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doc: vacuum_cost_limit controls when vacuum_cost_delay happens 

Mention this relationship.

Reported-by: Martín Marqués

Discussion: https://postgr.es/m/CABeG9LtsAVP4waKngUYo-HAiiowcb8xEjQvDDfhX_nFi5SJ4jw@mail.gmail.com

Author: Martín Marqués

Backpatch-through: master
This commit is contained in:
Bruce Momjian 2023-11-21 15:32:04 -05:00
parent afc3b0143c
commit 3af101ce8b
1 changed files with 4 additions and 4 deletions
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8
doc/src/sgml/config.sgml
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@ -2303,8 +2303,8 @@ include_dir 'conf.d'
</term> </term>
<listitem> <listitem>
<para> <para>
The accumulated cost that will cause the vacuuming process to sleep. This is the accumulated cost that will cause the vacuuming process to sleep
The default value is 200. for <varname>vacuum_cost_delay</varname>. The default is 200.
</para> </para>
</listitem> </listitem>
</varlistentry> </varlistentry>
@ -2364,7 +2364,7 @@ include_dir 'conf.d'
<varname>bgwriter_delay</varname>. <varname>bgwriter_delay</varname>.
If this value is specified without units, it is taken as milliseconds. If this value is specified without units, it is taken as milliseconds.
The default value is 200 The default value is 200
milliseconds (<literal>200ms</literal>). Note that on many systems, the milliseconds (<literal>200ms</literal>). Note that on some systems, the
effective resolution of sleep delays is 10 milliseconds; setting effective resolution of sleep delays is 10 milliseconds; setting
<varname>bgwriter_delay</varname> to a value that is not a multiple of 10 <varname>bgwriter_delay</varname> to a value that is not a multiple of 10
might have the same results as setting it to the next higher multiple might have the same results as setting it to the next higher multiple
@ -3258,7 +3258,7 @@ include_dir 'conf.d'
flushed to disk. flushed to disk.
If this value is specified without units, it is taken as milliseconds. If this value is specified without units, it is taken as milliseconds.
The default value is 200 milliseconds (<literal>200ms</literal>). Note that The default value is 200 milliseconds (<literal>200ms</literal>). Note that
on many systems, the effective resolution of sleep delays is 10 on some systems, the effective resolution of sleep delays is 10
milliseconds; setting <varname>wal_writer_delay</varname> to a value that is milliseconds; setting <varname>wal_writer_delay</varname> to a value that is
not a multiple of 10 might have the same results as setting it to the not a multiple of 10 might have the same results as setting it to the
next higher multiple of 10. This parameter can only be set in the next higher multiple of 10. This parameter can only be set in the