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Fix slow to free when low lock contention

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John Sully 2023-08-25 23:00:14 +00:00 committed by John Sully
parent f435218ed9
commit 820482bffe
1 changed files with 1 additions and 1 deletions
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2
src/server.cpp
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@ -2134,7 +2134,7 @@ void databasesCron(bool fMainThread) {
::dict *dict = g_pserver->db[rehash_db]->dictUnsafeKeyOnly();
/* Are we async rehashing? And if so is it time to re-calibrate? */
/* The recalibration limit is a prime number to ensure balancing across threads */
if (rehashes_per_ms > 0 && async_rehashes < 131 && !cserver.active_defrag_enabled && cserver.cthreads > 1 && dictSize(dict) > 2048 && dictIsRehashing(dict) && !g_pserver->loading) {
if (rehashes_per_ms > 0 && async_rehashes < 131 && !cserver.active_defrag_enabled && cserver.cthreads > 1 && dictSize(dict) > 2048 && dictIsRehashing(dict) && !g_pserver->loading && aeLockContention() > 1) {
serverTL->rehashCtl = dictRehashAsyncStart(dict, rehashes_per_ms * ((1000 / g_pserver->hz) / 10)); // Estimate 10% CPU time spent in lock contention
if (serverTL->rehashCtl)
++async_rehashes;