From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262080AbUCABpM (ORCPT ); Sun, 29 Feb 2004 20:45:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262104AbUCABpM (ORCPT ); Sun, 29 Feb 2004 20:45:12 -0500 Received: from mail-08.iinet.net.au ([203.59.3.40]:15314 "HELO mail.iinet.net.au") by vger.kernel.org with SMTP id S262080AbUCABpH (ORCPT ); Sun, 29 Feb 2004 20:45:07 -0500 Message-ID: <4042959D.5020100@cyberone.com.au> Date: Mon, 01 Mar 2004 12:45:01 +1100 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040122 Debian/1.6-1 X-Accept-Language: en MIME-Version: 1.0 To: Nick Piggin CC: Andrew Morton , linux-kernel@vger.kernel.org, Nikita@Namesys.COM Subject: Re: 2.6.4-rc1-mm1 References: <20040229140617.64645e80.akpm@osdl.org> <40428B95.1000600@cyberone.com.au> <20040229171452.2e209835.akpm@osdl.org> <40429228.1080301@cyberone.com.au> In-Reply-To: <40429228.1080301@cyberone.com.au> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Nick Piggin wrote: > > > Andrew Morton wrote: > >> One point I would make is that if a workload is only achieving 5% CPU >> anyway, we shouldn't optimise for it. Sure, it's nice to be able to >> get it >> up to 7% but it is much more important to get the 50% CPU workload up to >> 70%. The 5% problem is a fiscal one, not an engineering one ;) >> > > I agree. I'm much more interested in getting light and medium swapping > working better. > Just so I'm not misunderstood, I must add that I found Nikita's patch to definitely help light and medium swapping kbuild runs. The fact that it *really* helped heavy swapping is a bonus. But I agree that we need more meaningful tests too. Maybe things like overloading apache or a mail or database server might be interesting.