X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id 99CD5D94BD for ; Fri, 7 Oct 2005 16:03:58 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 84312-01 for ; Fri, 7 Oct 2005 19:03:52 +0000 (GMT) Received: from mail.baymountain.com (mail.baymountain.com [8.7.96.19]) by svr1.postgresql.org (Postfix) with SMTP id 11DC3D83C7 for ; Fri, 7 Oct 2005 16:03:52 -0300 (ADT) Received: (qmail 27613 invoked by uid 504); 7 Oct 2005 19:03:52 -0000 Received: from emil@baymountain.com by mail.baymountain.com by uid 501 with qmail-scanner-1.16 (spamassassin: 2.53. Clear:SA:0(0.0/7.0):. Processed in 0.888931 secs); 07 Oct 2005 19:03:52 -0000 Received: from unknown (HELO briggspack.com) (emil@briggspack.com@24.211.148.77) by mail.baymountain.com with SMTP; 7 Oct 2005 19:03:51 -0000 From: Emil Briggs Reply-To: emil@baymountain.com To: pgsql-performance@postgresql.org Subject: Re: Status of Opteron vs Xeon Date: Fri, 7 Oct 2005 15:03:47 -0400 User-Agent: KMail/1.7.1 Cc: Chris Browne References: <60r7axjkpj.fsf@dba2.int.libertyrms.com> In-Reply-To: <60r7axjkpj.fsf@dba2.int.libertyrms.com> Organization: Baymountain, Inc. MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200510071503.47373.emil@baymountain.com> X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.038 required=5 tests=[AWL=-0.012, FORGED_RCVD_HELO=0.05] X-Spam-Level: X-Archive-Number: 200510/148 X-Sequence-Number: 14916 > > Furthermore, it does not do anything to address the consideration that > memory access on Opterons seem to be intrinsically faster than on Xeon > due to differences in the memory bus architecture. > I have been running some tests using different numa policies on a quad Opteron server and have found some significant performance differences depending on the type of load the system is under. It's not clear to me yet if I can draw any general conclusions from the results though. Emil