From: Jim C. Nasby <jnasby@pervasive.com>
To: Magnus Hagander <mha@sollentuna.net>
Cc: Jan de Visser <jdevisser@digitalfairway.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Performance Issues on Opteron Dual Core
Date: Thu, 4 May 2006 12:49:07 -0500
Message-ID: <20060504174907.GN97354@pervasive.com> (raw)
In-Reply-To: <6BCB9D8A16AC4241919521715F4D8BCEA0F957@algol.sollentuna.se>
References: <6BCB9D8A16AC4241919521715F4D8BCEA0F957@algol.sollentuna.se>
On Wed, May 03, 2006 at 09:29:15AM +0200, Magnus Hagander wrote:
> > > > 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?
I'd be happy to test this if someone could provide a build, or if
there's instructions somewhere for doing such a build...
--
Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
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To: pgsql-performance@postgresql.org
Cc: jnasby@pervasive.com, mha@sollentuna.net, jdevisser@digitalfairway.com
Subject: Re: Performance Issues on Opteron Dual Core
In-Reply-To: <20060504174907.GN97354@pervasive.com>
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