Received: from localhost (maia-2.hub.org [200.46.204.187]) by postgresql.org (Postfix) with ESMTP id 926A19FB8B0 for ; Mon, 5 Mar 2007 07:44:43 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.187]) (amavisd-new, port 10024) with ESMTP id 99057-08 for ; Mon, 5 Mar 2007 07:44:36 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from cronos.madness.at (madness.at [217.196.146.217]) by postgresql.org (Postfix) with ESMTP id D79989FB8AD for ; Mon, 5 Mar 2007 07:44:40 -0400 (AST) Received: from congw.dc1.conova.com ([217.196.145.250] helo=[192.168.1.61]) by cronos.madness.at with esmtpsa (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.63) (envelope-from ) id 1HOBfj-00009Q-Rq; Mon, 05 Mar 2007 12:48:10 +0100 Message-ID: <45EC02B4.2070409@kaltenbrunner.cc> Date: Mon, 05 Mar 2007 12:44:52 +0100 From: Stefan Kaltenbrunner User-Agent: Icedove 1.5.0.9 (X11/20061220) MIME-Version: 1.0 To: Arjen van der Meijden CC: pgsql-performance@postgresql.org Subject: Re: [kris@obsecurity.org: Progress on scaling of FreeBSD on 8 CPU systems] References: <20070227182621.GE29041@decibel.org> <20070302150129.GF4885@alvh.no-ip.org> <45E84790.6050609@tweakers.net> <45EBF658.30907@tweakers.net> In-Reply-To: <45EBF658.30907@tweakers.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.177 tagged_above=0 required=5 tests=AWL, BAYES_50, FORGED_RCVD_HELO X-Spam-Level: X-Archive-Number: 200703/81 X-Sequence-Number: 23486 Arjen van der Meijden wrote: > And here is that latest benchmark we did, using a 8 dual core opteron > Sun Fire x4600. Unfortunately PostgreSQL seems to have some difficulties > scaling over 8 cores, but not as bad as MySQL. > > http://tweakers.net/reviews/674 ouch - do I read that right that even after tom's fixes for the "regressions" in 8.2.0 we are still 30% slower then the -HEAD checkout from the middle of the 8.2 development cycle ? Stefan