X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 88AD89F9C10 for ; Thu, 4 May 2006 14:49:23 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 96572-05 for ; Thu, 4 May 2006 14:49:09 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from noel.decibel.org (noel.decibel.org [67.100.216.10]) by postgresql.org (Postfix) with ESMTP id 1B5B29FA65C for ; Thu, 4 May 2006 14:49:09 -0300 (ADT) Received: by noel.decibel.org (Postfix, from userid 1001) id 26BC15643A; Thu, 4 May 2006 12:49:08 -0500 (CDT) Received: (hashcash-sendmail, from uid 1001); Thu, 4 May 2006 12:49:07 -0500 Date: Thu, 4 May 2006 12:49:07 -0500 From: "Jim C. Nasby" To: Magnus Hagander Cc: Jan de Visser , pgsql-performance@postgresql.org Subject: Re: Performance Issues on Opteron Dual Core Message-ID: <20060504174907.GN97354@pervasive.com> References: <6BCB9D8A16AC4241919521715F4D8BCEA0F957@algol.sollentuna.se> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6BCB9D8A16AC4241919521715F4D8BCEA0F957@algol.sollentuna.se> X-Operating-System: FreeBSD 6.0-RELEASE-p4 amd64 X-Distributed: Join the Effort! http://www.distributed.net User-Agent: Mutt/1.5.11 X-Hashcash: 1:20:060504:mha@sollentuna.net::Vt29GScQAG/cAcnp:0000000000000000000 0000000000000000000000000tHf X-Hashcash: 1:20:060504:jdevisser@digitalfairway.com::BI7FBQlsMCsz3nNT:000000000 0000000000000000000000002Dj0 X-Hashcash: 1:20:060504:pgsql-performance@postgresql.org::GDYPsLqkPFlh/Z5m:00000 0000000000000000000000000c21 X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200605/100 X-Sequence-Number: 18887 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