| From: | Scott Marlowe <smarlowe(at)g2switchworks(dot)com> |
|---|---|
| To: | Jérôme BENOIS <benois(at)argia-engineering(dot)fr> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: High CPU Load |
| Date: | 2006-09-14 14:21:50 |
| Message-ID: | 1158243710.24726.12.camel@state.g2switchworks.com |
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| Thread: | |
| Lists: | pgsql-performance |
On Thu, 2006-09-14 at 09:17, Jérôme BENOIS wrote:
> Hi Tom,
>
> Le jeudi 14 septembre 2006 à 10:13 -0400, Tom Lane a écrit :
> > =?ISO-8859-1?Q?J=E9r=F4me?= BENOIS <benois(at)argia-engineering(dot)fr> writes:
> > > I migrated Postgres server from 7.4.6 to 8.1.4, But my server is
> > > completely full, by moment load average > 40
> >
> > Did you remember to ANALYZE the whole database after reloading it?
> > pg_dump/reload won't by itself regenerate statistics.
> >
> > regards, tom lane
> I tested, dump + restore + vaccumdb --analyze on all databases but no change ...
OK, set your db to log queries that take more than a few seconds to
run. Execute those queries by hand with an explain analyze in front and
post the output here.
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