Received: from localhost (unknown [200.46.204.182]) by postgresql.org (Postfix) with ESMTP id 2069C9FA070 for ; Mon, 1 Oct 2007 20:25:27 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.182]) (amavisd-maia, port 10024) with ESMTP id 15345-03 for ; Mon, 1 Oct 2007 20:25:17 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by postgresql.org (Postfix) with ESMTP id D49439FA234 for ; Mon, 1 Oct 2007 20:25:21 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.1/8.14.1) with ESMTP id l91NPGxM024185; Mon, 1 Oct 2007 19:25:16 -0400 (EDT) To: Simon Riggs cc: Josh Berkus , pgsql-hackers@postgresql.org, Mija Lee Subject: Re: PG on NFS may be just a bad idea In-reply-to: <1191264888.4260.69.camel@ebony.site> References: <25517.1191038302@sss.pgh.pa.us> <47012AC5.9040808@agliodbs.com> <1191263814.4260.57.camel@ebony.site> <1191264888.4260.69.camel@ebony.site> Comments: In-reply-to Simon Riggs message dated "Mon, 01 Oct 2007 19:54:48 +0100" Date: Mon, 01 Oct 2007 19:25:16 -0400 Message-ID: <24184.1191281116@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200710/40 X-Sequence-Number: 108408 Simon Riggs writes: > http://blogs.netapp.com/dave/2007/08/oracle-optimize.html Not a whole lot of technical content there, but pretty interesting nonetheless. I *think* that the issues we're seeing are largely in the NFS client-side kernel code, so bypassing that stack as Oracle is doing might eliminate the problem. Of course, there's a sizable amount of code to be written to do that ... regards, tom lane