From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261562AbVFMOGx (ORCPT ); Mon, 13 Jun 2005 10:06:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261577AbVFMOGx (ORCPT ); Mon, 13 Jun 2005 10:06:53 -0400 Received: from smtp207.mail.sc5.yahoo.com ([216.136.129.97]:21137 "HELO smtp207.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S261562AbVFMOGt (ORCPT ); Mon, 13 Jun 2005 10:06:49 -0400 Message-ID: <42AD92F2.7080108@yahoo.com.au> Date: Tue, 14 Jun 2005 00:06:42 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050324 Debian/1.7.6-1 X-Accept-Language: en MIME-Version: 1.0 To: Alan Cox CC: Ondrej Zary , Grant Coady , Linux Kernel Mailing List Subject: Re: Odd IDE performance drop 2.4 vs 2.6? References: <42AD6362.1000109@rainbow-software.org> <1118669975.13260.23.camel@localhost.localdomain> In-Reply-To: <1118669975.13260.23.camel@localhost.localdomain> 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 Alan Cox wrote: > On Llu, 2005-06-13 at 11:43, Ondrej Zary wrote: > >>I see this problem too with i430TX chipset (the south bridge and thus >>IDE controller is the same as in i440LX/EX and BX/ZX). > > > Make sure you have pre-empt disabled and the antcipatory I/O scheduler > disabled. > I don't think that those could explain it. Increasing readahead with the `blockdev` command has been known to fix similar reports. Send instant messages to your online friends http://au.messenger.yahoo.com