Re: High context switches occurring - Mailing list pgsql-performance

From Scott Marlowe
Subject Re: High context switches occurring
Date
Msg-id 1132691867.28788.42.camel@state.g2switchworks.com
Whole thread Raw
In response to Re: High context switches occurring  ("Anjan Dave" <adave@vantage.com>)
List pgsql-performance
On Tue, 2005-11-22 at 14:33, Anjan Dave wrote:
> Is there any way to get a temporary relief from this Context Switching
> storm? Does restarting postmaster help?
>
> It seems that I can recreate the heavy CS with just one SELECT
> statement...and then when multiple such SELECT queries are coming in,
> things just get hosed up until we cancel a bunch of queries...

Is your machine a hyperthreaded one?  Some folks have found that turning
off hyper threading helps.  I knew it made my servers better behaved in
the past.

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