Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754099AbZITIuX (ORCPT ); Sun, 20 Sep 2009 04:50:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753153AbZITIuX (ORCPT ); Sun, 20 Sep 2009 04:50:23 -0400 Received: from dd2934.kasserver.com ([85.13.129.136]:37948 "EHLO dd2934.kasserver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751646AbZITIuW (ORCPT ); Sun, 20 Sep 2009 04:50:22 -0400 Message-ID: <4AB5ECD0.7010903@datenparkplatz.de> Date: Sun, 20 Sep 2009 10:50:24 +0200 From: Ulrich Lukas User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 CC: Linux Kernel Mailing List Subject: Re: Poor desktop responsiveness with background I/O-operations References: <4AB59CBB.8090907@datenparkplatz.de> <20090920080728.73bfe2a1@infradead.org> In-Reply-To: <20090920080728.73bfe2a1@infradead.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 618 Lines: 20 Arjan van de Ven wrote: > can you try the following two things? > > echo 4096 > /sys/block/sda/queue/nr_requests > for i in `pidof kjournald` ; do ionice -c1 -p $i ; done I tried this just now, but it doesn't change things much. I can do a more testing later today. > I assume you're using CFQ. Yes, it's CFQ. (see .config of my previous posting) Filesystem is EXT4. -- 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/