
-    let one = hash(&zero.as_ref());
-    let keypair = Keypair::new();
-    let tx0 = Transaction::system_move(&keypair, keypair.pubkey(), 1, one, 0);
-    let transactions = vec![tx0; 10];
-    let entries = next_entries(&zero, 1, transactions);
-
-    bencher.iter(|| {
-        let blobs = entries.to_blobs();
-        assert_eq!(reconstruct_entries_from_blobs(blobs).unwrap(), entries);
-    });
-}

benches/sigverify.rs

@@ -1,23 +0,0 @@
-#![feature(test)]
-extern crate bincode;
-extern crate rayon;
-extern crate solana;
-extern crate test;
-
-use solana::packet::to_packets;
-use solana::sigverify;
-use solana::system_transaction::test_tx;
-use test::Bencher;
-
-#[bench]
-fn bench_sigverify(bencher: &mut Bencher) {
-    let tx = test_tx();
-
-    // generate packet vector
-    let batches = to_packets(&vec![tx; 128]);
-
-    // verify packets
-    bencher.iter(|| {
-        let _ans = sigverify::ed25519_verify(&batches);
-    })
-}

book/.gitattributes

@@ -0,0 +1 @@
+theme/highlight.js binary

book/README.md

@@ -0,0 +1,26 @@
+Building the Solana book
+---
+
+Install the book's dependnecies, build, and test the book:
+
+```bash
+$ ./build.sh
+```
+
+Run any Rust tests in the markdown:
+
+```bash
+$ make test
+```
+
+Render markdown as HTML:
+
+```bash
+$ make build
+```
+
+Render and view the book:
+
+```bash
+$ make open
+```

book/art/data-plane-fanout.bob

@@ -0,0 +1,19 @@
++------------------------------------------------------------------+
+|                                                                  |
+|   +-----------------+    Neighborhood 0    +-----------------+   |
+|   |                 +--------------------->+                 |   |
+|   |   Validator 1   |                      |   Validator 2   |   |
+|   |                 +<---------------------+                 |   |
+|   +--------+-+------+                      +------+-+--------+   |
+|            | |                                    | |            |
+|            | +-----------------------------+      | |            |
+|            |      +------------------------+------+ |            |
+|            |      |                        |        |            |
++------------------------------------------------------------------+
+             |      |                        |        |
+             v      v                        v        v
+   +---------+------+---+                  +-+--------+---------+
+   |                    |                  |                    |
+   |   Neighborhood 1   |                  |   Neighborhood 2   |
+   |                    |                  |                    |
+   +--------------------+                  +--------------------+

book/art/data-plane-neighborhood.bob

@@ -0,0 +1,25 @@
++---------------------------------------------------------------------------------------------------------+
+|                                           Neighborhood Above                                            |
+|                                                                                                         |
+|      +----------------+       +----------------+       +----------------+       +----------------+      |
+|      |                +------>+                +------>+                +------>+                |      |
+|      |   Neighbor 1   |       |   Neighbor 2   |       |   Neighbor 3   |       |   Neighbor 4   |      |
+|      |                +<------+                +<------+                +<------+                |      |
+|      +--+-------------+       +--+-------------+       +-----+----------+       +--+-------------+      |
+|         |                        |                           |                     |                    |
++---------------------------------------------------------------------------------------------------------+
+          |                        |                           |                     |
+          |                        |                           |                     |
+          |                        |                           |                     |
+          |                        |                           |                     |
+          |                        |                           |                     |
++---------------------------------------------------------------------------------------------------------+
+|         |                        |        Neighborhood Below |                     |                    |
+|         v                        v                           v                     v                    |
+|      +--+-------------+       +--+-------------+       +-----+----------+       +--+-------------+      |
+|      |                +------>+                +------>+                +------>+                |      |
+|      |   Neighbor 1   |       |   Neighbor 2   |       |   Neighbor 3   |       |   Neighbor 4   |      |
+|      |                +<------+                +<------+                +<------+                |      |
+|      +----------------+       +----------------+       +----------------+       +----------------+      |
+|                                                                                                         |
++---------------------------------------------------------------------------------------------------------+

