From 72a70460d6966f9895ea874514c77a9405859057 Mon Sep 17 00:00:00 2001 From: Andrew Pogrebnoi Date: Tue, 17 Feb 2026 21:12:21 +0200 Subject: [PATCH v2 2/2] Fix XLOG buffers auto-tune for different XLOG_BLCKSZ Before this change, XLOG buffers calculation in relation to shared_buffers made sense only if XLOG_BLCKSZ the same as BLCKSZ --- src/backend/access/transam/xlog.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index 13ec6225b85..d37e85a4077 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -4694,7 +4694,7 @@ XLOGChooseNumBuffers(void) { int xbuffers; - xbuffers = NBuffers / 32; + xbuffers = ((NBuffers * BLCKSZ) / XLOG_BLCKSZ) / 32; if (xbuffers > (wal_segment_size / XLOG_BLCKSZ)) xbuffers = (wal_segment_size / XLOG_BLCKSZ); if (xbuffers < 8) -- 2.43.0