[PATCH v6 1/4] sched/fair: add util_est on top of PELT

2018-03-09 Thread Patrick Bellasi
The util_avg signal computed by PELT is too variable for some use-cases. For example, a big task waking up after a long sleep period will have its utilization almost completely decayed. This introduces some latency before schedutil will be able to pick the best frequency to run a task. The same

[PATCH v6 1/4] sched/fair: add util_est on top of PELT

2018-03-09 Thread Patrick Bellasi
The util_avg signal computed by PELT is too variable for some use-cases. For example, a big task waking up after a long sleep period will have its utilization almost completely decayed. This introduces some latency before schedutil will be able to pick the best frequency to run a task. The same