From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Dilger Subject: Re: File System Performance results Date: Sat, 25 Oct 2008 03:15:04 -0600 Message-ID: <20081025091504.GZ3184@webber.adilger.int> References: <48FF87CE.2090502@austin.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7BIT Cc: linux-fsdevel@vger.kernel.org To: Steven Pratt Return-path: Received: from sca-es-mail-2.Sun.COM ([192.18.43.133]:57296 "EHLO sca-es-mail-2.sun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750881AbYJYJP2 (ORCPT ); Sat, 25 Oct 2008 05:15:28 -0400 Received: from fe-sfbay-09.sun.com ([192.18.43.129]) by sca-es-mail-2.sun.com (8.13.7+Sun/8.12.9) with ESMTP id m9P9FGV5019231 for ; Sat, 25 Oct 2008 02:15:26 -0700 (PDT) Received: from conversion-daemon.fe-sfbay-09.sun.com by fe-sfbay-09.sun.com (Sun Java System Messaging Server 6.2-8.04 (built Feb 28 2007)) id <0K9A00E01EVU5R00@fe-sfbay-09.sun.com> (original mail from adilger@sun.com) for linux-fsdevel@vger.kernel.org; Sat, 25 Oct 2008 02:15:16 -0700 (PDT) In-reply-to: <48FF87CE.2090502@austin.ibm.com> Content-disposition: inline Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Oct 22, 2008 15:06 -0500, Steven Pratt wrote: > We have set up a new page which is intended mainly for tracking the > performance of BTRFS, but in doing so we are testing other filesystems > as well (ext3, ext4, xfs and jfs). Thought some people here might find > the results useful. > > > The main page is here: > > http://btrfs.boxacle.net/ > > Information about the machine configuration, tests run, how to reproduce > the run and link to graphs of all the results are provided off of this > page. When looking at any individual test, links are provided to the > detail output from the tests including iostat, mpstat, oprofile data and > more. Steve, thanks for posting the numbers. They are definitely interesting. On the surface, ext4 is doing quite well overall (yay!), but the important point to realize is that btrfs is also providing a lot of extra function under the covers so it isn't necessarily a clear-cut answer on which one to pick. The extra CPU cost of btrfs will become increasingly irrelevant in the future I think. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc.