Received: from maia.hub.org (maia-3.hub.org [200.46.204.243]) by mail.postgresql.org (Postfix) with ESMTP id 9BD5DB5DBE0 for ; Mon, 3 Oct 2011 02:24:14 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.243]) (amavisd-maia, port 10024) with ESMTP id 00765-01 for ; Mon, 3 Oct 2011 05:24:08 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0-rc2 Received: from mail.nuevasync.com (server13-scl.nuevasync.com [64.13.157.153]) by mail.postgresql.org (Postfix) with ESMTP id 50A1DB5DBE1 for ; Mon, 3 Oct 2011 02:24:08 -0300 (ADT) Received: from [69.145.82.243] (unknown [69.145.82.243]) by mail.nuevasync.com (Postfix) with ESMTP id A19672B195F for ; Sun, 2 Oct 2011 23:24:07 -0600 (MDT) Message-ID: <4E8946F4.3080505@boreham.org> Date: Sun, 02 Oct 2011 23:24:04 -0600 From: David Boreham User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20110902 Thunderbird/6.0.2 MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: Re: Suggestions for Intel 710 SSD test References: <4E87CEDF.3000504@boreham.org> <4E893B9F.1070300@2ndQuadrant.com> <4E893EE7.9080509@boreham.org> In-Reply-To: <4E893EE7.9080509@boreham.org> 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=-1.9 tagged_above=-10 required=5 tests=BAYES_00=-1.9 X-Spam-Level: X-Archive-Number: 201110/13 X-Sequence-Number: 45235 On 10/2/2011 10:49 PM, David Boreham wrote: > > There are some OS differences between the old and new servers : old is > running CentOS 5.7 while the new is running 6.0. > Old server has atime enabled while new has relatime mount option > specified. Both are running PG 9.1.1 from the yum repo. > > Also the old server is using ext3 while the new has ext4 (with discard/trim enabled).