| From: | David Hodgkinson <daveh(at)hodgkinson(dot)org> |
|---|---|
| To: | "Sailer, Denis (YBUSA-CDR)" <Denis(dot)Sailer(at)Yellowbook(dot)com> |
| Cc: | <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: context-switching issue on Xeon |
| Date: | 2005-07-19 18:38:14 |
| Message-ID: | C5DDEFFC-7E31-4AF4-A677-56636427649B@hodgkinson.org |
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| Lists: | pgsql-performance |
FWIW, I'm seeing this with a client at the moment. 40-60k CS per second
on Dual 3.2GHz.
There are plenty of other issues we're dealing with, but this is
obviously
disconcerting...
On 19 Jul 2005, at 19:23, Sailer, Denis (YBUSA-CDR) wrote:
> The thread below has the test case that we were able to use to
> reproduce the issue.
>
>
> http://archives.postgresql.org/pgsql-performance/2004-04/msg00280.php
>
>
> The last messages on this subject are from April of 2005. Has
> there been any successful ways to significantly reduce the impact
> this has to multi-processing? I haven’t been able to find anything
> showing a resolution of some kind.
>
>
> We are seeing this on two of our machines:
>
>
> Quad 3.0 GHz XEON with 3GB of memory running PG 7.4.3 with SuSE
> kernel 2.4
>
>
> Dual 2.8 GHz XEON with 2GB of memory running PG 8.0.0 with SuSE
> kernel 2.4
>
>
>
>
>
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