From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765060AbXGYW24 (ORCPT ); Wed, 25 Jul 2007 18:28:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758658AbXGYW2s (ORCPT ); Wed, 25 Jul 2007 18:28:48 -0400 Received: from wa-out-1112.google.com ([209.85.146.183]:51741 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756237AbXGYW2r (ORCPT ); Wed, 25 Jul 2007 18:28:47 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=sZ1c20/nFph9v/feSZYZ6aPZMNxuS/pvtf3dqT72Pr7PoQTJXBzr0pEHpafj02Aclu77F/9E8a8ccMKuj0zUgDOmlIBgEP41BREuplvKpZp/C7Iv6I0FqWZy95LMuTWgGH6eRp/Um9FGoAyVRatYwueAirFjjksHQ37QWUxUZ5A= Message-ID: Date: Wed, 25 Jul 2007 18:28:46 -0400 From: "Michael Chang" To: "Paul Jackson" Subject: Re: [ck] Re: -mm merge plans for 2.6.23 Cc: "Ingo Molnar" , david@lang.hm, nickpiggin@yahoo.com.au, Valdis.Kletnieks@vt.edu, ray-lk@madrabbit.org, jesper.juhl@gmail.com, linux-kernel@vger.kernel.org, ck@vds.kolivas.org, linux-mm@kvack.org, akpm@linux-foundation.org, rene.herman@gmail.com In-Reply-To: <20070725150509.4d80a85e.pj@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <46A58B49.3050508@yahoo.com.au> <46A6D7D2.4050708@gmail.com> <46A6DFFD.9030202@gmail.com> <30701.1185347660@turing-police.cc.vt.edu> <46A7074B.50608@gmail.com> <20070725082822.GA13098@elte.hu> <46A70D37.3060005@gmail.com> <20070725113401.GA23341@elte.hu> <20070725150509.4d80a85e.pj@sgi.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 7/25/07, Paul Jackson wrote: > Question: > Could those who have found this prefetch helps them alot say how > many disks they have? In particular, is their swap on the same > disk spindle as their root and user files? I have found that swap prefetch helped on all of the four machines machine I have, although the effect is more noticeable on machines with slower disks. They all have one hard disk, and root and swap were always on the same disk. I have no idea how to determine how many disk spindles they have, but since the drives are mainly low-end consumer models sold with low-end sub $500 PCs... -- Michael Chang Please avoid sending me Word or PowerPoint attachments. Send me ODT, RTF, or HTML instead. See http://www.gnu.org/philosophy/no-word-attachments.html Thank you.