diff options
| author | Tom Lane | 2004-10-17 22:01:51 +0000 |
|---|---|---|
| committer | Tom Lane | 2004-10-17 22:01:51 +0000 |
| commit | 4347cc2392a75dec1d5e83f8b60911597fc602d9 (patch) | |
| tree | 291a95ed8fc4a81871ca98848ec69007e1078663 /doc/src | |
| parent | bdbe9c9f061439f180976b75e4be50f5ea64d07f (diff) | |
Allow background writing to be shut down by setting limit values to zero.
This does not disable the bgwriter process: it still has to wake up often
enough to collect fsync requests from backends in a timely fashion. But
it responds to the recent gripe about not being able to prevent the disk
from being spun up constantly.
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/runtime.sgml | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index f82fbc877de..b4a84616f54 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1,5 +1,5 @@ <!-- -$PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.288 2004/10/15 16:50:29 momjian Exp $ +$PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.289 2004/10/17 22:01:49 tgl Exp $ --> <Chapter Id="runtime"> @@ -1305,7 +1305,9 @@ SET ENABLE_SEQSCAN TO OFF; <varname>bgwriter_maxpages</varname> reduce the extra I/O load caused by the background writer, but leave more work to be done at checkpoint time. To reduce load spikes at checkpoints, - increase the values. + increase the values. To disable background writing entirely, + set <varname>bgwriter_percent</varname> and/or + <varname>bgwriter_maxpages</varname> to zero. </para> </sect3> |