Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263512AbTIHVLV (ORCPT ); Mon, 8 Sep 2003 17:11:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263553AbTIHVLV (ORCPT ); Mon, 8 Sep 2003 17:11:21 -0400 Received: from nat9.steeleye.com ([65.114.3.137]:1796 "EHLO fenric.sc.steeleye.com") by vger.kernel.org with ESMTP id S263512AbTIHVLU convert rfc822-to-8bit (ORCPT ); Mon, 8 Sep 2003 17:11:20 -0400 Message-ID: <3F5CF045.DDDE475C@SteelEye.com> Date: Mon, 08 Sep 2003 17:10:29 -0400 From: Paul Clements X-Mailer: Mozilla 4.7 [en] (X11; I; Linux 2.2.13 i686) X-Accept-Language: en MIME-Version: 1.0 To: Sven =?iso-8859-1?Q?K=F6hler?= CC: Pavel Machek , linux-kernel@vger.kernel.org Subject: Re: [NBD] patch and documentation References: <3F5CB554.5040507@upb.de> <20030908193838.GA435@elf.ucw.cz> <3F5CE0E5.A5A08A91@SteelEye.com> <3F5CE3E6.8070201@upb.de> Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 629 Lines: 25 Sven K?hler wrote: > Well, i guess the cache uses a value of 256 sectors to do read-ahead and > such. Well it sounds like the real problem here is the vm_max_readahead setting then. Try this: cat /proc/sys/vm/max-readahead Probably, it's set to 31 on your system. Try something like the following: echo "126" > /proc/sys/vm/max-readahead I think that should help out. -- Paul - 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/