From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263747AbTKXKI5 (ORCPT ); Mon, 24 Nov 2003 05:08:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263751AbTKXKI5 (ORCPT ); Mon, 24 Nov 2003 05:08:57 -0500 Received: from [194.118.56.16] ([194.118.56.16]:63928 "EHLO mia.0xff.at") by vger.kernel.org with ESMTP id S263747AbTKXKIz (ORCPT ); Mon, 24 Nov 2003 05:08:55 -0500 Subject: LSI53C1030 (Fustion MPT) performance From: Karl Pitrich To: linux-kernel@vger.kernel.org Content-Type: text/plain Message-Id: <1069668564.2372.127.camel@warp.fabafsc.fabagl.fabasoft.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Mon, 24 Nov 2003 11:09:24 +0100 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org hi, i got a new ibm intellistation z pro dual xeon (6221-49G) with on board Fusion MPT chipset (LSI53C1030) and fast U160 disks. 2.4.20-8 (redhat) and 2.6.0-test9-vanilla (each customer compiled minimal kernels) both yield very poor disk performance. i didn't do specific benkchmarking, but mv'ing a 3GB $HOME to another partition takes at least 4x the time as on my old P4 workstation with IDE drive. is poor performance with this controller a known problem? could that have to do something with smp? in 2.6.0, the driver's cvs-versions seem to match the ones in the sources offered by LSI for download. lkml-archives and google weren't all too helpful. any info/help apreciated, / karl PS: in the course of this i studied dmesg and found: calibrating APIC timer ... ..... CPU clock speed is 3066.0234 MHz. ..... host bus clock speed is 133.0314 MHz. is 'host bus clock speed' != front side bus speed? this shows up also on other p4 machines with much faster FSB than 133 mhz.