From 67c07aa5d3ad72028bb2f2fd7c4e327e2e81a68a Mon Sep 17 00:00:00 2001
From: "mergify[bot]" <37929162+mergify[bot]@users.noreply.github.com>
Date: Fri, 4 Jun 2021 18:12:48 +0000
Subject: [PATCH] increase bin count for hash scan (#17562) (#17747)

(cherry picked from commit 5197454fea67804769a227cdb626b627fb75438b)

Co-authored-by: Jeff Washington (jwash) <75863576+jeffwashington@users.noreply.github.com>
---
 runtime/src/accounts_db.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/runtime/src/accounts_db.rs b/runtime/src/accounts_db.rs
index e5f088a29b..6695f3eecc 100644
--- a/runtime/src/accounts_db.rs
+++ b/runtime/src/accounts_db.rs
@@ -4389,7 +4389,7 @@ impl AccountsDb {
         let mut scan_and_hash = move || {
             // When calculating hashes, it is helpful to break the pubkeys found into bins based on the pubkey value.
             // More bins means smaller vectors to sort, copy, etc.
-            const PUBKEY_BINS_FOR_CALCULATING_HASHES: usize = 64;
+            const PUBKEY_BINS_FOR_CALCULATING_HASHES: usize = 256;
 
             // # of passes should be a function of the total # of accounts that are active.
             // higher passes = slower total time, lower dynamic memory usage