From: Jim C. Nasby <jnasby@pervasive.com>
To: Domenico - Sal. F.lli Riva <domenico.mozzanica@fratelliriva.it>
Cc: pgsql-performance@postgresql.org
Subject: Re: pgsql_tmp and postgres settings
Date: Fri, 9 Jun 2006 10:59:53 -0500
Message-ID: <20060609155953.GX45331@pervasive.com> (raw)
In-Reply-To: <20060609122948.6B7419FA621@postgresql.org>
References: <20060609122948.6B7419FA621@postgresql.org>
On Fri, Jun 09, 2006 at 02:23:04PM +0200, Domenico - Sal. F.lli Riva wrote:
> Hello,
>
> During insert or update, potgresql write in pgsql_tmp directory and so
> performance are very poor.
pgsql_tmp is used if a query runs out of work_mem, so you can try
increasing that.
> My configuration is:
>
> Work mem 10240
>
> Effective_cache_size 30000
You're off by a factor of 10.
> Shared buffers 9000
I'd suggest bumping that up to at least 30000.
> Postgresql (RPM from official website) 8.1.0
You should upgrade to 8.1.4. There's a number of data loss bugs waiting
to bite you.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
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To: pgsql-performance@postgresql.org
Cc: jnasby@pervasive.com, domenico.mozzanica@fratelliriva.it
Subject: Re: pgsql_tmp and postgres settings
In-Reply-To: <20060609155953.GX45331@pervasive.com>
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