Received: from localhost (unknown [200.46.208.211]) by mail.postgresql.org (Postfix) with ESMTP id BF8636338E5 for ; Mon, 11 Jan 2010 16:17:01 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.208.211]) (amavisd-maia, port 10024) with ESMTP id 92201-01 for ; Mon, 11 Jan 2010 20:16:47 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail-ew0-f216.google.com (mail-ew0-f216.google.com [209.85.219.216]) by mail.postgresql.org (Postfix) with ESMTP id 583606336BE for ; Mon, 11 Jan 2010 16:16:50 -0400 (AST) Received: by ewy8 with SMTP id 8so22726639ewy.35 for ; Mon, 11 Jan 2010 12:16:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=Vbp9vN84WZPUTUNxXmJ7r15UZHe1s9GexmuTVE4Y7gQ=; b=NsDPR7poFwTZTUluLXtSU4XwXwlpT2OTwqNrISz+dHEh4P1Ie37Sl859DU322vK8Jz /soBXRKIxUNW3OhLelBFH6PMUNZzqqmi6aXCLMLE+0hZ8At7jEnnIP5sopsXX/eWMJM6 MqhJ5jAUk7+DsABg/qwrC+61TSvd/p/rdNi8Q= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=d5vcFZwECugI/wa1rJ3sFFmly7XPJ3GOFo8UFKMmjSZQi0t56aXkXu08dYLUGQiZH+ A31NcEMgZOjPFPmNT6+ih2M3Le+pcWFLxTSx3O5G8eQNqjDg78VMlXJdr8CDykcLXyp5 xGrL0xmw71ohK+OfU8ju1bKr7JV7UA39U2zfw= MIME-Version: 1.0 Received: by 10.216.86.9 with SMTP id v9mr2262623wee.148.1263241005581; Mon, 11 Jan 2010 12:16:45 -0800 (PST) In-Reply-To: <6EB5F166D3FA6B499A1A25856BDB9B6085F4A309@susday216.corp.ncr.com> References: <6EB5F166D3FA6B499A1A25856BDB9B6085F4A309@susday216.corp.ncr.com> Date: Mon, 11 Jan 2010 13:16:45 -0700 Message-ID: Subject: Re: performance config help From: Scott Marlowe To: "Dusek, Bob" Cc: Bob Dusek , Kevin Grittner , "pgsql-performance@postgresql.org" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.277 tagged_above=-10 required=5 tests=AWL=-1.092, BAYES_40=-0.185 X-Spam-Level: X-Archive-Number: 201001/215 X-Sequence-Number: 37095 On Mon, Jan 11, 2010 at 1:13 PM, Dusek, Bob wrote: > I haven't been involved in any benchmarking of PG8 with fsync=3Doff, but = we certainly did it with PG 7.4. =A0fsync=3D0ff, for our purposes, was MUCH= faster. And many changes have been made since then to make fsyncing much faster. You may be grinding the valves on a 2009 Ferrari because pappy used to have to do it on his 1958 pickup truck here.