| From: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com> |
|---|---|
| To: | "Domenico - Sal(dot) F(dot)lli Riva" <domenico(dot)mozzanica(at)fratelliriva(dot)it> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: pgsql_tmp and postgres settings |
| Date: | 2006-06-09 15:59:53 |
| Message-ID: | 20060609155953.GX45331@pervasive.com |
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| Lists: | pgsql-performance |
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(at)pervasive(dot)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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