Received: from maia.hub.org (unknown [200.46.208.211]) by mail.postgresql.org (Postfix) with ESMTP id 61EB663317D for ; Mon, 29 Mar 2010 01:23:58 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.208.211]) (amavisd-maia, port 10024) with ESMTP id 85366-02 for ; Mon, 29 Mar 2010 04:23:42 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.171]) by mail.postgresql.org (Postfix) with ESMTP id BE588633166 for ; Mon, 29 Mar 2010 01:22:22 -0300 (ADT) Received: from [192.168.0.105] (pool-96-244-14-10.bltmmd.fios.verizon.net [96.244.14.10]) by mrelayeu.kundenserver.de (node=mreu0) with ESMTP (Nemesis) id 0MgaZf-1OBJgh0sdD-00NTpN; Mon, 29 Mar 2010 06:22:21 +0200 Message-ID: <4BB02AFA.9050305@2ndquadrant.com> Date: Mon, 29 Mar 2010 00:22:18 -0400 From: Greg Smith User-Agent: Thunderbird 2.0.0.24 (X11/20100317) MIME-Version: 1.0 To: Reydan Cankur CC: pgsql-performance@postgresql.org Subject: Re: Pgbench TPS Calculation References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V01U2FsdGVkX1/QugpyKN6viFgHGeOvywrHws/YSQEgfIVj6Or vqT9NOAQoHhQ1idMNYsPwSgfslH+T1wHtzP0lWjWh1uL/UBn81 LCvIUGUeh6YIS1fGNK4Vj+lLGDnkyRS X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.08 tagged_above=-10 required=5 tests=AWL=-1.081, BAYES_50=0.001 X-Spam-Level: X-Archive-Number: 201003/362 X-Sequence-Number: 38187 Reydan Cankur wrote: > 1) For calculating time to get the TPS, is pgbench using the wall > clock time or cpu time? > 2) How is TPS calculated? Wall clock time. TPS=transactions processed / (end time - start time) -- Greg Smith 2ndQuadrant US Baltimore, MD PostgreSQL Training, Services and Support greg@2ndQuadrant.com www.2ndQuadrant.us