Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964918AbcJ1H5I (ORCPT ); Fri, 28 Oct 2016 03:57:08 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:43410 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934268AbcJ1H5H (ORCPT ); Fri, 28 Oct 2016 03:57:07 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Fri, 28 Oct 2016 00:57:05 -0700 From: Vikram Mulukutla To: Peter Zijlstra Cc: linux-kernel@vger.kernel.org, Ingo Molnar , Srivatsa Vaddagiri , Steve Muckle , Olav Haugan , Syed Rameez Mustafa , Joonwoo Park , Pavankumar Kondeti , Saravana Kannan , Bryan Huntsman , Juri Lelli , Morten Rasmussen , Dietmar Eggemann , Chris Redpath , Robin Randhawa , Patrick Bellasi , Todd Kjos , Srinath Sridharan , Andres Oportus , Leo Yan , Vincent Guittot , Vikram Mulukutla Subject: Re: [RFC PATCH 0/3] sched: Introduce Window Assisted Load Tracking In-Reply-To: <20161028074953.GU3102@twins.programming.kicks-ass.net> References: <1477638642-17428-1-git-send-email-markivx@codeaurora.org> <20161028074953.GU3102@twins.programming.kicks-ass.net> Message-ID: <9ac6a40a330b82e424dc2f56ea7fd976@codeaurora.org> User-Agent: Roundcube Webmail/1.2.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 786 Lines: 21 On 2016-10-28 00:49, Peter Zijlstra wrote: > On Fri, Oct 28, 2016 at 12:10:39AM -0700, Vikram Mulukutla wrote: >> This RFC patch has been tested on live X86 machines with the following >> sanity >> and benchmark results (thanks to Juri Lelli, Dietmar Eggeman, Patrick >> Bellasi >> for initial code reviews): >> >> (Tested on an Intel i7 2nd generation CPU, 8GB RAM, Nvidia GTX950Ti >> graphics, >> with the same frequency list as above. Running Ubuntu 16.04 on a >> v4.8.2 >> baseline. WALT window size was 10ms. Only deltas above 3% are >> considered >> non-noise.Power measured with Intel RAPL counters) > > Was this comparison done using the use_walt_metric sysctl knob? Yes, it was. You will want to see numbers against a pure 4.8.2 without any of the WALT code, correct?