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Re: [PATCH] cpufreq: schedutil: Always trace frequency if it does not change

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On 22-03-17, 10:29, Peter Zijlstra wrote:
> On Wed, Mar 22, 2017 at 01:56:53AM +0100, Rafael J. Wysocki wrote:

> > However, the same problem may occur for a cpufreq driver that doesn't
> > support fast frequency switching and implements the ->target callback
> > (that is, it doesn't use frequency tables), but trace_cpu_frequency()
> > is not called if frequency updates are skipped in that case.
> 
> I'm having trouble parsing that; am I right in understanding this is the
> exact same scenario where only superfluous changes are omitted?

Yes. Just for a different driver type.

-- 
viresh

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[PATCH] cpufreq: schedutil: Always trace frequency if it does not change "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-22 02:10 +0100
  Re: [PATCH] cpufreq: schedutil: Always trace frequency if it does  not change Viresh Kumar <viresh.kumar@linaro.org> - 2017-03-22 05:20 +0100
  Re: [PATCH] cpufreq: schedutil: Always trace frequency if it does  not change Peter Zijlstra <peterz@infradead.org> - 2017-03-22 10:40 +0100
    Re: [PATCH] cpufreq: schedutil: Always trace frequency if it does  not change Viresh Kumar <viresh.kumar@linaro.org> - 2017-03-22 11:30 +0100
    Re: [PATCH] cpufreq: schedutil: Always trace frequency if it does not change "Rafael J. Wysocki" <rafael@kernel.org> - 2017-03-22 14:00 +0100
      Re: [PATCH] cpufreq: schedutil: Always trace frequency if it does not change "Rafael J. Wysocki" <rafael@kernel.org> - 2017-03-22 15:20 +0100
      Re: [PATCH] cpufreq: schedutil: Always trace frequency if it does  not change Peter Zijlstra <peterz@infradead.org> - 2017-03-22 15:30 +0100
        Re: [PATCH] cpufreq: schedutil: Always trace frequency if it does not change "Rafael J. Wysocki" <rafael@kernel.org> - 2017-03-22 18:20 +0100
  [PATCH v2] cpufreq: schedutil: Trace frequency only if it has changed "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-22 18:40 +0100
    Re: [PATCH v2] cpufreq: schedutil: Trace frequency only if it has  changed Viresh Kumar <viresh.kumar@linaro.org> - 2017-03-23 05:40 +0100

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