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 14419DB892 for ; Wed, 16 Nov 2005 10:29:51 -0400 (AST) 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 14867-09 for ; Wed, 16 Nov 2005 14:29:53 +0000 (GMT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from noao.edu (noao.edu [140.252.1.54]) by svr1.postgresql.org (Postfix) with ESMTP id C64B5DB851 for ; Wed, 16 Nov 2005 10:29:47 -0400 (AST) X-TFF-CGPSA-Version: 1.4f1 X-TFF-CGPSA-Filter: Scanned Received: from weaver.tuc.noao.edu ([140.252.14.8] verified) by noao.edu (CommuniGate Pro SMTP 5.0.1) with ESMTPS id 21669031; Wed, 16 Nov 2005 07:29:46 -0700 Received: from [127.0.0.1] (localhost.localdomain [127.0.0.1]) by weaver.tuc.noao.edu (8.13.1/8.13.1) with ESMTP id jAGETi6O028973; Wed, 16 Nov 2005 07:29:45 -0700 Message-ID: <437B4258.8050507@noao.edu> Date: Wed, 16 Nov 2005 07:29:44 -0700 From: Steve Wampler User-Agent: Mozilla Thunderbird 1.0.7 (X11/20050923) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Joshua D. Drake" CC: Alex Turner , Luke Lonergan , Adam Weisberg , pgsql-performance@postgresql.org Subject: Re: Hardware/OS recommendations for large databases ( References: <3E37B936B592014B978C4415F90D662D01995F7B@MI8NYCMAIL06.Mi8.com> <33c6269f0511152115v1a34ab81j30f1f5df5a6c6956@mail.gmail.com> <437B3B18.1040509@commandprompt.com> In-Reply-To: <437B3B18.1040509@commandprompt.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0 required=5 tests=[none] X-Spam-Score: 0 X-Spam-Level: X-Archive-Number: 200511/274 X-Sequence-Number: 15531 Joshua D. Drake wrote: > The reason you want the dual core cpus is that PostgreSQL can only > execute 1 query per cpu at a time,... Is that true? I knew that PG only used one cpu per query, but how does PG know how many CPUs there are to limit the number of queries? -- Steve Wampler -- swampler@noao.edu The gods that smiled on your birth are now laughing out loud.