Re: [PATCH] sched/debug: Add new tracepoints to track util_est

[Valentin Schneider]

On 27/05/20 17:39, vincent.donnefort@xxxxxxx wrote:
> From: Vincent Donnefort <vincent.donnefort@xxxxxxx>
>
> The util_est signals are key elements for EAS task placement and
> frequency selection. Having tracepoints to track these signals enables
> load-tracking and schedutil testing and/or debugging by a toolkit.
>
> Signed-off-by: Vincent Donnefort <vincent.donnefort@xxxxxxx>
>

To put it more bluntly, we can't really do task placement / load tracking
testing if util_est is enabled (which reminds me we may want to get rid of
the SCHED_FEAT at some point, it's been default on since ~v4.17), since
there can be noticeable gaps between util_avg and util_est.

Reviewed-by: Valentin Schneider <valentin.schneider@xxxxxxx>