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 C87EC11F61E8 for ; Wed, 26 Apr 2006 12:13:24 -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 32821-04 for ; Wed, 26 Apr 2006 12:13:01 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from peufeu.com (boutiquenumerique.com [82.67.9.10]) by postgresql.org (Postfix) with ESMTP id 2662711F60B5 for ; Wed, 26 Apr 2006 12:12:59 -0300 (ADT) Received: (qmail 17169 invoked from network); 26 Apr 2006 17:13:26 +0200 Received: from boutiquenumerique.com (HELO apollo13) (82.67.9.10) by boutiquenumerique.com with SMTP; 26 Apr 2006 17:13:26 +0200 Date: Wed, 26 Apr 2006 17:13:24 +0200 To: "David Boreham" , pgsql-performance@postgresql.org Subject: Re: Large (8M) cache vs. dual-core CPUs References: <20060425141435.6c8c163c.wmoran@collaborativefusion.com> <1145990018.23538.234.camel@state.g2switchworks.com> <20060425183817.GA9241@mark.mielke.cc> <1145990551.23538.244.camel@state.g2switchworks.com> <20060426005440.GA12711@mark.mielke.cc> <20060426011701.GB12711@mark.mielke.cc> <444F870D.2000307@boreham.org> From: PFC Content-Type: text/plain; format=flowed; delsp=yes; charset=utf-8 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-ID: In-Reply-To: <444F870D.2000307@boreham.org> User-Agent: Opera M2/8.51 (Linux, build 1462) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200604/605 X-Sequence-Number: 18689 Have a look at this Wikipedia page which outlines some differences between the AMD and Intel versions of 64-bit : http://en.wikipedia.org/wiki/EM64T > It isn't only Postgres. I work on a number of other server applications > that also run much faster on Opterons than the published benchmark > figures would suggest they should. They're all compiled with gcc4, > so possibly there's a compiler issue. I don't run Windows on any > of our Opteron boxes so I can't easily compare using the MS compiler.