X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id DE4EB52825 for ; Thu, 23 Jun 2005 14:15:40 -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 88472-03 for ; Thu, 23 Jun 2005 17:15:34 +0000 (GMT) Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by svr1.postgresql.org (Postfix) with ESMTP id 34F0552812 for ; Thu, 23 Jun 2005 14:15:33 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.13.1/8.13.1) with ESMTP id j5NHFOUP006452; Thu, 23 Jun 2005 13:15:24 -0400 (EDT) To: Dave Cramer Cc: radu.popescu@aldratech.com, pgsql-performance@postgresql.org Subject: Re: Performance Tuning Article In-reply-to: References: <20050622095227.05938982.frank@wiles.org> <200506221016.03808.josh@agliodbs.com> <20050622124232.71b05e3f.frank@wiles.org> <42BA1F01.1010700@NarrowPathInc.com> <42BA7F49.6080101@aldratech.com> <42BAA816.2040806@NarrowPathInc.com> <533D107C-FDF0-4A6A-A88F-0751DCDDEA4D@fastcrypt.com> <42BABD37.9030207@aldratech.com> Comments: In-reply-to Dave Cramer message dated "Thu, 23 Jun 2005 12:16:57 -0400" Date: Thu, 23 Jun 2005 13:15:24 -0400 Message-ID: <6451.1119546924@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.006 tagged_above=0 required=5 tests=AWL X-Spam-Level: X-Archive-Number: 200506/461 X-Sequence-Number: 13098 Dave Cramer writes: > AFAIK, the problem was the buffer manager The buffer manager was the place that seemed to be hit hardest by Xeon's problems with spinlock contention. I think we've partially fixed that issue in 8.1, but as we continue to improve the system's performance, it's likely to surface as a bottleneck again in other places. regards, tom lane