Re: [RFC][PATCH v0.1 5/6] sched/topology: Allow .setpolicy() cpufreq drivers to enable EAS

From: Peter Zijlstra
Date: Tue Nov 19 2024 - 13:22:32 EST


On Mon, Nov 11, 2024 at 02:54:43PM +0100, Rafael J. Wysocki wrote:

> Or what about ondemand? Is it alway completely broken with EAS?

I thought that thing was mostly considered broken anyway :-)

> > For plain (non-intel_pstate) powersave and performance we could replace
> > sugov_effective_cpu_perf()
> > that determines the OPP of the perf-domain by the OPP they will be
> > choosing, but for the rest?
>
> I generally think that depending on schedutil for EAS is a mistake.

Well, the thinking was that we wanted to move to a single governor, and
not proliferate things.