From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 24 Sep 2001 08:55:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 24 Sep 2001 08:55:26 -0400 Received: from compsciinn-gw.customer.ALTER.NET ([157.130.84.134]:16001 "EHLO picard.csihq.com") by vger.kernel.org with ESMTP id ; Mon, 24 Sep 2001 08:55:12 -0400 Message-ID: <02aa01c144f8$14a461e0$e1de11cc@csihq.com> From: "Mike Black" To: "linux-kernel" Cc: "Andrew Morton" Subject: 2.4.10 and ext3 Date: Mon, 24 Sep 2001 08:54:42 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Status report... Upgraded from 2.4.8 to 2.4.10 (with new 2.4.10 patch). This is on a dual PIII/1Ghz FibreChannel 2G RAM Single-threaded Seq Read improves a LOT (doubles+) Multi-threaded Seq Read improved a bit Seq Write improves a LOT Rand Write decreases a bit All are using less CPU time. Here's 2.4.8 Linux yeti 2.4.8 #2 SMP Fri Aug 17 05:50:03 EDT 2001 i686 unknown Done 9/5/01 root@yeti:/usr5# tiobench.pl --size 4000 Size is MB, BlkSz is Bytes, Read, Write, and Seeks are MB/secd . -T File Block Num Seq Read Rand Read Seq Write Rand Write Dir Size Size Thr Rate (CPU%) Rate (CPU%) Rate (CPU%) Rate (CPU%) ------- ------ ------- --- ----------- ----------- ----------- ----------- . 4000 4096 1 39.83 30.8% 0.572 0.87% 21.83 55.8% 1.226 0.70% . 4000 4096 2 21.30 21.2% 0.711 1.52% 9.695 70.0% 1.274 1.05% . 4000 4096 4 18.86 19.6% 0.844 1.92% 9.568 70.1% 1.228 1.62% . 4000 4096 8 17.38 18.7% 0.983 2.12% 5.995 98.7% 1.255 1.54% Here's 2.4.10 tiobench.pl --size 4000 Size is MB, BlkSz is Bytes, Read, Write, and Seeks are MB/secd . -T File Block Num Seq Read Rand Read Seq Write Rand Write Dir Size Size Thr Rate (CPU%) Rate (CPU%) Rate (CPU%) Rate (CPU%) ------- ------ ------- --- ----------- ----------- ----------- ----------- . 4000 4096 1 85.57 46.9% 0.689 0.83% 26.02 28.7% 0.993 0.57% . 4000 4096 2 28.08 16.4% 0.805 1.36% 25.71 36.4% 1.062 0.57% . 4000 4096 4 22.50 13.5% 0.927 1.76% 16.69 26.3% 1.097 0.72% . 4000 4096 8 20.37 12.6% 1.062 2.00% 13.01 21.5% 1.114 0.85% ________________________________________ Michael D. Black Principal Engineer mblack@csihq.com 321-676-2923,x203 http://www.csihq.com Computer Science Innovations http://www.csihq.com/~mike My home page FAX 321-676-2355