book/art/data-plane-seeding.bob

@@ -0,0 +1,15 @@
+                          +--------------+
+                          |              |
+             +------------+    Leader    +------------+
+             |            |              |            |
+             |            +--------------+            |
+             v                                        v
++------------+----------------------------------------+------------+
+|                                                                  |
+|   +-----------------+    Neighborhood 0    +-----------------+   |
+|   |                 +--------------------->+                 |   |
+|   |   Validator 1   |                      |   Validator 2   |   |
+|   |                 +<---------------------+                 |   |
+|   +-----------------+                      +-----------------+   |
+|                                                                  |
++------------------------------------------------------------------+

book/art/data-plane.bob

@@ -0,0 +1,18 @@
+                                  +--------------------+
+                                  |                    |
+                         +--------+   Neighborhood 0   +----------+
+                         |        |                    |          |
+                         |        +--------------------+          |
+                         v                                        v
+               +---------+----------+                  +----------+---------+
+               |                    |                  |                    |
+               |   Neighborhood 1   |                  |   Neighborhood 2   |
+               |                    |                  |                    |
+               +---+-----+----------+                  +----------+-----+---+
+                   |     |                                        |     |
+                   v     v                                        v     v
++------------------+-+ +-+------------------+  +------------------+-+ +-+------------------+
+|                    | |                    |  |                    | |                    |
+|   Neighborhood 3   | |   Neighborhood 4   |  |   Neighborhood 5   | |   Neighborhood 6   |
+|                    | |                    |  |                    | |                    |
++--------------------+ +--------------------+  +--------------------+ +--------------------+

book/art/fork-generation.bob

@@ -0,0 +1,13 @@
+                                                                validator action
+               +----+                                           ----------------
+         |     | L1 |                  E1
+         |     +----+            /             \                vote(E1)
+         |     | L2 |          E2                x
+         |     +----+        /    \           /     \           vote(E2)
+  time   |     | L3 |     E3        x        E3'      x
+         |     +----+    /  \     /   \     /  \     /  \       slash(E3)
+         |     | L4 |  x     x  E4     x   x    x   x    x
+         |     +----+  |     |  |      |   |    |   |    |      vote(E4)
+         v     | L5 |  xx   xx  xx    E5  xx   xx  xx   xx
+               +----+                                           hang on to E4 and E5 for more...
+

book/art/forks-pruned.bob

@@ -0,0 +1,9 @@
+     1
+     |
+     2
+    /|
+   / |
+  |  |
+  |  4
+  |
+  5

book/art/forks-pruned2.bob

@@ -0,0 +1,11 @@
+ 1
+ |
+ 3
+ |\
+ | \
+ |  |
+ |  |
+ |  |
+ 6  |
+    |
+    7

book/art/forks.bob

@@ -0,0 +1,13 @@
+     1
+     |\
+     2 \
+    /|  |
+   / |  3
+  |  |  |\
+  |  4  | \
+  |     |  |
+  5     |  |
+        |  |
+        6  |
+           |
+           7

book/art/passive-staking-callflow.msc

@@ -0,0 +1,30 @@
+msc {
+  hscale="2.2";
+   VoteSigner,
+   Validator,
+   Cluster,
+   StakerX,
+   StakerY;
+
+   |||;
+  Validator box Validator [label="boot.."];
+
+  VoteSigner <:> Validator [label="register\n\n(optional)"];
+  Validator => Cluster [label="VoteState::Initialize(VoteSigner)"];
+  StakerX => Cluster [label="StakeState::Delegate(Validator)"];
+  StakerY => Cluster [label="StakeState::Delegate(Validator)"];
+
+     |||;
+  Validator box Cluster [label="\nvalidate\n"];
+  Validator => VoteSigner [label="sign(vote)"];
+  VoteSigner >> Validator [label="signed vote"];
+
+  Validator => Cluster [label="gossip(vote)"];
+  ...;
+  ... ;
+  Validator abox Validator [label="\nmax\nlockout\n"];
+       |||;
+  StakerX => Cluster [label="StakeState::RedeemCredits()"];
+  StakerY => Cluster [label="StakeState::RedeemCredits()"] ;
+
+}

