diff options
| author | Vincent Guittot <vincent.guittot@linaro.org> | 2018-06-28 17:45:07 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-07-15 23:51:20 +0200 |
| commit | 3727e0e16340cbdf83818f5bf0113505c6876057 (patch) | |
| tree | 64faaa3a8d79c83a2929f6c50af75f0005c4d021 /kernel/sched/sched.h | |
| parent | 3ae117c6cd7c4783819a0766aa97b9493a8a0f62 (diff) | |
sched/dl: Add dl_rq utilization tracking
Similarly to what happens with RT tasks, CFS tasks can be preempted by DL
tasks and the CFS's utilization might no longer describes the real
utilization level.
Current DL bandwidth reflects the requirements to meet deadline when tasks are
enqueued but not the current utilization of the DL sched class. We track
DL class utilization to estimate the system utilization.
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
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: claudio@evidence.eu.com
Cc: daniel.lezcano@linaro.org
Cc: dietmar.eggemann@arm.com
Cc: joel@joelfernandes.org
Cc: juri.lelli@redhat.com
Cc: luca.abeni@santannapisa.it
Cc: patrick.bellasi@arm.com
Cc: quentin.perret@arm.com
Cc: rjw@rjwysocki.net
Cc: valentin.schneider@arm.com
Cc: viresh.kumar@linaro.org
Link: http://lkml.kernel.org/r/1530200714-4504-5-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 405dd9ba6b39..ab8b5296b5f6 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -856,6 +856,7 @@ struct rq { u64 rt_avg; u64 age_stamp; struct sched_avg avg_rt; + struct sched_avg avg_dl; u64 idle_stamp; u64 avg_idle; |