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| author | Yuyang Du <yuyang.du@intel.com> | 2015-07-15 08:04:41 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-08-03 12:24:31 +0200 |
| commit | 139622343ef31941effc6de6a5a9320371a00e62 (patch) | |
| tree | beace946cd02feb0cb89e784ffc73187d7a9a658 /kernel/sched/debug.c | |
| parent | 1269557889b477e3e43ab99a21035ddf8f7cea4d (diff) | |
| download | blackbird-op-linux-139622343ef31941effc6de6a5a9320371a00e62.tar.gz blackbird-op-linux-139622343ef31941effc6de6a5a9320371a00e62.zip | |
sched/fair: Provide runnable_load_avg back to cfs_rq
The cfs_rq's load_avg is composed of runnable_load_avg and blocked_load_avg.
Before this series, sometimes the runnable_load_avg is used, and sometimes
the load_avg is used. Completely replacing all uses of runnable_load_avg
with load_avg may be too big a leap, i.e., the blocked_load_avg is concerned
to result in overrated load. Therefore, we get runnable_load_avg back.
The new cfs_rq's runnable_load_avg is improved to be updated with all of the
runnable sched_eneities at the same time, so the one sched_entity updated and
the others stale problem is solved.
Signed-off-by: Yuyang Du <yuyang.du@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: arjan@linux.intel.com
Cc: bsegall@google.com
Cc: dietmar.eggemann@arm.com
Cc: fengguang.wu@intel.com
Cc: len.brown@intel.com
Cc: morten.rasmussen@arm.com
Cc: pjt@google.com
Cc: rafael.j.wysocki@intel.com
Cc: umgwanakikbuti@gmail.com
Cc: vincent.guittot@linaro.org
Link: http://lkml.kernel.org/r/1436918682-4971-7-git-send-email-yuyang.du@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/debug.c')
| -rw-r--r-- | kernel/sched/debug.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 74f276f5568c..641511771ae6 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -207,6 +207,8 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) #ifdef CONFIG_SMP SEQ_printf(m, " .%-30s: %lu\n", "load_avg", cfs_rq->avg.load_avg); + SEQ_printf(m, " .%-30s: %lu\n", "runnable_load_avg", + cfs_rq->runnable_load_avg); SEQ_printf(m, " .%-30s: %lu\n", "util_avg", cfs_rq->avg.util_avg); SEQ_printf(m, " .%-30s: %ld\n", "removed_load_avg", |
