From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757103Ab0JLJaz (ORCPT ); Tue, 12 Oct 2010 05:30:55 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:53902 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756954Ab0JLJay (ORCPT ); Tue, 12 Oct 2010 05:30:54 -0400 Date: Tue, 12 Oct 2010 11:30:44 +0200 From: Ingo Molnar To: William Pitcock Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, efault@gmx.de, kernel@kolivas.org Subject: Re: [PATCH try 5] CFS: Add hierarchical tree-based penalty. Message-ID: <20101012093044.GD20366@elte.hu> References: <20101012092524.F0BF4CE142@carpathia.dereferenced.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20101012092524.F0BF4CE142@carpathia.dereferenced.org> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -1.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.0 required=5.9 tests=BAYES_20 autolearn=no SpamAssassin version=3.2.5 -1.0 BAYES_20 BODY: Bayesian spam probability is 5 to 20% [score: 0.0567] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * William Pitcock wrote: > Inspired by the recent change to BFS by Con Kolivas, this patch causes > vruntime to be penalized based on parent depth from their root task > group. > > I have, for the moment, decided to make it a default feature since the > design of CFS ensures that broken applications depending on task > enqueue behaviour behaving traditionally will continue to work. Just curious, is this v5 submission a reply to Peter's earlier review of your v3 patch? If yes then please explicitly outline the changes you did so that Peter and others do not have to guess about the direction your work is taking. Thanks, Ingo