From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S968447AbXG3ULa (ORCPT ); Mon, 30 Jul 2007 16:11:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S966935AbXG3ULU (ORCPT ); Mon, 30 Jul 2007 16:11:20 -0400 Received: from e4.ny.us.ibm.com ([32.97.182.144]:55146 "EHLO e4.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1763973AbXG3ULS (ORCPT ); Mon, 30 Jul 2007 16:11:18 -0400 Subject: Re: bonnie++ benchmarks for ext2,ext3,ext4,jfs,reiserfs,xfs,zfs on software raid 5 From: Dave Kleikamp To: Justin Piszcz Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com, linux-raid@vger.kernel.org In-Reply-To: References: Content-Type: text/plain Date: Mon, 30 Jul 2007 15:11:06 -0500 Message-Id: <1185826266.9448.5.camel@kleikamp.austin.ibm.com> Mime-Version: 1.0 X-Mailer: Evolution 2.8.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2007-07-30 at 10:29 -0400, Justin Piszcz wrote: > Overall JFS seems the fastest but reviewing the mailing list for JFS it > seems like there a lot of problems, especially when people who use JFS > 1 > year, their speed goes to 5 MiB/s over time and the defragfs tool has been > removed(?) from the source/Makefile and on Google it says not to use it > due to corruption. The defragfs tool was an unported holdover from OS/2, which is why it was removed. There never was a working Linux version. I have some ideas to improve jfs allocation to avoid fragmentation problems, but jfs isn't my full-time job anymore, so I can't promise anything. I'm not sure about the corruption claims. I'd like to hear some specifics on that. Anyway, for enterprise use, I couldn't recommend jfs, since there is no full-time maintainer. Thanks, Shaggy -- David Kleikamp IBM Linux Technology Center