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Message-ID: <20161028074953.GU3102@twins.programming.kicks-ass.net>
Date: Fri, 28 Oct 2016 09:49:53 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Vikram Mulukutla <markivx@...eaurora.org>
Cc: linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
Srivatsa Vaddagiri <vatsa@...eaurora.org>,
Steve Muckle <steve.muckle@...aro.org>,
Olav Haugan <ohaugan@...eaurora.org>,
Syed Rameez Mustafa <rameezmustafa@...eaurora.org>,
Joonwoo Park <joonwoop@...eaurora.org>,
Pavankumar Kondeti <pkondeti@...eaurora.org>,
Saravana Kannan <skannan@...eaurora.org>,
Bryan Huntsman <bryanh@...eaurora.org>,
Juri Lelli <juri.lelli@....com>,
Morten Rasmussen <morten.rasmussen@....com>,
Dietmar Eggemann <dietmar.eggemann@....com>,
Chris Redpath <chris.redpath@....com>,
Robin Randhawa <robin.randhawa@....com>,
Patrick Bellasi <patrick.bellasi@....com>,
Todd Kjos <tkjos@...gle.com>,
Srinath Sridharan <srinathsr@...gle.com>,
Andres Oportus <andresoportus@...gle.com>,
Leo Yan <leo.yan@...aro.org>,
Vincent Guittot <vincent.guittot@...aro.org>,
Vikram Mulukutla <markivx@...eauorora.org>
Subject: Re: [RFC PATCH 0/3] sched: Introduce Window Assisted Load Tracking
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?
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