From: | "Andres Retzlaff" <andres_retzlaff(at)hotmail(dot)com> |
---|---|
To: | magnus(at)hagander(dot)net |
Cc: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Usage up to 50% CPU |
Date: | 2007-04-27 08:10:48 |
Message-ID: | BAY141-F1845ACAADC609F4311EA888B4F0@phx.gbl |
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Lists: | pgsql-performance |
Hi Magnus,
in this case each CPU goes up to 50%, giveing me 50% total usage. I was
specting as you say 1 query 100% cpu.
Any ideas?
Andrew
On Fri, Apr 27, 2007 at 04:43:06AM +0000, Andres Retzlaff wrote:
> Hi,
>
> I have pg 8.1.4 running in
> Windows XP Pro
> wirh a Pentium D
>
> and I notice that I can not use more than 50% of the cpus (Pentium D has
2
> cpus), how can I change the settings to use the 100% of it.
A single query will only use one CPU. If you have multiple parallell
clients, they will use the differnt CPUs.
//Magnus
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