Re: [PATCH 2/2] thermal: cpufreq_cooling: Reuse effective_cpu_util()

[Peter Zijlstra]

On Thu, Oct 22, 2020 at 01:30:01PM +0200, Rafael J. Wysocki wrote:

> Many people use intel_pstate in the active mode with HWP enabled too.

We now have HWP-passive supported, afaict. So we should discourage that.

That is; I'll care less and less about people not using schedutil as
time goes on.

> Arguably, that doesn't need to compute the effective utilization, so I
> guess it is not relevant for the discussion here, but it is not
> negligible in general.

Why not? cpufreq-cooling should still be able to throttle the system by
setting HWP.Highest_Performance no?

In which case it still needs an energy estimate.