From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030206AbXCMJWO (ORCPT ); Tue, 13 Mar 2007 05:22:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965622AbXCMJWO (ORCPT ); Tue, 13 Mar 2007 05:22:14 -0400 Received: from mail03.syd.optusnet.com.au ([211.29.132.184]:52795 "EHLO mail03.syd.optusnet.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965607AbXCMJWN (ORCPT ); Tue, 13 Mar 2007 05:22:13 -0400 From: Con Kolivas To: Ingo Molnar Subject: Re: [PATCH][RSDL-mm 0/7] RSDL cpu scheduler for 2.6.21-rc3-mm2 Date: Tue, 13 Mar 2007 20:21:50 +1100 User-Agent: KMail/1.9.5 Cc: Mike Galbraith , linux kernel mailing list , ck list , Linus Torvalds , Andrew Morton References: <200703111457.17624.kernel@kolivas.org> <1173762639.7944.45.camel@Homer.simpson.net> <20070313081805.GA22327@elte.hu> In-Reply-To: <20070313081805.GA22327@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200703132021.50712.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 13 March 2007 19:18, Ingo Molnar wrote: > * Mike Galbraith wrote: > > [...] The situation as we speak is that you can run cpu intensive > > tasks while watching eye-candy. With RSDL, you can't, you feel the > > non-interactive load instantly. [...] > > i have to agree with Mike that this is a material regression that cannot > be talked around. > > Con, we want RSDL to /improve/ interactivity. Having new scheduler > interactivity logic that behaves /worse/ in the presence of CPU hogs, > which CPU hogs are even reniced to +5, than the current interactivity > code, is i think a non-starter. Could you try to fix this, please? Good > interactivity in the presence of CPU hogs (be them default nice level or > nice +5) is _the_ most important scheduler interactivity metric. > Anything else is really secondary. Well I guess you must have missed where I asked him if he would be happy if I changed +5 metrics to do whatever he wanted and he refused to answer me. That would easily fit within that scheme. Any percentage of nice value he chose. I suggest 50% of nice 0. Heck I can even increase it if he likes. All I asked for was an answer as to whether that would satisfy his criterion. > Ingo > > ps. please be nice to each other - both of you are long-time > scheduler contributors who did lots of cool stuff :-) I have been civil. Only one email crossed the line on my part and I apologise. -- -ck