From d50366711e81103fcd3da2023f6b9bcb367a1c87 Mon Sep 17 00:00:00 2001
From: Steven Czabaniuk <steven@anza.xyz>
Date: Thu, 29 Feb 2024 00:40:45 -0600
Subject: [PATCH] Bound the blockstore_process threadpool to a max of 24
 threads

---
 ledger/src/blockstore_processor.rs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/ledger/src/blockstore_processor.rs b/ledger/src/blockstore_processor.rs
index 2e172870d6e5f7..ae70c8c015be99 100644
--- a/ledger/src/blockstore_processor.rs
+++ b/ledger/src/blockstore_processor.rs
@@ -86,11 +86,12 @@ struct ReplayEntry {
     starting_index: usize,
 }
 
-// get_max_thread_count to match number of threads in the old code.
-// see: https://github.com/solana-labs/solana/pull/24853
+// Max number of threads to allocate for executing transactions
+const MAX_THREAD_POOL_SIZE: usize = 24;
+
 lazy_static! {
     static ref PAR_THREAD_POOL: ThreadPool = rayon::ThreadPoolBuilder::new()
-        .num_threads(get_max_thread_count())
+        .num_threads(get_max_thread_count().min(MAX_THREAD_POOL_SIZE))
         .thread_name(|i| format!("solBstoreProc{i:02}"))
         .build()
         .unwrap();