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 84F4752836 for ; Fri, 5 Aug 2005 09:56:24 -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 01448-07 for ; Fri, 5 Aug 2005 12:56:20 +0000 (GMT) Received: from mail2.aeccom.com (port-212-202-101-158.static.qsc.de [212.202.101.158]) by svr1.postgresql.org (Postfix) with ESMTP id 98A1C5293F for ; Fri, 5 Aug 2005 09:56:19 -0300 (ADT) Received: from [192.168.2.12] (port-83-236-156-26.static.qsc.de [83.236.156.26]) by mail2.aeccom.com (Postfix) with ESMTP id BC565108; Fri, 5 Aug 2005 14:56:23 +0200 (CEST) Message-ID: <42F361F7.8070201@aeccom.com> Date: Fri, 05 Aug 2005 14:56:23 +0200 From: =?ISO-8859-1?Q?Dirk_Lutzeb=E4ck?= Organization: AEC/communications GmbH User-Agent: Mozilla Thunderbird 1.0.6 (X11/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Michael Stone Cc: pgsql-performance@postgresql.org, Sven Geisler Subject: Re: Performance problems on 4-way AMD Opteron 875 (dual References: <42F34963.5080403@aeccom.com> <20050805122719.GW19080@mathom.us> In-Reply-To: <20050805122719.GW19080@mathom.us> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.077 tagged_above=0 required=5 tests=AWL, FORGED_RCVD_HELO X-Spam-Level: X-Archive-Number: 200508/48 X-Sequence-Number: 13795 Michael Stone wrote: > 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 We tried it. 64bit 8.1dev was slower than 32bit 8.0.3. Dirk