Re: [RFC PATCH v4 09/12] sched/fair: Introduce an energy estimation helper function

[Quentin Perret]

On Monday 09 Jul 2018 at 17:42:26 (+0200), Peter Zijlstra wrote:
> On Mon, Jul 09, 2018 at 04:28:26PM +0100, Quentin Perret wrote:
> > What about moving schedutil_freq_util() to sched.h and give it a more
> > generic name (total_cpu_util() ?) with no dependencies on
> > CONFIG_CPU_FREQ_GOV_SCHEDUTIL ? Also, 'energy_util' would have to be
> > renamed I guess (busy_time_util ?).
> 
> Bit big for an inline,

True, but that will be used in the wake-up path ...

> and I don't think there's much point using all
> this without schedutil.

For that total_cpu_util() function I was suggesting, the main point
would be to avoid code duplication with scale_rt_capacity(). Not sure
if that matters ?

Thanks,
Quentin