book/art/runtime.bob

@@ -0,0 +1,10 @@
+.------------.     .-----------.    .---------------.    .--------------.    .-----------------------.
+| PoH verify +---> | sigverify +--->| lock accounts +--->| validate fee +--->| allocate new accounts +--->
+|     TVU    |     `-----------`    `---------------`    `--------------`    `-----------------------`
+`------------`
+
+    .---------------.    .---------.    .------------.    .-----------------.   .-----------------.
+--->| load accounts +--->| execute +--->| PoH record +--->| commit accounts +-->| unlock accounts |
+    `---------------`    `---------`    |    TPU     |    `-----------------`   `-----------------`
+                                        `------------`
+

book/art/sdk-tools.bob

@@ -0,0 +1,20 @@
+
+                            .----------------------------------------.
+                            |            Solana Runtime              |
+                            |                                        |
+                            |   .------------.   .------------.      |
+                            |   |            |   |            |      |
+                      .-------->|  Verifier  +-->|  Accounts  |      |
+                      |     |   |            |   |            |      |
+  .----------.        |     |   `------------`   `------------`      |
+  |          +--------`     |                           ^            |
+  |  Client  |              |             LoadAccounts  |            |
+  |          +--------.     |          .----------------`            |
+  `----------`        |     |          |                             |
+                      |     |   .------+-----.   .-------------.     |
+                      |     |   |            |   |             |     |
+                      `-------->|  Loader    +-->| Interpreter |     |
+                            |   |            |   |             |     |
+                            |   `------------`   `-------------`     |
+                            |                                        |
+                            `----------------------------------------`

book/art/spv-bank-merkle.bob

@@ -0,0 +1,18 @@
+                             +------------+
+                             | Bank-Merkle|
+                             +------------+
+                                ^      ^
+                               /        \
+               +-----------------+    +-------------+
+               | Bank-Diff-Merkle|    | Block-Merkle|
+               +-----------------+    +-------------+
+                     ^     ^
+                    /       \
+               +------+   +--------------------------+
+               | Hash |   | Previous Bank-Diff-Merkle|
+               +------+   +--------------------------+
+               ^      ^
+              /        \
+ +---------------+   +---------------+
+ | Hash(Account1)|   | Hash(Account2)|
+ +---------------+   +---------------+

book/art/spv-block-merkle.bob

@@ -0,0 +1,19 @@
+                                   +---------------+
+                                   |  Block-Merkle |
+                                   +---------------+
+                                  ^                ^
+                                 /                  \
+                      +-------------+            +-------------+
+                      | Entry-Merkle|            | Entry-Merkle|
+                      +-------------+            +-------------+
+                         ^                                 ^
+                        /                                   \
+                  +-------+                               +-------+
+                  |  Hash |                               |  Hash |
+                  +-------+                               +-------+
+                 ^        ^                                ^      ^
+                /         |                                |       \
+ +-----------------+   +-----------------+   +-----------------+   +---+
+ | Hash(T1, status)|   | Hash(T2, status)|   | Hash(T3, status)|   | 0 | 
+ +-----------------+   +-----------------+   +-----------------+   +---+
+

book/art/tpu.bob

@@ -0,0 +1,19 @@
+
+                                        .-------------.
+                                        | PoH Service |
+                                        `--------+----`
+                                            ^    |
+             .------------------------------|----|--------------------.
+             | TPU                          |    v                    |
+             |  .-------.  .-----------.  .-+-------.  .-----------.  |  .------------.
+ .---------. |  | Fetch |  | SigVerify |  | Banking |  | Broadcast |  |  | Downstream |
+ | Clients |--->| Stage |->| Stage     |->| Stage   |->| Stage     |---->| Validators |
+ `---------` |  |       |  |           |  |         |  |           |  |  |            |
+             |  `-------`  `-----------`  `----+----`  `-----------`  |  `------------`
+             |                                 |                      |
+             `---------------------------------|----------------------`
+                                               |
+                                               v
+                                            .------.
+                                            | Bank |
+                                            `------`

