From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270397AbTGRWxl (ORCPT ); Fri, 18 Jul 2003 18:53:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270404AbTGRWxk (ORCPT ); Fri, 18 Jul 2003 18:53:40 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:19851 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S270397AbTGRWwy (ORCPT ); Fri, 18 Jul 2003 18:52:54 -0400 Message-ID: <3F187DB1.1040309@pobox.com> Date: Fri, 18 Jul 2003 19:07:29 -0400 From: Jeff Garzik Organization: none User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021213 Debian/1.2.1-2.bunk X-Accept-Language: en MIME-Version: 1.0 To: Stefan Cars CC: linux-kernel@vger.kernel.org Subject: Re: ICH5 SATA high interrupt/system load again... References: <20030718233631.F31074@guldivar.globalwire.se> In-Reply-To: <20030718233631.F31074@guldivar.globalwire.se> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Stefan Cars wrote: > Hi! > > I've seen the discussion regarding high interrupt / system load on the > ICH5 SATA and I'm asking what todo about it if I can't put my BIOS into > "normal" mode. This machine is an Dell Precision 360 and for some stupid > reason they have for this model removed the possibility in the BIOS to > change this sort of things (you can't change much really). I'm using > 2.4.21-ac4. Just to extract a simple tar file brings the system load up > and the computer is slow... > > > Here is some info: > tjatte:/import# cat /proc/interrupts > CPU0 > 0: 557725 XT-PIC timer > 1: 102 XT-PIC keyboard > 2: 0 XT-PIC cascade > 5: 0 XT-PIC ehci_hcd > 9: 16409116 XT-PIC libata, usb-uhci, eth0 Hum... interesting. I had seen reports of this before, but they were of the variety "drivers/ide has high load, libata doesn't". So it seems intrinsic of the hardware, which is a useful data point. Have you tried messing around with interrupt routing in BIOS setup? Since ATA, USB, and eth0 are all on the same interrupt, changing that may affect the situation positively. Jeff