| From: | "Magnus Hagander" <mha(at)sollentuna(dot)net> |
|---|---|
| To: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>, "Jan de Visser" <jdevisser(at)digitalfairway(dot)com> |
| Cc: | <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: Performance Issues on Opteron Dual Core |
| Date: | 2006-05-03 07:29:15 |
| Message-ID: | 6BCB9D8A16AC4241919521715F4D8BCEA0F957@algol.sollentuna.se |
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| Thread: | |
| Lists: | pgsql-performance |
> > > FWIW, I've found problems running PostgreSQL on Windows in a
> > > multi-CPU environment on w2k3. It runs fine for some period, and
> > > then CPU and throughput drop to zero. So far I've been unable to
> > > track down any more information than that, other than the
> fact that
> > > I haven't been able to reproduce this on any single-CPU machines.
> >
> > I have had previous correspondence about this with Magnus (search
> > -general and -hackers). If you uninstall SP1 the problem
> goes away. We
> > played a bit with potential fixes but didn't find any.
>
> Interesting; does SP2 fix the problem? Anything we can do
> over here to help?
There is no SP2 for Windows 2003.
Have you tried this with latest-and-greatest CVS HEAD? Meaning with the
new semaphore code that was committed a couple of days ago?
//Magnus
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