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doc: Clarify units for io_combine_limit and io_max_combine_limit.

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If these parameters are set without units, the values are interpreted
as blocks. This detail was previously missing from the documentation,
so this commit adds it.

Backpatch to v17 where io_combine_limit was added.

Author: Karina Litskevich <litskevichkarina@gmail.com>
Reviewed-by: Chao Li <lic@highgo.com>
Reviewed-by: Xuneng Zhou <xunengzhou@gmail.com>
Reviewed-by: Fujii Masao <masao.fujii@gmail.com>
Discussion: https://postgr.es/m/CACiT8iZCDkz1bNYQNQyvGhXWJExSnJULRTYT894u4-Ti7Yh6jw@mail.gmail.com
Backpatch-through: 17
This commit is contained in:
Fujii Masao
2025-11-07 14:43:24 +09:00
parent 33727aff18
commit b841c91c7b
1 changed files with 2 additions and 0 deletions
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doc/src/sgml/config.sgml
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@@ -2724,6 +2724,8 @@ include_dir 'conf.d'
<listitem> <listitem>
<para> <para>
Controls the largest I/O size in operations that combine I/O. Controls the largest I/O size in operations that combine I/O.
If this value is specified without units, it is taken as blocks,
that is <symbol>BLCKSZ</symbol> bytes, typically 8kB.
The default is 128kB. The default is 128kB.
</para> </para>
</listitem> </listitem>