Re: High CPU Load - Mailing list pgsql-performance

From Guillaume Smet
Subject Re: High CPU Load
Date
Msg-id 1d4e0c10609180848u153c8c20n3858a559b43a3146@mail.gmail.com
Whole thread Raw
In response to Re: High CPU Load  (Jérôme BENOIS <benois@argia-engineering.fr>)
List pgsql-performance
On 9/18/06, Jérôme BENOIS <benois@argia-engineering.fr> wrote:
>         Tomorrow morning i plan to add 2Go RAM in order to test difference with
> my actual config.

I don't think more RAM will change anything if you don't swap at all.
You can try to set shared_buffers lower (try 32768 and 16384) but I
don't think it will change anything in 8.1.

The only thing left IMHO is that 8.1 is choosing a bad plan which
consumes a lot of CPU for at least a query.

When you analyze your logs, did you see a particularly slow query? Can
you compare query log analysis from your old server and your new one?

--
Guillaume

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