Messages in this thread | | | Date | Wed, 3 Jun 2020 14:15:30 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH] sched/debug: Add new tracepoints to track util_est |
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On Wed, Jun 03, 2020 at 01:04:26PM +0100, Valentin Schneider wrote: > > 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>
Thanks!
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