Messages in this thread | | | Date | Tue, 27 Oct 2020 11:42:14 +0000 | From | Qais Yousef <> | Subject | Re: default cpufreq gov, was: [PATCH] sched/fair: check for idle core |
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On 10/27/20 11:26, Valentin Schneider wrote: > > On 27/10/20 11:11, Qais Yousef wrote: > > On 10/22/20 14:02, Peter Zijlstra wrote: > >> However I do want to retire ondemand, conservative and also very much > >> intel_pstate/active mode. I also have very little sympathy for > >> userspace. > > > > Userspace is useful for testing and sanity checking. Not sure if people use it > > to measure voltage/current at each frequency to generate > > dynamic-power-coefficient for their platform. Lukasz, Dietmar? > > > > It's valuable even just for cpufreq sanity checking - we have that test > that goes through increasing frequencies and asserts the work done is > monotonically increasing. This has been quite useful in the past to detect > broken bits. > > That *should* still be totally doable with any other governor by using the > scaling_{min, max}_freq sysfs interface.
True. This effectively makes every governor a potential user space governor.
/me not sure to be happy or grumpy about it
Thanks
-- Qais Yousef
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