Received: from maia.hub.org (maia-3.hub.org [200.46.204.243]) by mail.postgresql.org (Postfix) with ESMTP id 173DA632957 for ; Thu, 2 Sep 2010 16:17:51 -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 62169-01 for ; Thu, 2 Sep 2010 19:17:43 +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 F18CC6310AC for ; Thu, 2 Sep 2010 16:17:43 -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 o82JHg2o006596; Thu, 2 Sep 2010 15:17:42 -0400 (EDT) To: A J cc: Kevin Grittner , Scott Marlowe , pgsql-admin@postgresql.org Subject: Re: Confused by 'timing' results In-reply-to: <458444.29196.qm@web120007.mail.ne1.yahoo.com> References: <788866.21140.qm@web120020.mail.ne1.yahoo.com> <4C7D00330200002500034ED2@gw.wicourts.gov> <19320.56933.qm@web120013.mail.ne1.yahoo.com> <529329.89885.qm@web120007.mail.ne1.yahoo.com> <4C7F8F2A0200002500035037@gw.wicourts.gov> <294404.58402.qm@web120007.mail.ne1.yahoo.com> <4C7FA72C0200002500035095@gw.wicourts.gov> <458444.29196.qm@web120007.mail.ne1.yahoo.com> Comments: In-reply-to A J message dated "Thu, 02 Sep 2010 12:02:34 -0700" Date: Thu, 02 Sep 2010 15:17:42 -0400 Message-ID: <6595.1283455062@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: 201009/29 X-Sequence-Number: 35573 A J writes: > Do you think changing log_destination to syslog may make a difference It's worth trying alternatives anyway. It is odd that you are seeing such a slowdown when using the collector --- many people push very high log volumes through the collector without problems. What PG version is this exactly, and on what platform? regards, tom lane