book/art/tvu.bob

@@ -0,0 +1,22 @@
+                                                  .--------.
+                                                  | Leader |
+                                                  `--------`
+                                                       ^
+                                                       |
+                  .------------------------------------|--------------------.
+                  |  TVU                               |                    |
+                  |                                    |                    |
+                  |  .-------.   .------------.   .----+---.   .---------.  |
+ .------------.   |  | Blob  |   | Retransmit |   | Replay |   | Storage |  |
+ | Upstream   +----->| Fetch +-->| Stage      +-->| Stage  +-->| Stage   |  |
+ | Validators |   |  | Stage |   |            |   |        |   |         |  |
+ `------------`   |  `-------`   `----+-------`   `----+---`   `---------`  |
+                  |        ^          |                |                    |
+                  |        |          |                |                    |
+                  `--------|----------|----------------|--------------------`
+                           |          |                |
+                           |          V                v
+                          .+-----------.            .------.
+                          | Gossip     |            | Bank |
+                          | Service    |            `------`
+                          `------------`

book/art/validator-proposal.bob

@@ -0,0 +1,60 @@
+
+                                 .------------.
+                                 | Upstream   |
+                                 | Validators |
+                                 `----+-------`
+                                      |
+                                      |
+             .-----------------------------------.
+             | Validator              |          |
+             |                        v          |
+             |  .-----------.    .------------.  |
+ .--------.  |  | Fetch     |    | Repair     |  |
+ | Client +---->| Stage     |    | Stage      |  |
+ `--------`  |  `---+-------`    `----+-------`  |
+             |      |                 |          |
+             |      v                 v          |
+             |  .-----------.    .------------.  |
+             |  | TPU       |<-->| Blockstore |  |
+             |  |           |    |            |  |
+             |  `-----------`    `----+-------`  |
+             |                        |          |
+             |                        v          |
+             |                   .------------.  |
+             |                   | Multicast  |  |
+             |                   | Stage      |  |
+             |                   `----+-------`  |
+             |                        |          |
+             `-----------------------------------`
+                                      |
+                                      v
+                                 .------------.
+                                 | Downstream |
+                                 | Validators |
+                                 `------------`
+
+
+
+                                 .------------.
+                                 | PoH        |
+                                 | Service    |
+                                 `-------+----`
+                                     ^   |
+                                     |   |
+             .-----------------------------------.
+             | TPU                   |   |       |
+             |                       |   v       |
+  .-------.  |  .-----------.    .---+--------.  |  .------------.
+  | Fetch +---->| SigVerify +--->| Banking    |<--->| Blockstore |
+  | Stage |  |  | Stage     |    | Stage      |  |  |            |
+  `-------`  |  `-----------`    `-----+------`  |  `------------`
+             |                         |         |
+             |                         |         |
+             `-----------------------------------`
+                                       |
+                                       v
+                                 .------------.
+                                 | Banktree   |
+                                 |            |
+                                 `------------`
+

book/art/validator.bob

@@ -0,0 +1,30 @@
+             .--------------------------------------.
+             |  Validator                           |
+             |                                      |
+ .--------.  |  .-------------------.               |
+ |        |---->|                   |               |
+ | Client |  |  | JSON RPC Service  |               |
+ |        |<----|                   |               |
+ `----+---`  |  `-------------------`               |
+      |      |     ^                                |
+      |      |     |     .----------------.         | .------------------.
+      |      |     |     | Gossip Service |<----------| Validators       |
+      |      |     |     `----------------`         | |                  |
+      |      |     |           ^                    | |                  |
+      |      |     |           |                    | |  .------------.  |
+      |      | .---+---.  .----+---. .-----------.  | |  |            |  |
+      |      | | Bank  |<-+ Replay | | BlobFetch |<------+ Upstream   |  |
+      |      | | Forks |  | Stage  | |  Stage    |  | |  | Validators |  |
+      |      | `-------`  `--------` `--+--------`  | |  |            |  |
+      |      |     ^              ^     |           | |  `------------`  |
+      |      |     |              |     v           | |                  |
+      |      |     |           .--+--------.        | |                  |
+      |      |     |           | Blocktree |        | |                  |
+      |      |     |           `-----------`        | |  .------------.  |
+      |      |     |                ^               | |  |            |  |
+      |      |     |                |               | |  | Downstream |  |
+      |      |  .--+--.     .-------+---.           | |  | Validators |  |
+      `-------->| TPU +---->| Broadcast +--------------->|            |  |
+             |  `-----`     | Stage     |           | |  `------------`  |
+             |              `-----------`           | `------------------`
+             `--------------------------------------`

