From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262982AbTDVHzH (ORCPT ); Tue, 22 Apr 2003 03:55:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262984AbTDVHzH (ORCPT ); Tue, 22 Apr 2003 03:55:07 -0400 Received: from [80.190.48.67] ([80.190.48.67]:46596 "EHLO mx00.linux-systeme.com") by vger.kernel.org with ESMTP id S262982AbTDVHzG (ORCPT ); Tue, 22 Apr 2003 03:55:06 -0400 From: Marc-Christian Petersen Organization: Working Overloaded Linux Kernel To: Michael B Allen , linux-kernel@vger.kernel.org Subject: Re: What's the deal McNeil? Bad interactive behavior in X w/ RH's 2.4.18 Date: Tue, 22 Apr 2003 10:06:59 +0200 User-Agent: KMail/1.5.1 References: <20030422034821.6a57acc0.mba2000@ioplex.com> In-Reply-To: <20030422034821.6a57acc0.mba2000@ioplex.com> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200304221006.09601.m.c.p@wolk-project.de> Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 22 April 2003 09:48, Michael B Allen wrote: Hi Michael, > I'm running Red Hat 7.3 with their stock 2.4.18-3 kernel on an IBM > T30. Once every few hours X locks up for 5-10 seconds while the disk > grinds. If I type in an Xterm the characters are not echoed until the > disk grinding stops. Then they all come out in a bunch and life is back > to normal. > I asked about this on kernelnewbies but the only response was something > regarding some kind of change to the 'elevator code' but they didn't > know of a solution. The problem is, since 2.4.19-pre5 the elevator has changed to give more throughput but also introduce pauses and even stops while disk i/o. Redhat's 2.4.18 is not 2.4.18 but something 2.4.19ish(-pre|-pre-ac or so). > I would like very much for this behavior to go away as it is extremely > annoying. If there is a patch please let me know where I can get it. There are some hacks. One by Andrea Arcangeli, one by Neil Schemenauer and one by Con Kolivas and me. Search the archives please (lowlat elevator/io scheduler) ciao, Marc