Re: Slow Performance

From: "Gavin M(dot) Roy" <gmr(at)readysetnet(dot)com>
To: Alfred Perlstein <bright(at)wintelcom(dot)net>
Cc: pgsql list <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Slow Performance
Date: 2000-10-24 20:22:46
Message-ID: 39F5EF96.AB93001@readysetnet.com
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Thanks, I am now running -B 32768 and Postgres is nicely occupying 800+ megs of
memory. We're doing testing now to see how it effects performance.

Alfred Perlstein wrote:

> * Gavin M. Roy <gmr(at)readysetnet(dot)com> [001024 13:12] wrote:
> > Am looking here:
> > http://www.postgresql.org/devel-corner/docs/admin/runtime-config.htm
> >
> > but not seeing anything on shared memory. Do you know the configuration
> > option for this?
>
> -B <some number of pages>
>
> >
> > Gavin
> >
> > Alfred Perlstein wrote:
> >
> > > * Gavin M. Roy <gmr(at)readysetnet(dot)com> [001024 11:09] wrote:
> > > > I have a monster db server, with 2 gigs of memory all for PostgresQL
> > > > 7.0.2. The machine is a PIII - 800 Zeon with 10,000 RPM SCSI drives. I
> > > > have a database with about 8 tables with over 1.5 Million rows. It's
> > > > running slower than I like when running simple sql queries on one and
> > > > two tables. When I look at postgres I notice it's only using 80 megs.
> > > >
> > > > 1) Would increasing the memory postgresql is using increase performance?
> > > >
> > > > Here's my current command line:
> > > > /usr/local/pgsql/bin/postmaster -S -D /usr/local/pgsql/data -i -o '-F'
> > > > -B 2048 -N 1024 &
> > >
> > > Yes, try running a shared memorry segment of at least 256 megs.
> > >
> > > > 2) Are there any other suggestions to how I run Postgresql to increase
> > > > my performance issues?
> > >
> > > Make sure you periodically do a 'vacuum analyze' on the tables and
> > > make sure you have proper indexing.
> > >
> > > --
> > > -Alfred Perlstein - [bright(at)wintelcom(dot)net|alfred(at)freebsd(dot)org]
> > > "I have the heart of a child; I keep it in a jar on my desk."
>
> --
> -Alfred Perlstein - [bright(at)wintelcom(dot)net|alfred(at)freebsd(dot)org]
> "I have the heart of a child; I keep it in a jar on my desk."

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