From b1f11c026fde0b8a2de5b95cc3abed72004cdc41 Mon Sep 17 00:00:00 2001 From: Karina Litskevich Date: Wed, 8 Oct 2025 14:06:29 +0300 Subject: [PATCH v2 1/2] doc: Improve description of io_combine_limit and io_max_combine_limit --- doc/src/sgml/config.sgml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 06d1e4403b5..e432c43449b 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -2697,6 +2697,8 @@ include_dir 'conf.d' This parameter can only be set in the postgresql.conf file or on the server command line. + If this value is specified without units, it is taken as blocks, + that is BLCKSZ bytes, typically 8kB. The maximum possible size depends on the operating system and block size, but is typically 1MB on Unix and 128kB on Windows. The default is 128kB. @@ -2716,6 +2718,8 @@ include_dir 'conf.d' higher than the io_max_combine_limit parameter, the lower value will silently be used instead, so both may need to be raised to increase the I/O size. + If this value is specified without units, it is taken as blocks, + that is BLCKSZ bytes, typically 8kB. The maximum possible size depends on the operating system and block size, but is typically 1MB on Unix and 128kB on Windows. The default is 128kB. -- 2.34.1