Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 6FDE664FFE0 for ; Wed, 13 Aug 2008 01:33:26 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 71134-10 for ; Wed, 13 Aug 2008 01:33:10 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from smtp110.biz.mail.mud.yahoo.com (smtp110.biz.mail.mud.yahoo.com [68.142.201.179]) by postgresql.org (Postfix) with SMTP id D26DB64FCEE for ; Wed, 13 Aug 2008 01:28:36 -0300 (ADT) Received: (qmail 49350 invoked from network); 13 Aug 2008 04:28:32 -0000 Received: from unknown (HELO ?192.168.5.105?) (ramayer@forensiclogic.com@75.37.20.87 with plain) by smtp110.biz.mail.mud.yahoo.com with SMTP; 13 Aug 2008 04:28:31 -0000 X-YMail-OSG: oyAl01oVM1lfcfJmqw9qisJTL3MARQxFj0sRSrlq01SQ0yR.D3bnlDrvlXDwVXHcMP7pun7pv3xShohzpHyFUwlbZOrYO0KIgrpEjw0fTPUBFMA5lFam9oRoKVs83eLxxx0- X-Yahoo-Newman-Property: ymail-3 Message-ID: <48A262F0.9080203@cheapcomplexdevices.com> Date: Tue, 12 Aug 2008 21:28:32 -0700 From: Ron Mayer User-Agent: Mozilla-Thunderbird 2.0.0.16 (X11/20080724) MIME-Version: 1.0 To: Scott Marlowe CC: Scott Carey , Ron Mayer , Greg Smith , Henrik , pgsql-performance@postgresql.org Subject: Re: Filesystem benchmarking for pg 8.3.3 server References: <32A7A76B-16CA-4CDB-AD43-973AD6A3FC7B@mac.se> <48A2050D.4050803@cheapcomplexdevices.com> 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=0 tagged_above=0 required=5 tests=none X-Spam-Level: X-Archive-Number: 200808/144 X-Sequence-Number: 31025 Scott Marlowe wrote: > I can attest to the 2.4 kernel not being able to guarantee fsync on > IDE drives. Sure. But note that it won't for SCSI either; since AFAICT the write barrier support was implemented at the same time for both.