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 24BD19DCAD3 for ; Mon, 6 Mar 2006 16:17:26 -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 97211-05 for ; Mon, 6 Mar 2006 16:17:24 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from tigger.fuhr.org (tigger.fuhr.org [63.214.45.158]) by postgresql.org (Postfix) with ESMTP id B50889DCA67 for ; Mon, 6 Mar 2006 16:17:21 -0400 (AST) Received: from winnie.fuhr.org (winnie.fuhr.org [10.1.0.1]) by tigger.fuhr.org (8.13.3/8.13.3) with ESMTP id k26KHHuQ085324 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 6 Mar 2006 13:17:19 -0700 (MST) (envelope-from mfuhr@winnie.fuhr.org) Received: from winnie.fuhr.org (localhost [127.0.0.1]) by winnie.fuhr.org (8.13.4/8.13.4) with ESMTP id k26KHHOT014731; Mon, 6 Mar 2006 13:17:17 -0700 (MST) (envelope-from mfuhr@winnie.fuhr.org) Received: (from mfuhr@localhost) by winnie.fuhr.org (8.13.4/8.13.4/Submit) id k26KHGqA014730; Mon, 6 Mar 2006 13:17:16 -0700 (MST) (envelope-from mfuhr) Date: Mon, 6 Mar 2006 13:17:16 -0700 From: Michael Fuhr To: Joost Kraaijeveld Cc: "Pgsql-Performance (E-mail)" Subject: Re: Can anyone explain this pgbench results? Message-ID: <20060306201716.GA14663@winnie.fuhr.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0.122 required=5 tests=[AWL=0.122] X-Spam-Score: 0.122 X-Spam-Level: X-Archive-Number: 200603/44 X-Sequence-Number: 17481 On Mon, Mar 06, 2006 at 07:46:05PM +0100, Joost Kraaijeveld wrote: > Michael Fuhr wrote: > > What's your setting? > > Default. Have you tweaked postgresql.conf at all? If so, what non-default settings are you using? > > Are your test results more consistent > > if you execute CHECKPOINT between them? > > Could you tell me how I could do that? Connect to the database as a superuser and execute a CHECKPOINT statement. http://www.postgresql.org/docs/8.1/interactive/sql-checkpoint.html