From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752319AbcEIP2x (ORCPT ); Mon, 9 May 2016 11:28:53 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:33769 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751413AbcEIP2w (ORCPT ); Mon, 9 May 2016 11:28:52 -0400 Date: Mon, 9 May 2016 17:28:48 +0200 From: Peter Zijlstra To: Andrew Hunter Cc: pavankumar kondeti , Pavan Kondeti , lkml , Mike Galbraith , Ingo Molnar , Paul Turner , Ben Segall , Matt Fleming , Morten Rasmussen , byungchul.park@lge.com Subject: Re: Migrated CFS task getting an unfair advantage Message-ID: <20160509152848.GJ3430@twins.programming.kicks-ass.net> References: <20160309120403.GK6344@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 09, 2016 at 11:00:42AM -0800, Andrew Hunter wrote: > At Google, we essentially reverted 88ec22d and the subsequent tweaks > to it, keeping vruntime absolute always , instead using > task_move_group_fair to change the basis of relative min_vruntime > between cpus. We found this made it a lot easier to reason about and > work with corss-cpu computations. I could post the patch if it would > be of interest... Andrew, any luck getting these patches brushed up?