book/book.toml

@@ -0,0 +1,10 @@
+[book]
+title = "Solana: Blockchain Rebuilt for Scale"
+authors = ["The Solana Team"]
+
+[build]
+build-dir = "html"
+create-missing = false
+
+[output.html]
+theme = "theme"

book/build-svg.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -e
+
+cd "$(dirname "$0")"
+
+make -j"$(nproc)" -B svg 
+
+if [[ -n $CI ]]; then
+  # In CI confirm that no svgs need to be built 
+  git diff --exit-code
+fi

book/build.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -e
+
+cd "$(dirname "$0")"
+
+make -j"$(nproc)" test

book/makefile

@@ -0,0 +1,43 @@
+BOB_SRCS=$(wildcard art/*.bob)
+MSC_SRCS=$(wildcard art/*.msc)
+MD_SRCS=$(wildcard src/*.md)
+
+SVG_IMGS=$(BOB_SRCS:art/%.bob=src/.gitbook/assets/%.svg) $(MSC_SRCS:art/%.msc=src/.gitbook/assets/%.svg)
+
+TARGET=html/index.html
+TEST_STAMP=src/tests.ok
+
+all: $(TARGET)
+
+svg: $(SVG_IMGS)
+
+test: $(TEST_STAMP)
+
+open: $(TEST_STAMP)
+	mdbook build --open
+
+watch: $(SVG_IMGS)
+	mdbook watch
+
+src/.gitbook/assets/%.svg: art/%.bob
+	@mkdir -p $(@D)
+	svgbob < $< > $@
+
+src/.gitbook/assets/%.svg: art/%.msc
+	@mkdir -p $(@D)
+	mscgen -T svg -i $< -o $@
+
+src/%.md: %.md
+	@mkdir -p $(@D)
+	@cp $< $@
+
+$(TEST_STAMP): $(TARGET)
+	mdbook test
+	touch $@
+
+$(TARGET): $(SVG_IMGS) $(MD_SRCS)
+	mdbook build
+
+clean:
+	rm -f $(SVG_IMGS) src/tests.ok
+	rm -rf html

book/src/.gitbook/assets/data-plane-fanout.svg

@@ -0,0 +1,183 @@
+<svg class="bob" font-family="arial" font-size="14" height="304" width="544" xmlns="http://www.w3.org/2000/svg">
+<defs>
+<marker id="triangle" markerHeight="8" markerWidth="8" orient="auto" refX="4" refY="2" viewBox="0 0 8 4">
+<polygon fill="black" points="0,0 0,4 8,2 0,0"/>
+</marker>
+<marker id="clear_triangle" markerHeight="10" markerWidth="10" orient="auto" refX="1" refY="7" viewBox="0 0 20 14">
+<polygon fill="none" points="2,2 2,12 18,7 2,2" stroke="black" stroke-width="2"/>
+</marker>
+<marker id="circle" markerHeight="5" markerWidth="5" orient="auto" refX="10" refY="10" viewBox="0 0 20 20">
+<circle cx="10" cy="10" fill="black" r="8"/>
+</marker>
+<marker id="square" markerHeight="5" markerWidth="5" orient="auto" refX="10" refY="10" viewBox="0 0 20 20">
+<rect fill="black" height="20" width="20" x="0" y="0"/>
+</marker>
+<marker id="open_circle" markerHeight="10" markerWidth="10" orient="auto" refX="10" refY="10" viewBox="0 0 20 20">
+<circle cx="10" cy="10" fill="white" r="4" stroke="black" stroke-width="2"/>
+</marker>
+<marker id="big_open_circle" markerHeight="20" markerWidth="20" orient="auto" refX="20" refY="20" viewBox="0 0 40 40">
+<circle cx="20" cy="20" fill="white" r="6" stroke="black" stroke-width="2"/>
+</marker>
+</defs>
+<style type="text/css">
+
+    line,path {
+      stroke: black;
+      stroke-width: 2;
+      stroke-opacity: 1;
+      fill-opacity: 1;
+      stroke-linecap: round;
+      stroke-linejoin: miter;
+    }
+    line.dashed {
+        stroke-dasharray: 5;
+    }
+    circle.solid {
+      fill:black;
+      stroke: black;
+      stroke-width: 2;
+      stroke-opacity: 1;
+      fill-opacity: 1;
+      stroke-linecap: round;
+      stroke-linejoin: miter;
+    }
+    circle.open {
+      fill:none;
+      stroke: black;
+      stroke-width: 2;
+      stroke-opacity: 1;
+      fill-opacity: 1;
+      stroke-linecap: round;
+      stroke-linejoin: miter;
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book/src/SUMMARY.md

