[PATCH v3 09/12] Revert "sched: Put rq's sched_avg under CONFIG_FAIR_GROUP_SCHED"
From: dietmar.eggemann@arm.com (Dietmar Eggemann)
Date: 2014-07-14 17:54:19
Also in:
lkml
From: dietmar.eggemann@arm.com (Dietmar Eggemann)
Date: 2014-07-14 17:54:19
Also in:
lkml
[...]
quoted
In that same discussion ISTR a suggestion about adding avg_running time, as opposed to the current avg_runnable. The sum of avg_running should be much more accurate, and still react correctly to migrations.I haven't look in details but I agree that avg_running would be much more accurate than avg_runnable and should probably fit the requirement. Does it means that we could re-add the avg_running (or something similar) that has disappeared during the review of load avg tracking patchset ?
Are you referring to '[RFC PATCH 14/14] sched: implement usage tracking' https://lkml.org/lkml/2012/2/1/769 from Paul Turner? __update_entity_runnable_avg() has an additional parameter 'running' so that it can be called for a) sched_entities in update_entity_load_avg(): __update_entity_runnable_avg(..., se->on_rq, cfs_rq->curr == se)) b) rq's in update_rq_runnable_avg(): __update_entity_runnable_avg(..., runnable, runnable); I can see how it gives us two different signals for a sched_entity but for a rq? Do I miss something here? -- Dietmar [...]