| From: | Shridhar Daithankar <shridhar_daithankar(at)myrealbox(dot)com> |
|---|---|
| To: | Benjamin Bostow <ben(at)viatornetworks(dot)com>, Performance <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: High Processor consumption |
| Date: | 2003-11-20 05:58:13 |
| Message-ID: | 3FBC57F5.8070705@myrealbox.com |
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| Lists: | pgsql-performance |
Benjamin Bostow wrote:
> I haven't modified any of the setting. I did try changing shmmax from
> 32MB to 256MB but didn't see much change in the processor usage. The
> init script that runs to start the server uses the following:
> su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl -D $PGDATA -p
> /usr/bin/postmaster -o \"-i -N 128 -B 256\" start > /dev/null 2>&1" <
> /dev/null
Lol.. -B 256 does not mean 256MB of buffers. It means 2MB of buffers. Each
buffer is of 8K. Try upping it to a 1000 or 2000
>
> I haven't modified postgresql.conf yet but am going through a book on
> performance tuning the server. If you can provide any suggestions or
> help as I am new to postgres it would be appreciated.
http://www.varlena.com/varlena/GeneralBits/Tidbits/perf.html
HTH
Shridhar
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