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+# Table of contents
+
+* [Introduction](introduction.md)
+* [Terminology](terminology.md)
+* [Getting Started](getting-started/README.md)
+  * [Testnet Participation](getting-started/testnet-participation.md)
+  * [Example Client: Web Wallet](getting-started/webwallet.md)
+* [Programming Model](programs/README.md)
+  * [Example: Tic-Tac-Toe](programs/tictactoe.md)
+  * [Drones](programs/drones.md)
+* [A Solana Cluster](cluster/README.md)
+  * [Synchronization](cluster/synchronization.md)
+  * [Leader Rotation](cluster/leader-rotation.md)
+  * [Fork Generation](cluster/fork-generation.md)
+  * [Managing Forks](cluster/managing-forks.md)
+  * [Turbine Block Propagation](cluster/turbine-block-propagation.md)
+  * [Ledger Replication](cluster/ledger-replication.md)
+  * [Secure Vote Signing](cluster/vote-signing.md)
+  * [Stake Delegation and Rewards](cluster/stake-delegation-and-rewards.md)
+  * [Performance Metrics](cluster/performance-metrics.md)
+* [Anatomy of a Validator](validator/README.md)
+  * [TPU](validator/tpu.md)
+  * [TVU](validator/tvu/README.md)
+    * [Blocktree](validator/tvu/blocktree.md)
+  * [Gossip Service](validator/gossip.md)
+  * [The Runtime](validator/runtime.md)
+* [Anatomy of a Transaction](transaction.md)
+* [Running a Validator](running-validator/README.md)
+  * [Hardware Requirements](running-validator/validator-hardware.md)
+  * [Choosing a Testnet](running-validator/validator-testnet.md)
+  * [Installing the Validator Software](running-validator/validator-software.md)
+  * [Starting a Validator](running-validator/validator-start.md)
+  * [Staking](running-validator/validator-stake.md)
+  * [Monitoring a Validator](running-validator/validator-monitor.md)
+  * [Publishing Validator Info](running-validator/validator-info.md)
+  * [Troubleshooting](running-validator/validator-troubleshoot.md)
+  * [FAQ](running-validator/validator-faq.md)
+* [Running a Replicator](running-replicator.md)
+* [API Reference](api-reference/README.md)
+  * [Transaction](api-reference/transaction-api.md)
+  * [Instruction](api-reference/instruction-api.md)
+  * [Blockstreamer](api-reference/blockstreamer.md)
+  * [JSON RPC API](api-reference/jsonrpc-api.md)
+  * [JavaScript API](api-reference/javascript-api.md)
+  * [solana CLI](api-reference/cli.md)
+* [Accepted Design Proposals](proposals/README.md)
+  * [Ledger Replication](proposals/ledger-replication-to-implement.md)
+  * [Secure Vote Signing](proposals/vote-signing-to-implement.md)
+  * [Staking Rewards](proposals/staking-rewards.md)
+  * [Cluster Economics](proposals/ed_overview/README.md)
+    * [Validation-client Economics](proposals/ed_overview/ed_validation_client_economics/README.md)
+      * [State-validation Protocol-based Rewards](proposals/ed_overview/ed_validation_client_economics/ed_vce_state_validation_protocol_based_rewards.md)
+      * [State-validation Transaction Fees](proposals/ed_overview/ed_validation_client_economics/ed_vce_state_validation_transaction_fees.md)
+      * [Replication-validation Transaction Fees](proposals/ed_overview/ed_validation_client_economics/ed_vce_replication_validation_transaction_fees.md)
+      * [Validation Stake Delegation](proposals/ed_overview/ed_validation_client_economics/ed_vce_validation_stake_delegation.md)
+    * [Replication-client Economics](proposals/ed_overview/ed_replication_client_economics/README.md)
+      * [Storage-replication Rewards](proposals/ed_overview/ed_replication_client_economics/ed_rce_storage_replication_rewards.md)
+      * [Replication-client Reward Auto-delegation](proposals/ed_overview/ed_replication_client_economics/ed_rce_replication_client_reward_auto_delegation.md)
+    * [Economic Sustainability](proposals/ed_overview/ed_economic_sustainability.md)
+    * [Attack Vectors](proposals/ed_overview/ed_attack_vectors.md)
+    * [Economic Design MVP](proposals/ed_overview/ed_mvp.md)
+    * [References](proposals/ed_overview/ed_references.md)
+  * [Cluster Test Framework](proposals/cluster-test-framework.md)
+  * [Validator](proposals/validator-proposal.md)
+  * [Simple Payment and State Verification](proposals/simple-payment-and-state-verification.md)
+  * [Cross-Program Invocation](proposals/cross-program-invocation.md)
+* [Implemented Design Proposals](implemented-proposals/README.md)
+  * [Blocktree](implemented-proposals/blocktree.md)
+  * [Cluster Software Installation and Updates](implemented-proposals/installer.md)
+  * [Deterministic Transaction Fees](implemented-proposals/transaction-fees.md)
+  * [Tower BFT](implemented-proposals/tower-bft.md)
+  * [Leader-to-Leader Transition](implemented-proposals/leader-leader-transition.md)
+  * [Leader-to-Validator Transition](implemented-proposals/leader-validator-transition.md)
+  * [Passive Stake Delegation and Rewards](implemented-proposals/passive-stake-delegation-and-rewards.md)
+  * [Persistent Account Storage](implemented-proposals/persistent-account-storage.md)
+  * [Reliable Vote Transmission](implemented-proposals/reliable-vote-transmission.md)
+  * [Repair Service](implemented-proposals/repair-service.md)
+  * [Testing Programs](implemented-proposals/testing-programs.md)
+  * [Credit-only Accounts](implemented-proposals/credit-only-credit-debit-accounts.md)
+  * [Embedding the Move Langauge](implemented-proposals/embedding-move.md)
+

