* uses Option<Slot> for SlotMeta.parent_slot (#21808)
SlotMeta.parent_slot for the head of a detached chain of slots is
unknown and that is indicated by u64::MAX which lacks type-safety:
https://github.com/solana-labs/solana/blob/6c108c8fc/ledger/src/blockstore_meta.rs#L203-L205
The commit changes the type to Option<Slot>. Backward compatibility is
maintained by customizing serde serialize/deserialize implementations.
(cherry picked from commit 8d980f07ba)
# Conflicts:
# core/src/repair_generic_traversal.rs
# ledger-tool/src/main.rs
# ledger/src/blockstore.rs
* removes mergify merge conflicts
Co-authored-by: behzad nouri <behzadnouri@gmail.com>
* Ledger-tool: only require ledger dir when necessary (#21575)
* Don't canonicalize ledger_path unless ledger_path will be used
* Single use statement
(cherry picked from commit 2b269dbe0e)
# Conflicts:
# ledger-tool/src/main.rs
* Fix conflicts
Co-authored-by: Tyera Eulberg <teulberg@gmail.com>
Co-authored-by: Tyera Eulberg <tyera@solana.com>
* Add function for changing thread's nice value
Linux only.
* Add validator option to change niceness of snapshot packager thread
* Add validator option to change niceness of RPC server threads
Fixes https://github.com/solana-labs/solana/issues/14556
* Run `./scripts/cargo-for-all-lock-files.sh tree`
* - cost_tracker is data member of a bank, it can report metrics when bank is frozen (#20802)
- removed cost_tracker_stats and histogram
- move stats reporting outside of bank freeze
(cherry picked from commit c2bfce90b3)
# Conflicts:
# Cargo.lock
# core/src/banking_stage.rs
# core/src/replay_stage.rs
# core/src/tvu.rs
# ledger-tool/src/main.rs
# programs/bpf/Cargo.lock
# runtime/Cargo.toml
# runtime/src/cost_tracker.rs
* manual fix merge conflicts
Co-authored-by: Tao Zhu <82401714+taozhu-chicago@users.noreply.github.com>
Co-authored-by: Tao Zhu <tao@solana.com>
* - make cost_tracker a member of bank, remove shared instance from TPU; (#20627)
- decouple cost_model from cost_tracker; allowing one cost_model
instance being shared within a validator;
- update cost_model api to calculate_cost(&self...)->transaction_cost
(cherry picked from commit 7496b5784b)
# Conflicts:
# core/src/banking_stage.rs
# ledger-tool/src/main.rs
# runtime/src/bank.rs
# runtime/src/cost_model.rs
# runtime/src/cost_tracker.rs
* manual fix merge conflicts
Co-authored-by: Tao Zhu <82401714+taozhu-chicago@users.noreply.github.com>
Co-authored-by: Tao Zhu <tao@solana.com>
* - move cost tracker into bank, so each bank has its own cost tracker; (#20527)
- move related modules to runtime
(cherry picked from commit 005d6863fd)
# Conflicts:
# Cargo.lock
# core/benches/banking_stage.rs
# core/src/banking_stage.rs
# core/src/lib.rs
# core/src/tvu.rs
# ledger-tool/src/main.rs
# ledger/src/blockstore_processor.rs
# programs/bpf/Cargo.lock
# runtime/Cargo.toml
# runtime/src/cost_model.rs
* manual fix merge conflicts
Co-authored-by: Tao Zhu <82401714+taozhu-chicago@users.noreply.github.com>
Co-authored-by: Tao Zhu <tao@solana.com>
Merge AccountsDb plugin framework to v1.8 (#20518)
Summary of Changes
Create a plugin mechanism in the accounts update path so that accounts data can be streamed out to external data stores (be it Kafka or Postgres). The plugin mechanism allows
Data stores of connection strings/credentials to be configured,
Accounts with patterns to be streamed
PostgreSQL implementation of the streaming for different destination stores to be plugged in.
The code comprises 4 major parts:
accountsdb-plugin-intf: defines the plugin interface which concrete plugin should implement.
accountsdb-plugin-manager: manages the load/unload of plugins and provide interfaces which the validator can notify of accounts update to plugins.
accountsdb-plugin-postgres: the concrete plugin implementation for PostgreSQL
The validator integrations: updated streamed right after snapshot restore and after account update from transaction processing or other real updates.
The plugin is optionally loaded on demand by new validator CLI argument -- there is no impact if the plugin is not loaded.
