Received: from maia.hub.org (maia-3.hub.org [200.46.204.243]) by mail.postgresql.org (Postfix) with ESMTP id CCA1C63287B for ; Fri, 4 Jun 2010 10:59:17 -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 65953-05 for ; Fri, 4 Jun 2010 13:59:09 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by mail.postgresql.org (Postfix) with ESMTP id A3E7863234F for ; Fri, 4 Jun 2010 10:59:10 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.2/8.14.2) with ESMTP id o54Dx67Y002136; Fri, 4 Jun 2010 09:59:06 -0400 (EDT) To: Marc Cousin cc: pgsql-performance@postgresql.org Subject: Re: performance regression with Linux 2.6.33 and glibc 2.12 In-reply-to: <201006041539.03868.cousinmarc@gmail.com> References: <201006041539.03868.cousinmarc@gmail.com> Comments: In-reply-to Marc Cousin message dated "Fri, 04 Jun 2010 15:39:03 +0200" Date: Fri, 04 Jun 2010 09:59:05 -0400 Message-ID: <2135.1275659945@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.91 tagged_above=-10 required=5 tests=BAYES_00=-1.9, T_RP_MATCHES_RCVD=-0.01 X-Spam-Level: X-Archive-Number: 201006/81 X-Sequence-Number: 38937 Marc Cousin writes: > I hope I'm not going to expose an already known problem, but I couldn't find > it mailing list archives (I only found http://archives.postgresql.org/pgsql- > hackers/2009-12/msg01543.php). You sure this isn't the well-known "ext4 actually implements fsync where ext3 didn't" issue? regards, tom lane