From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Steve Muckle <steve.muckle@linaro.org>,
Linux PM list <linux-pm@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Ingo Molnar <mingo@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Morten Rasmussen <morten.rasmussen@arm.com>,
Juri Lelli <Juri.Lelli@arm.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Doug Smythies <doug.smythies@gmail.com>
Subject: Re: [RFC/RFT][PATCH 0/4] cpufreq / sched: iowait boost in intel_pstate and schedutil
Date: Wed, 07 Sep 2016 17:49:31 -0700 [thread overview]
Message-ID: <1473295771.154359.44.camel@linux.intel.com> (raw)
In-Reply-To: <3823270.hR1Z92UVHK@vostro.rjw.lan>
On Thu, 2016-09-08 at 02:44 +0200, Rafael J. Wysocki wrote:
> On Wednesday, September 07, 2016 05:35:50 PM Srinivas Pandruvada
> wrote:
> >
> > On Wed, 2016-09-07 at 17:22 -0700, Steve Muckle wrote:
> > >
> > > On Sat, Sep 03, 2016 at 02:56:48AM +0200, Rafael J. Wysocki
> > > wrote:
> > > >
> > > >
> > > > Please let me know what you think and if you can run some
> > > > benchmarks you
> > > > care about and see if the changes make any difference (this way
> > > > or
> > > > another),
> > > > please do that and let me know what you've found.
> > >
> > > LGTM (I just reviewed the first and last patch, skipping the
> > > intel_pstate ones).
> > >
> > > I was unable to see a conclusive power regression in Android
> > > audio,
> > > video or
> > > idle usecases on my hikey 96board.
> > Did you see any performance regression on Android workloads?
>
> That's with schedutil and IOwait boost. Why would performance
> regress?
Some Android tests reach thermal limits and aggressive throttling
causes performance issues.
Thanks,
Srinivas
>
> Thanks,
> Rafael
>
next prev parent reply other threads:[~2016-09-08 0:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-03 0:56 [RFC/RFT][PATCH 0/4] cpufreq / sched: iowait boost in intel_pstate and schedutil Rafael J. Wysocki
2016-09-03 0:58 ` [RFC/RFT][PATCH 1/4] cpufreq / sched: SCHED_CPUFREQ_IOWAIT flag to indicate iowait condition Rafael J. Wysocki
2016-09-03 1:02 ` [RFC/RFT][PATCH 2/4] cpufreq: intel_pstate: Change P-state selection algorithm for Core Rafael J. Wysocki
2016-09-03 1:03 ` [RFC/RFT][PATCH 3/4] cpufreq: intel_pstate: Use average P-state in get_target_pstate_default() Rafael J. Wysocki
2016-09-03 1:04 ` [RFC/RFT][PATCH 4/4] cpufreq: schedutil: Add iowait boosting Rafael J. Wysocki
2016-09-07 15:26 ` [RFC/RFT][PATCH 2/4] cpufreq: intel_pstate: Change P-state selection algorithm for Core Doug Smythies
2016-09-08 0:22 ` [RFC/RFT][PATCH 0/4] cpufreq / sched: iowait boost in intel_pstate and schedutil Steve Muckle
2016-09-08 0:35 ` Srinivas Pandruvada
2016-09-08 0:44 ` Rafael J. Wysocki
2016-09-08 0:49 ` Srinivas Pandruvada [this message]
2016-09-08 1:15 ` Rafael J. Wysocki
2016-09-08 15:02 ` Rafael J. Wysocki
2016-09-08 17:30 ` Srinivas Pandruvada
2016-09-08 19:26 ` Steve Muckle
2016-09-08 19:49 ` Srinivas Pandruvada
2016-09-08 0:37 ` Rafael J. Wysocki
-- strict thread matches above, loose matches on Subject: below --
2016-09-04 15:54 Doug Smythies
2016-09-04 23:54 ` Rafael J. Wysocki
2016-09-07 15:25 ` Doug Smythies
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