Received: from maia.hub.org (maia-3.hub.org [200.46.204.243]) by mail.postgresql.org (Postfix) with ESMTP id DB9296324D6 for ; Thu, 8 Jul 2010 14:10:29 -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 89529-08 for ; Thu, 8 Jul 2010 17:10:22 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mail-ww0-f42.google.com (mail-ww0-f42.google.com [74.125.82.42]) by mail.postgresql.org (Postfix) with ESMTP id 612A663245B for ; Thu, 8 Jul 2010 14:10:21 -0300 (ADT) Received: by wwb13 with SMTP id 13so82718wwb.1 for ; Thu, 08 Jul 2010 10:10:20 -0700 (PDT) Received: by 10.227.154.18 with SMTP id m18mr6945103wbw.127.1278609020433; Thu, 08 Jul 2010 10:10:20 -0700 (PDT) Received: from Craig-Jamess-MacBook-Pro.local (wsip-70-167-124-126.sd.sd.cox.net [70.167.124.126]) by mx.google.com with ESMTPS id p29sm52491274wbc.19.2010.07.08.10.10.18 (version=SSLv3 cipher=RC4-MD5); Thu, 08 Jul 2010 10:10:19 -0700 (PDT) Message-ID: <4C360677.1090608@emolecules.com> Date: Thu, 08 Jul 2010 10:10:15 -0700 From: Craig James User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.10) Gecko/20100512 Thunderbird/3.0.5 MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: Re: performance on new linux box References: <4C3532CC.6070601@squeakycode.net> <4C3591F40200002500033219@gw.wicourts.gov> <4C35A23B0200002500033220@gw.wicourts.gov> In-Reply-To: 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: 201007/110 X-Sequence-Number: 39499 On 7/8/10 9:31 AM, Ryan Wexler wrote: > Thanks a lot for all the comments. The fact that both my windows box > and the old linux box both show a massive performance improvement over > the new linux box seems to point to hardware to me. I am not sure how > to test the fsync issue, but i don't see how that could be it. > > The raid card the server has in it is: > 3Ware 4 Port 9650SE-4LPML RAID Card > > Looking it up, it seems to indicate that it has BBU Make sure the battery isn't dead. Most RAID controllers drop to non-BBU speeds if they detect that the battery is faulty. Craig