From 03ed334ebbf31f343d5be595b922ae97dc7c211f Mon Sep 17 00:00:00 2001
From: Dmitri Makarov <dmakarov@alumni.stanford.edu>
Date: Mon, 14 Mar 2022 18:41:03 -0700
Subject: [PATCH] Double the chunk size for sending the program binary data in
 tx

---
 programs/bpf/tests/programs.rs | 20 ++++++++++----------
 runtime/src/loader_utils.rs    |  6 ++++--
 2 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/programs/bpf/tests/programs.rs b/programs/bpf/tests/programs.rs
index d0fc4ec2ab..93c4a4faf0 100644
--- a/programs/bpf/tests/programs.rs
+++ b/programs/bpf/tests/programs.rs
@@ -113,7 +113,7 @@ fn write_bpf_program(
     program_keypair: &Keypair,
     elf: &[u8],
 ) {
-    let chunk_size = 256; // Size of chunk just needs to fit into tx
+    let chunk_size = 512; // Size of chunk just needs to fit into tx
     let mut offset = 0;
     for chunk in elf.chunks(chunk_size) {
         let instruction =
@@ -1437,20 +1437,20 @@ fn assert_instruction_count() {
     {
         programs.extend_from_slice(&[
             ("solana_bpf_rust_128bit", 584),
-            ("solana_bpf_rust_alloc", 4559),
-            ("solana_bpf_rust_custom_heap", 458),
+            ("solana_bpf_rust_alloc", 4459),
+            ("solana_bpf_rust_custom_heap", 469),
             ("solana_bpf_rust_dep_crate", 2),
-            ("solana_bpf_rust_external_spend", 327),
+            ("solana_bpf_rust_external_spend", 338),
             ("solana_bpf_rust_iter", 108),
             ("solana_bpf_rust_many_args", 1289),
-            ("solana_bpf_rust_mem", 2217),
-            ("solana_bpf_rust_membuiltins", 1705),
-            ("solana_bpf_rust_noop", 315),
+            ("solana_bpf_rust_mem", 2118),
+            ("solana_bpf_rust_membuiltins", 1539),
+            ("solana_bpf_rust_noop", 326),
             ("solana_bpf_rust_param_passing", 146),
-            ("solana_bpf_rust_rand", 418),
-            ("solana_bpf_rust_sanity", 52170),
+            ("solana_bpf_rust_rand", 429),
+            ("solana_bpf_rust_sanity", 9139),
             ("solana_bpf_rust_secp256k1_recover", 25707),
-            ("solana_bpf_rust_sha", 25338),
+            ("solana_bpf_rust_sha", 26390),
         ]);
     }
 
diff --git a/runtime/src/loader_utils.rs b/runtime/src/loader_utils.rs
index 6c5196300c..fda5ebe2fa 100644
--- a/runtime/src/loader_utils.rs
+++ b/runtime/src/loader_utils.rs
@@ -12,6 +12,8 @@ use {
     },
 };
 
+const CHUNK_SIZE: usize = 512; // Size of chunk just needs to fit into tx
+
 pub fn load_program<T: Client>(
     bank_client: &T,
     from_keypair: &Keypair,
@@ -39,7 +41,7 @@ pub fn load_program<T: Client>(
         )
         .unwrap();
 
-    let chunk_size = 256; // Size of chunk just needs to fit into tx
+    let chunk_size = CHUNK_SIZE;
     let mut offset = 0;
     for chunk in program.chunks(chunk_size) {
         let instruction =
@@ -91,7 +93,7 @@ pub fn load_buffer_account<T: Client>(
         )
         .unwrap();
 
-    let chunk_size = 256; // Size of chunk just needs to fit into tx
+    let chunk_size = CHUNK_SIZE;
     let mut offset = 0;
     for chunk in program.chunks(chunk_size) {
         let message = Message::new(