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 20DE552BB7 for ; Fri, 5 Aug 2005 09:27:24 -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 96596-04 for ; Fri, 5 Aug 2005 12:27:18 +0000 (GMT) Received: from vms042pub.verizon.net (vms042pub.verizon.net [206.46.252.42]) by svr1.postgresql.org (Postfix) with ESMTP id 58BFE52BC6 for ; Fri, 5 Aug 2005 09:27:17 -0300 (ADT) Received: from osgiliath.mathom.us ([70.108.53.154]) by vms042.mailsrvcs.net (Sun Java System Messaging Server 6.2 HotFix 0.04 (built Dec 24 2004)) with ESMTPA id <0IKR00GYS19KGZG0@vms042.mailsrvcs.net> for pgsql-performance@postgresql.org; Fri, 05 Aug 2005 07:27:21 -0500 (CDT) Received: from localhost (localhost [127.0.0.1]) by osgiliath.mathom.us (Postfix) with ESMTP id 11A8C600498; Fri, 05 Aug 2005 08:27:20 -0400 (EDT) Received: from osgiliath.mathom.us ([127.0.0.1]) by localhost (osgiliath [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 18342-02-6; Fri, 05 Aug 2005 08:27:19 -0400 (EDT) Received: by osgiliath.mathom.us (Postfix, from userid 1000) id D291C60048A; Fri, 05 Aug 2005 08:27:19 -0400 (EDT) Date: Fri, 05 Aug 2005 08:27:19 -0400 From: Michael Stone Subject: Re: Performance problems on 4-way AMD Opteron 875 (dual core) In-reply-to: <42F34963.5080403@aeccom.com> To: Dirk =?iso-8859-1?Q?Lutzeb=E4ck?= Cc: pgsql-performance@postgresql.org, Sven Geisler Mail-Followup-To: Dirk =?iso-8859-1?Q?Lutzeb=E4ck?= , pgsql-performance@postgresql.org, Sven Geisler Message-id: <20050805122719.GW19080@mathom.us> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1; format=flowed Content-transfer-encoding: 8BIT Content-disposition: inline X-Pgp-Fingerprint: 53 FF 38 00 E7 DD 0A 9C 84 52 84 C5 EE DF 7C 88 X-Virus-Scanned: by amavisd-new-20030616-p10 (Debian) at mathom.us References: <42F34963.5080403@aeccom.com> User-Agent: Mutt/1.5.9i X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.007 tagged_above=0 required=5 tests=AWL X-Spam-Level: X-Archive-Number: 200508/47 X-Sequence-Number: 13794 On Fri, Aug 05, 2005 at 01:11:31PM +0200, Dirk Lutzebäck wrote: >I will compile the latest PostgreSQL 8.1 snapshot for 32bit to evaluate >the new shared buffer code from Tom. >I think, the 64bit is slow because my queries are CPU intensive. Have you actually tried it or are you guessing? If you're guessing, then compile it as a 64 bit binary and benchmark that. Mike Stone