Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751189AbWEZRia (ORCPT ); Fri, 26 May 2006 13:38:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751193AbWEZRia (ORCPT ); Fri, 26 May 2006 13:38:30 -0400 Received: from py-out-1112.google.com ([64.233.166.180]:12943 "EHLO py-out-1112.google.com") by vger.kernel.org with ESMTP id S1751189AbWEZRi3 convert rfc822-to-8bit (ORCPT ); Fri, 26 May 2006 13:38:29 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=UxxrsXYVgKowfmxgCUDT0BxWAul9ZjLmEv8HbMBQhyjNF13n92cLbORjiYaOKivYmEGTywLaMLkyh0V1armBupW3c6buRViivA8xbKHLN/+aYH3jrmUfRinggc7MUKdUWM/IWCS5k0GYpVm/Yu47sPdPZmeqPziPBpZj0dvXEIA= Message-ID: <5c49b0ed0605261037p6a32db1fva693ea72b596f896@mail.gmail.com> Date: Fri, 26 May 2006 10:37:56 -0700 From: "Nate Diller" To: "Wu Fengguang" Subject: Re: [PATCH 23/33] readahead: backward prefetching method Cc: "Andrew Morton" , linux-kernel@vger.kernel.org In-Reply-To: <348469547.47755@ustc.edu.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <20060524111246.420010595@localhost.localdomain> <348469547.47755@ustc.edu.cn> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 594 Lines: 16 On 5/24/06, Wu Fengguang wrote: > Readahead policy for reading backward. Just curious, who actually does this? I noticed you submitted patches to do profiling of actual read loads, so this must be based on data you've seen. Could you include a comment in the actual code relating to the loads that it affects? thanks NATE - 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/