Received: from localhost (maia-1.hub.org [200.46.204.191]) by postgresql.org (Postfix) with ESMTP id A7F129FB531 for ; Thu, 7 Jun 2007 22:46:20 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.191]) (amavisd-maia, port 10024) with ESMTP id 13579-10 for ; Thu, 7 Jun 2007 22:46:16 -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 43D8B9FB4F7 for ; Thu, 7 Jun 2007 22:46:17 -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 l581kEW5011937; Thu, 7 Jun 2007 21:46:14 -0400 (EDT) To: Alvaro Herrera cc: Joe Lester , pgsql-performance@postgresql.org Subject: Re: Getting Slow In-reply-to: <20070607185854.GC21004@alvh.no-ip.org> References: <14D118F0-20F6-4096-93D7-E6CB2893E895@sweetwater.com> <20070607185854.GC21004@alvh.no-ip.org> Comments: In-reply-to Alvaro Herrera message dated "Thu, 07 Jun 2007 14:58:54 -0400" Date: Thu, 07 Jun 2007 21:46:13 -0400 Message-ID: <11936.1181267173@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200706/149 X-Sequence-Number: 25182 Alvaro Herrera writes: > Also if autovacuum is eating all your I/O you may want to look into > throttling it back a bit by setting autovacuum_vacuum_cost_delay to a > non-zero value. BTW, why is it that autovacuum_cost_delay isn't enabled by default? I can hardly believe that anyone will want to run it without that. *Especially* not with multiple workers configured by default. regards, tom lane