Received: from maia.hub.org (unknown [200.46.204.183]) by mail.postgresql.org (Postfix) with ESMTP id 07C21632B5E for ; Mon, 22 Feb 2010 08:44:02 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 41386-01 for ; Mon, 22 Feb 2010 12:43:51 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from spinlock.commandprompt.com (host-215.commandprompt.net [207.173.203.215]) by mail.postgresql.org (Postfix) with ESMTP id 5FDEB6329C6 for ; Mon, 22 Feb 2010 08:43:51 -0400 (AST) Received: from localhost (localhost [127.0.0.1]) by spinlock.commandprompt.com (Postfix) with ESMTP id 0417B3C52C4; Mon, 22 Feb 2010 04:43:49 -0800 (PST) Received: from spinlock.commandprompt.com ([127.0.0.1]) by localhost (spinlock.commandprompt.com.commandprompt.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Q8TBIreH4-93; Mon, 22 Feb 2010 04:43:48 -0800 (PST) Received: from perhan.alvh.no-ip.org (200-85-218-3.bk4-dsl.surnet.cl [200.85.218.3]) by spinlock.commandprompt.com (Postfix) with ESMTPSA id 854533C517F; Mon, 22 Feb 2010 04:43:48 -0800 (PST) Received: by perhan.alvh.no-ip.org (Postfix, from userid 1000) id 314F36E4C3; Mon, 22 Feb 2010 09:43:45 -0300 (CLST) Date: Mon, 22 Feb 2010 09:43:45 -0300 From: Alvaro Herrera To: George Sexton Cc: 'Tom Lane' , pgsql-performance@postgresql.org Subject: Re: AutoVacuum_NapTime Message-ID: <20100222124344.GA4629@alvh.no-ip.org> References: <053401cab291$a8cf7250$fa6e56f0$@com> <25691.1266714920@sss.pgh.pa.us> <053801cab295$5df355e0$19da01a0$@com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <053801cab295$5df355e0$19da01a0$@com> User-Agent: Mutt/1.5.20 (2009-06-14) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-2.599 tagged_above=-10 required=5 tests=BAYES_00=-2.599 X-Spam-Level: X-Archive-Number: 201002/294 X-Sequence-Number: 37715 George Sexton wrote: > If I'm cold starting the system, would it vacuum all 330 databases and then > wait 720 minutes and then do them all again, or would it distribute the > databases more or less evenly over the time period? the latter -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc.