Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270443AbTG1SZh (ORCPT ); Mon, 28 Jul 2003 14:25:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270444AbTG1SZh (ORCPT ); Mon, 28 Jul 2003 14:25:37 -0400 Received: from fw.osdl.org ([65.172.181.6]:22929 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S270443AbTG1SZd (ORCPT ); Mon, 28 Jul 2003 14:25:33 -0400 Date: Mon, 28 Jul 2003 11:40:41 -0700 From: Andrew Morton To: Valdis.Kletnieks@vt.edu Cc: kernel@kolivas.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] O10int for interactivity Message-Id: <20030728114041.2c8ce156.akpm@osdl.org> In-Reply-To: <200307281808.h6SI8C5k004439@turing-police.cc.vt.edu> References: <200307280112.16043.kernel@kolivas.org> <200307281808.h6SI8C5k004439@turing-police.cc.vt.edu> X-Mailer: Sylpheed version 0.9.4 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 710 Lines: 21 Valdis.Kletnieks@vt.edu wrote: > > I am, however, able to get 'xmms' to skip. The reason is that the CPU is being > scheduled quite adequately, but I/O is *NOT*. > > ... > I'm guessing that the anticipatory scheduler is the culprit here. Soon as I figure > out the incantations to use the deadline scheduler, I'll report back.... Try decreasing the expiry times in /sys/block/hda/queue/iosched: read_batch_expire read_expire write_batch_expire write_expire - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/