From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261270AbTKDTKe (ORCPT ); Tue, 4 Nov 2003 14:10:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261276AbTKDTKe (ORCPT ); Tue, 4 Nov 2003 14:10:34 -0500 Received: from nat-68-172-17-106.ne.rr.com ([68.172.17.106]:10484 "EHLO trip.jpj.net") by vger.kernel.org with ESMTP id S261270AbTKDTKd (ORCPT ); Tue, 4 Nov 2003 14:10:33 -0500 Subject: ext3 performance inconsistencies, 2.4/2.6 From: Paul Venezia To: linux-kernel@vger.kernel.org Content-Type: text/plain Message-Id: <1067973024.23788.24.camel@d8000> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Tue, 04 Nov 2003 14:10:24 -0500 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I've been running bonnie++ filesystems testing on an IBM x335 server recently. This box uses the MPT RAID controller, but I've disabled the RAID and am addressing the disks individually. I'm getting wildly different results between 2.4.20-20-9 (RedHat mod), 2.4.22 (stock), and 2.6.0-test9. The full results are here: http://groove.jpj.net/x335-test.html The base distro is RedHat 9, there are no extraneous daemons running or modules loaded. I'm using a dedicated drive as the scratch directory. I'm looking for some insight as to why I'm seeing such a disparity in performance. The server has Dual P4 3.06Ghz CPUs, 1.5GB RAM, two 36GB Ultra320 disks. bonnie++ is run as bonnie++ -d /test -s 3g -m x335-`uname -r` -n 200 -x 2 -u root -q Thanks -Paul