From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261168AbTJCUOd (ORCPT ); Fri, 3 Oct 2003 16:14:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261176AbTJCUOd (ORCPT ); Fri, 3 Oct 2003 16:14:33 -0400 Received: from fw.osdl.org ([65.172.181.6]:29353 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S261168AbTJCUOc (ORCPT ); Fri, 3 Oct 2003 16:14:32 -0400 Date: Fri, 3 Oct 2003 13:13:29 -0700 From: Andrew Morton To: Steven Pratt Cc: hannal@us.ibm.com, lse-tech@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: [Lse-tech] Re: Minutes from 10/1 LSE Call Message-Id: <20031003131329.61fc0783.akpm@osdl.org> In-Reply-To: <3F7DCEED.9080801@austin.ibm.com> References: <37940000.1065035945@w-hlinder> <20031001162916.5fc2241b.akpm@osdl.org> <3F7C7AA9.2050404@austin.ibm.com> <20031002123618.7947d232.akpm@osdl.org> <3F7DCEED.9080801@austin.ibm.com> X-Mailer: Sylpheed version 0.9.6 (GTK+ 1.2.10; i586-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 Steven Pratt wrote: > > Get the latest rawread from > http://www-124.ibm.com/developerworks/opensource/linuxperf/rawread/rawread.html Sigh, I was afraid of that. My previous outings with rawread have not been happy. Maybe your detailed descriptions will help. > But as long as I have your attention, there is one other thing about > these runs which bothers me, which is that the mm tree is doing horribly > on 1k and 2k block sizes. I looks like readahead is not functioning > properly for these requst sizes. There are several problems with readahead under specific circumstances. I need to have a session with it.