Messages in this thread | | | From | Valentin Schneider <> | Subject | Re: [PATCH] sched/debug: Add new tracepoints to track util_est | Date | Wed, 03 Jun 2020 13:04:26 +0100 |
| |
On 27/05/20 17:39, vincent.donnefort@arm.com wrote: > From: Vincent Donnefort <vincent.donnefort@arm.com> > > 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@arm.com> >
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@arm.com>
| |