Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 12 Jul 2002 13:17:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 12 Jul 2002 13:17:40 -0400 Received: from virtmail.zianet.com ([216.234.192.37]:32450 "HELO zianet.com") by vger.kernel.org with SMTP id ; Fri, 12 Jul 2002 13:17:38 -0400 Message-ID: <3D2F1158.6060608@zianet.com> Date: Fri, 12 Jul 2002 11:26:48 -0600 From: kwijibo@zianet.com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1a+) Gecko/20020709 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Andreas Dilger CC: Dax Kelson , linux-kernel@vger.kernel.org Subject: Re: [ANNOUNCE] Ext3 vs Reiserfs benchmarks References: <1026490866.5316.41.camel@thud> <20020712170532.GI8738@clusterfs.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1874 Lines: 64 I compared reiserfs with notails and with tails to ext3 in journaled mode about a month ago. Strangely enough the machine that was being built is eventually slated for a mail machine. I used postmark to simulate the mail environment. Benchmarks are available here: http://labs.zianet.com Let me know if I am missing any info on there. Steven Andreas Dilger wrote: >On Jul 12, 2002 10:21 -0600, Dax Kelson wrote: > > >>ext3 data=ordered >>ext3 data=writeback >>reiserfs >>reiserfs notail >> >>http://www.gurulabs.com/ext3-reiserfs.html >> >>Any suggestions or comments appreciated. >> >> > >Did you try data=journal mode on ext3? For real-life workloads sync-IO >workloads like mail (e.g. not benchmarks where the system is 100% busy) >you can have considerable performance benefits from doing the sync IO >directly to the journal instead of partly to the journal and partly to >the rest of the filesystem. > >The reason why "real life" is important here is because the data=journal >mode writes all the files to disk twice - once to the journal and again >to the filesystem, so you must have some "slack" in your disk bandwidth >in order to benefit from this increased throughput on the part of the >mail transport. > >Cheers, Andreas >-- >Andreas Dilger >http://www-mddsp.enel.ucalgary.ca/People/adilger/ >http://sourceforge.net/projects/ext2resize/ > >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ > > > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/