Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751122AbWE2DEs (ORCPT ); Sun, 28 May 2006 23:04:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751129AbWE2DEs (ORCPT ); Sun, 28 May 2006 23:04:48 -0400 Received: from smtp.ustc.edu.cn ([202.38.64.16]:13994 "HELO ustc.edu.cn") by vger.kernel.org with SMTP id S1751122AbWE2DEr (ORCPT ); Sun, 28 May 2006 23:04:47 -0400 Message-ID: <348871884.29158@ustc.edu.cn> X-EYOUMAIL-SMTPAUTH: wfg@mail.ustc.edu.cn Date: Mon, 29 May 2006 11:04:45 +0800 From: Wu Fengguang To: kernel@kolivas.org Cc: Diego Calleja , linux-kernel@vger.kernel.org, folkert@vanheusden.com, ak@suse.de, akpm@osdl.org, mstone@mathom.us Subject: Re: [PATCH 00/33] Adaptive read-ahead V12 Message-ID: <20060529030445.GB5994@mail.ustc.edu.cn> Mail-Followup-To: Wu Fengguang , kernel@kolivas.org, Diego Calleja , linux-kernel@vger.kernel.org, folkert@vanheusden.com, ak@suse.de, akpm@osdl.org, mstone@mathom.us References: <348469535.17438@ustc.edu.cn> <20060526235436.GD4294@vanheusden.com> <200605271000.12061.kernel@kolivas.org> <200605271008.42137.kernel@kolivas.org> <20060529002032.c5a955a5.diegocg@gmail.com> <1148855503.447a24cface24@vds.kolivas.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1148855503.447a24cface24@vds.kolivas.org> User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 971 Lines: 22 On Mon, May 29, 2006 at 08:31:43AM +1000, kernel@kolivas.org wrote: > Quoting Diego Calleja : > > > That leaves another question that I (a poor user) may have missed: Why is > > adaptive read-ahead compile-time configurable instead of completely > > replacing > > the old system? > > That was done to appease the users out there that had worse performance with it. > In the early stages of development of this code it was rather detrimental on an > ordinary desktop. Fortunately that seems to have gotten a lot better. I don't > think the final version should be a compile time option. It's either "adaptive" > and better everywhere or it's not. Hehe, I have a dream - that it helps *everywhere* ;-) Wu - 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/