Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 9A8BE2E0092 for ; Mon, 17 Mar 2008 15:44:23 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 21542-01 for ; Mon, 17 Mar 2008 15:43:59 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from mail.emolecules.com (66-226-76-106.dedicated.abac.net [66.226.76.106]) by postgresql.org (Postfix) with ESMTP id 549882E0D10 for ; Mon, 17 Mar 2008 15:33:36 -0300 (ADT) Received: (qmail 6797 invoked by uid 2020); 17 Mar 2008 10:33:34 -0800 Received: from wsip-68-224-174-233.sd.sd.cox.net (HELO lisa-james-computer.local) (68.224.174.233) by 192.168.0.4 with SMTP; 17 Mar 2008 10:33:34 -0800 Message-ID: <47DEB978.2030307@emolecules.com> Date: Mon, 17 Mar 2008 11:33:28 -0700 From: Craig James User-Agent: Thunderbird 2.0.0.12 (Macintosh/20080213) MIME-Version: 1.0 To: Justin CC: Greg Smith , pgsql-performance@postgresql.org Subject: Re: Benchmark: Dell/Perc 6, 8 disk RAID 10 References: <47D00DB2.7040007@emolecules.com> <18451.1204824562@sss.pgh.pa.us> <47D0AFC1.5070305@emolecules.com> <08115901408538@mail.emproshunts.com> <47D93A43.6020503@emolecules.com> <016301c8854e$851e06e0$3101a8c0@JDell> <47DA1866.3050500@krogh.cc> <47DA37E1.6050104@emproshunts.com> <47DA5852.30004@emproshunts.com> <47DCBBF9.1090401@emproshunts.com> <47DD6F4C.2050208@emolecules.com> <47DEBD7C.2060204@emproshunts.com> <47DEC2AD.8080602@emproshunts.com> In-Reply-To: <47DEC2AD.8080602@emproshunts.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200803/353 X-Sequence-Number: 29307 Justin wrote: >> 2000 tps ??? do you have fsync turned off ? >> >> Dave >> > > No its turned on. Unless I'm seriously confused, something is wrong with these numbers. That's the sort of performance you expect from a good-sized RAID 10 six-disk array. With a single 7200 rpm SATA disk and XFS, I get 640 tps. There's no way you could 2000 tps from a single disk. Craig