Re: [Resend][PATCH 2/3] cpufreq: schedutil: Add iowait boosting

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [Resend][PATCH 2/3] cpufreq: schedutil: Add iowait boosting
Date	2016-09-13 09:50 +0200
Message-ID	<sgQDE-7fb-27@gated-at.bofh.it> (permalink)
References	<sfC01-8jQ-1@gated-at.bofh.it> <sfC01-8jQ-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Sat, Sep 10, 2016 at 12:00:31AM +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> 
> Modify the schedutil cpufreq governor to boost the CPU
> frequency if the SCHED_CPUFREQ_IOWAIT flag is passed to
> it via cpufreq_update_util().
> 
> If that happens, the frequency is set to the maximum during
> the first update after receiving the SCHED_CPUFREQ_IOWAIT flag
> and then the boost is reduced by half during each following update.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Looks-good-to: Steve Muckle <smuckle@linaro.org>

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>

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[PATCH 0/3] cpufreq / sched: iowait boost in intel_pstate and schedutil "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-10 00:00 +0200
  [Resend][PATCH 1/3] cpufreq / sched: SCHED_CPUFREQ_IOWAIT flag to indicate iowait condition "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-10 00:00 +0200
    Re: [Resend][PATCH 1/3] cpufreq / sched: SCHED_CPUFREQ_IOWAIT flag  to indicate iowait condition Peter Zijlstra <peterz@infradead.org> - 2016-09-13 09:40 +0200
  [PATCH 3/3] cpufreq: intel_pstate: Use IOWAIT flag in Atom algorithm "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-10 00:00 +0200
    [Update][PATCH 3/3] cpufreq: intel_pstate: Use IOWAIT flag in Atom algorithm "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-14 02:00 +0200
  [Resend][PATCH 2/3] cpufreq: schedutil: Add iowait boosting "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-09-10 00:00 +0200
    Re: [Resend][PATCH 2/3] cpufreq: schedutil: Add iowait boosting Peter Zijlstra <peterz@infradead.org> - 2016-09-13 09:50 +0200

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