From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752441AbbCWOIN (ORCPT ); Mon, 23 Mar 2015 10:08:13 -0400 Received: from casper.infradead.org ([85.118.1.10]:56273 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752342AbbCWOIK (ORCPT ); Mon, 23 Mar 2015 10:08:10 -0400 Date: Mon, 23 Mar 2015 15:08:01 +0100 From: Peter Zijlstra To: Morten Rasmussen Cc: mingo@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, yuyang.du@intel.com, preeti@linux.vnet.ibm.com, mturquette@linaro.org, nico@linaro.org, rjw@rjwysocki.net, juri.lelli@arm.com, linux-kernel@vger.kernel.org Subject: Re: [RFCv3 PATCH 18/48] sched: Track blocked utilization contributions Message-ID: <20150323140801.GH23123@twins.programming.kicks-ass.net> References: <1423074685-6336-1-git-send-email-morten.rasmussen@arm.com> <1423074685-6336-19-git-send-email-morten.rasmussen@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1423074685-6336-19-git-send-email-morten.rasmussen@arm.com> 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, Feb 04, 2015 at 06:30:55PM +0000, Morten Rasmussen wrote: > Introduces the blocked utilization, the utilization counter-part to > cfs_rq->utilization_load_avg. It is the sum of sched_entity utilization > contributions of entities that were recently on the cfs_rq that are > currently blocked. Combined with sum of contributions of entities > currently on the cfs_rq or currently running > (cfs_rq->utilization_load_avg) this can provide a more stable average > view of the cpu usage. So it would be nice if you add performance numbers for all these patches that add accounting muck..