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| author | Vincent Guittot | 2016-11-08 10:53:44 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2016-11-16 10:29:09 +0100 |
| commit | d31b1a66cbe0931733583ad9d9e8c6cfd710907d (patch) | |
| tree | 44b05ab2336d8b074632d3f61dca8c2b1c720e6f /kernel/events/core.c | |
| parent | sched/fair: Fix hierarchical order in rq->leaf_cfs_rq_list (diff) | |
| download | kernel-qcow2-linux-d31b1a66cbe0931733583ad9d9e8c6cfd710907d.tar.gz kernel-qcow2-linux-d31b1a66cbe0931733583ad9d9e8c6cfd710907d.tar.xz kernel-qcow2-linux-d31b1a66cbe0931733583ad9d9e8c6cfd710907d.zip | |
sched/fair: Factorize PELT update
Every time we modify load/utilization of sched_entity, we start to
sync it with its cfs_rq. This update is done in different ways:
- when attaching/detaching a sched_entity, we update cfs_rq and then
we sync the entity with the cfs_rq.
- when enqueueing/dequeuing the sched_entity, we update both
sched_entity and cfs_rq metrics to now.
Use update_load_avg() everytime we have to update and sync cfs_rq and
sched_entity before changing the state of a sched_enity.
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten.Rasmussen@arm.com
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bsegall@google.com
Cc: kernellwp@gmail.com
Cc: pjt@google.com
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1478598827-32372-4-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/events/core.c')
0 files changed, 0 insertions, 0 deletions