diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/config.sgml | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index a3331bdef6e..0e49ba32178 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.132 2007/07/24 01:53:55 alvherre Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.133 2007/07/24 04:54:08 tgl Exp $ --> <chapter Id="runtime-config"> <title>Server Configuration</title> @@ -1413,7 +1413,7 @@ SET ENABLE_SEQSCAN TO OFF; </para> </listitem> </varlistentry> - + <varlistentry id="guc-wal-buffers" xreflabel="wal_buffers"> <term><varname>wal_buffers</varname> (<type>integer</type>)</term> <indexterm> @@ -1438,7 +1438,27 @@ SET ENABLE_SEQSCAN TO OFF; </para> </listitem> </varlistentry> - + + <varlistentry id="guc-wal-writer-delay" xreflabel="wal_writer_delay"> + <term><varname>wal_writer_delay</varname> (<type>integer</type>)</term> + <indexterm> + <primary><varname>wal_writer_delay</> configuration parameter</primary> + </indexterm> + <listitem> + <para> + Specifies the delay between activity rounds for the WAL writer. + In each round the writer will flush WAL to disk. It then sleeps for + <varname>wal_writer_delay</> milliseconds, and repeats. The default + value is 200 milliseconds (<literal>200ms</>). Note that on many + systems, the effective resolution of sleep delays is 10 milliseconds; + setting <varname>wal_writer_delay</> to a value that is 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 + <filename>postgresql.conf</> file or on the server command line. + </para> + </listitem> + </varlistentry> + <varlistentry id="guc-commit-delay" xreflabel="commit_delay"> <term><varname>commit_delay</varname> (<type>integer</type>)</term> <indexterm> @@ -1521,7 +1541,7 @@ SET ENABLE_SEQSCAN TO OFF; </indexterm> <listitem> <para> - Specifies the target length of checkpoints, as a fraction of + Specifies the target length of checkpoints, as a fraction of the checkpoint interval. The default is 0.5. This parameter can only be set in the <filename>postgresql.conf</> |