X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 798939DCD29 for ; Mon, 5 Dec 2005 20:07:50 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 83571-02 for ; Mon, 5 Dec 2005 20:07:53 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from mx2.surnet.cl (mx2.surnet.cl [216.155.73.181]) by postgresql.org (Postfix) with ESMTP id 33CF99DCD1F for ; Mon, 5 Dec 2005 20:07:47 -0400 (AST) Received: from unknown (HELO cluster.surnet.cl) ([216.155.73.165]) by mx2.surnet.cl with ESMTP; 05 Dec 2005 21:06:39 -0300 X-IronPort-AV: i="3.99,218,1131332400"; d="scan'208"; a="5393286:sNHT19370664" Received: from alvh.no-ip.org (201.220.123.252) by cluster.surnet.cl (7.0.043) (authenticated as alvherre@surnet.cl) id 438E66E8000880BE; Mon, 5 Dec 2005 21:07:51 -0300 Received: by alvh.no-ip.org (Postfix, from userid 1000) id EC496C2DC6C; Mon, 5 Dec 2005 21:07:52 -0300 (CLST) Date: Mon, 5 Dec 2005 21:07:52 -0300 From: Alvaro Herrera To: Olleg Cc: Tom Lane , pgsql-performance@postgresql.org Subject: Re: BLCKSZ Message-ID: <20051206000752.GC20272@surnet.cl> Mail-Followup-To: Olleg , Tom Lane , pgsql-performance@postgresql.org References: <29518.1133794958@sss.pgh.pa.us> <4394B1D3.7000304@mail.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4394B1D3.7000304@mail.ru> User-Agent: Mutt/1.5.11 X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=1.482 required=5 tests=[AWL=-0.437, DNS_FROM_RFC_ABUSE=0.479, DNS_FROM_RFC_POST=1.44] X-Spam-Score: 1.482 X-Spam-Level: * X-Archive-Number: 200512/138 X-Sequence-Number: 15959 Olleg wrote: > I test performace on database test server. This is copy of working > billing system to test new features and experiments. Test task was one > day traffic log. Average time of a one test was 260 minutes. Postgresql > 7.4.8. Server dual Opteron 240, 4Gb RAM. Did you execute queries from the log, one after another? That may not be a representative test -- try sending multiple queries in parallel, to see how the server would perform in the real world. -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc.