From 3568596c9e2a6331f60d8e25bff35546279a42e4 Mon Sep 17 00:00:00 2001 From: Thomas Munro Date: Sat, 13 Mar 2021 00:57:38 +1300 Subject: [PATCH v2 2/3] Log buffer stats after crash recovery. Author: Simon Riggs Discussion: https://postgr.es/m/CANP8%2BjLqwRoKQEvAi%3DiRhSwgL1JWNxiUhx%2BRyG-D82CE_qrDew%40mail.gmail.com --- src/backend/access/transam/xlog.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index 6e8e6cf1e4..b10b1b614a 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -7574,6 +7574,29 @@ StartupXLOG(void) (errmsg("redo done at %X/%X system usage: %s", LSN_FORMAT_ARGS(ReadRecPtr), pg_rusage_show(&ru0)))); + if (!InArchiveRecovery) + { + if (!INSTR_TIME_IS_ZERO(pgBufferUsage.blk_read_time)) + ereport(LOG, + (errmsg("crash recovery complete: wrote %ld buffers (%.1f%%) (%0.3f ms); " + "dirtied %ld buffers; read %ld buffers (%0.3f ms)", + pgBufferUsage.shared_blks_written, + (double) pgBufferUsage.shared_blks_written * 100 / NBuffers, + INSTR_TIME_GET_MILLISEC(pgBufferUsage.blk_write_time), + pgBufferUsage.shared_blks_dirtied, + pgBufferUsage.shared_blks_read, + INSTR_TIME_GET_MILLISEC(pgBufferUsage.blk_read_time) + ))); + else + ereport(LOG, + (errmsg("crash recovery complete: wrote %ld buffers (%.1f%%); " + "dirtied %ld buffers; read %ld buffers", + pgBufferUsage.shared_blks_written, + (double) pgBufferUsage.shared_blks_written * 100 / NBuffers, + pgBufferUsage.shared_blks_dirtied, + pgBufferUsage.shared_blks_read + ))); + } xtime = GetLatestXTime(); if (xtime) ereport(LOG, -- 2.30.1