* Cost Model to limit transactions which are not parallelizeable (#16694)
* * Add following to banking_stage:
1. CostModel as immutable ref shared between threads, to provide estimated cost for transactions.
2. CostTracker which is shared between threads, tracks transaction costs for each block.
* replace hard coded program ID with id() calls
* Add Account Access Cost as part of TransactionCost. Account Access cost are weighted differently between read and write, signed and non-signed.
* Establish instruction_execution_cost_table, add function to update or insert instruction cost, unit tested. It is read-only for now; it allows Replay to insert realtime instruction execution costs to the table.
* add test for cost_tracker atomically try_add operation, serves as safety guard for future changes
* check cost against local copy of cost_tracker, return transactions that would exceed limit as unprocessed transaction to be buffered; only apply bank processed transactions cost to tracker;
* bencher to new banking_stage with max cost limit to allow cost model being hit consistently during bench iterations
* replay stage feed back program cost (#17731)
* replay stage feeds back realtime per-program execution cost to cost model;
* program cost execution table is initialized into empty table, no longer populated with hardcoded numbers;
* changed cost unit to microsecond, using value collected from mainnet;
* add ExecuteCostTable with fixed capacity for security concern, when its limit is reached, programs with old age AND less occurrence will be pushed out to make room for new programs.
* investigate system performance test degradation (#17919)
* Add stats and counter around cost model ops, mainly:
- calculate transaction cost
- check transaction can fit in a block
- update block cost tracker after transactions are added to block
- replay_stage to update/insert execution cost to table
* Change mutex on cost_tracker to RwLock
* removed cloning cost_tracker for local use, as the metrics show clone is very expensive.
* acquire and hold locks for block of TXs, instead of acquire and release per transaction;
* remove redundant would_fit check from cost_tracker update execution path
* refactor cost checking with less frequent lock acquiring
* avoid many Transaction_cost heap allocation when calculate cost, which
is in the hot path - executed per transaction.
* create hashmap with new_capacity to reduce runtime heap realloc.
* code review changes: categorize stats, replace explicit drop calls, concisely initiate to default
* address potential deadlock by acquiring locks one at time
* Persist cost table to blockstore (#18123)
* Add `ProgramCosts` Column Family to blockstore, implement LedgerColumn; add `delete_cf` to Rocks
* Add ProgramCosts to compaction excluding list alone side with TransactionStatusIndex in one place: `excludes_from_compaction()`
* Write cost table to blockstore after `replay_stage` replayed active banks; add stats to measure persist time
* Deletes program from `ProgramCosts` in blockstore when they are removed from cost_table in memory
* Only try to persist to blockstore when cost_table is changed.
* Restore cost table during validator startup
* Offload `cost_model` related operations from replay main thread to dedicated service thread, add channel to send execute_timings between these threads;
* Move `cost_update_service` to its own module; replay_stage is now decoupled from cost_model.
* log warning when channel send fails (#18391)
* Aggregate cost_model into cost_tracker (#18374)
* * aggregate cost_model into cost_tracker, decouple it from banking_stage to prevent accidental deadlock. * Simplified code, removed unused functions
* review fixes
* update ledger tool to restore cost table from blockstore (#18489)
* update ledger tool to restore cost model from blockstore when compute-slot-cost
* Move initialize_cost_table into cost_model, so the function can be tested and shared between validator and ledger-tool
* refactor and simplify a test
* manually fix merge conflicts
* Per-program id timings (#17554)
* more manual fixing
* solve a merge conflict
* featurize cost model
* more merge fix
* cost model uses compute_unit to replace microsecond as cost unit
(#18934)
* Reject blocks for costs above the max block cost (#18994)
* Update block max cost limit to fix performance regession (#19276)
* replace function with const var for better readability (#19285)
* Add few more metrics data points (#19624)
* periodically report sigverify_stage stats (#19674)
* manual merge
* cost model nits (#18528)
* Accumulate consumed units (#18714)
* tx wide compute budget (#18631)
* more manual merge
* ignore zerorize drop security
* - update const cost values with data collected by #19627
- update cost calculation to closely proposed fee schedule #16984
* add transaction cost histogram metrics (#20350)
* rebase to 1.7.15
* add tx count and thread id to stats (#20451)
each stat reports and resets when slot changes
* remove cost_model feature_set
* ignore vote transactions from cost model
Co-authored-by: sakridge <sakridge@gmail.com>
Co-authored-by: Jeff Biseda <jbiseda@gmail.com>
Co-authored-by: Jack May <jack@solana.com>