book/src/api-reference.md

@@ -0,0 +1,4 @@
+# API Reference
+
+The following sections contain API references material you may find useful
+when developing applications utilizing a Solana cluster.

book/src/api-reference/README.md

@@ -0,0 +1,4 @@
+# API Reference
+
+The following sections contain API references material you may find useful when developing applications utilizing a Solana cluster.
+

book/src/api-reference/blockstreamer.md

@@ -0,0 +1,28 @@
+# Blockstreamer
+
+Solana supports a node type called an _blockstreamer_. This fullnode variation is intended for applications that need to observe the data plane without participating in transaction validation or ledger replication.
+
+A blockstreamer runs without a vote signer, and can optionally stream ledger entries out to a Unix domain socket as they are processed. The JSON-RPC service still functions as on any other node.
+
+To run a blockstreamer, include the argument `no-signer` and \(optional\) `blockstream` socket location:
+
+```bash
+$ ./multinode-demo/validator-x.sh --no-signer --blockstream <SOCKET>
+```
+
+The stream will output a series of JSON objects:
+
+* An Entry event JSON object is sent when each ledger entry is processed, with the following fields:
+  * `dt`, the system datetime, as RFC3339-formatted string
+  * `t`, the event type, always "entry"
+  * `s`, the slot height, as unsigned 64-bit integer
+  * `h`, the tick height, as unsigned 64-bit integer
+  * `entry`, the entry, as JSON object
+* A Block event JSON object is sent when a block is complete, with the following fields:
+  * `dt`, the system datetime, as RFC3339-formatted string
+  * `t`, the event type, always "block"
+  * `s`, the slot height, as unsigned 64-bit integer
+  * `h`, the tick height, as unsigned 64-bit integer
+  * `l`, the slot leader id, as base-58 encoded string
+  * `id`, the block id, as base-58 encoded string
+