Received: from localhost (maia-2.hub.org [200.46.204.187]) by postgresql.org (Postfix) with ESMTP id 4D1529FB351 for ; Fri, 23 Mar 2007 14:13:15 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.187]) (amavisd-new, port 10024) with ESMTP id 48892-09 for ; Fri, 23 Mar 2007 14:13:07 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from vms040pub.verizon.net (vms040pub.verizon.net [206.46.252.40]) by postgresql.org (Postfix) with ESMTP id 1837B9FB4F3 for ; Fri, 23 Mar 2007 14:13:08 -0300 (ADT) Received: from osgiliath.mathom.us ([72.66.31.15]) by vms040.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0JFD0074P95WDJ55@vms040.mailsrvcs.net> for pgsql-performance@postgresql.org; Fri, 23 Mar 2007 12:13:08 -0500 (CDT) Received: from localhost (localhost [127.0.0.1]) by osgiliath.mathom.us (Postfix) with ESMTP id 346076FB20 for ; Fri, 23 Mar 2007 13:13:04 -0400 (EDT) Received: from osgiliath.mathom.us ([127.0.0.1]) by localhost (osgiliath.home.mathom.us [127.0.0.1]) (amavisd-new, port 10024) with LMTP id PktAYlTGYmhP for ; Fri, 23 Mar 2007 13:13:03 -0400 (EDT) Received: by osgiliath.mathom.us (Postfix, from userid 1000) id 4344771394; Fri, 23 Mar 2007 13:13:03 -0400 (EDT) Date: Fri, 23 Mar 2007 13:13:02 -0400 From: Michael Stone Subject: Re: Parallel Vacuum In-reply-to: <200703231637.33211.dimitrik.fr@gmail.com> To: pgsql-performance@postgresql.org Mail-followup-to: pgsql-performance@postgresql.org Message-id: <20070323171300.GP11402@mathom.us> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii; format=flowed Content-disposition: inline X-Virus-Scanned: Debian amavisd-new at mathom.us X-Pgp-Fingerprint: 53 FF 38 00 E7 DD 0A 9C 84 52 84 C5 EE DF 7C 88 References: <200703221435.54408.dimitrik.fr@gmail.com> <200703221924.39278.dimitrik.fr@gmail.com> <20070322184613.GJ11402@mathom.us> <200703231637.33211.dimitrik.fr@gmail.com> User-Agent: Mutt/1.5.13 (2006-08-11) X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200703/371 X-Sequence-Number: 23776 On Fri, Mar 23, 2007 at 04:37:32PM +0100, Dimitri wrote: >Speed-up x4 is obtained just because single vacuum process reaching max >80MB/sec in throughput I'd look at trying to improve that, it seems very low. Mike Stone