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Vincent Guittot 1936c53ce8 sched/fair: Reduce the periodic update duration 
Instead of using the cfs_rq_is_decayed() which monitors all *_avg
and *_sum, we create a cfs_rq_has_blocked() which only takes care of
util_avg and load_avg. We are only interested by these 2 values which are
decaying faster than the *_sum so we can stop the periodic update earlier.

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: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: brendan.jackman@arm.com
Cc: dietmar.eggemann@arm.com
Cc: morten.rasmussen@foss.arm.com
Cc: valentin.schneider@arm.com
Link: http://lkml.kernel.org/r/1518517879-2280-3-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 		2018-03-09 07:59:22 +01:00
..
Makefile sched/idle: Merge kernel/sched/idle.c and kernel/sched/idle_task.c 2018-03-04 12:39:33 +01:00
autogroup.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
autogroup.h sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
clock.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
completion.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
core.c sched/nohz: Clean up nohz enter/exit 2018-03-09 07:59:19 +01:00
cpuacct.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
cpudeadline.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
cpudeadline.h sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
cpufreq.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
cpufreq_schedutil.c cpufreq/schedutil: Rewrite CPUFREQ_RT support 2018-03-09 07:59:15 +01:00
cpupri.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
cpupri.h sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
cputime.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
deadline.c cpufreq/schedutil: Remove unused CPUFREQ_DL 2018-03-09 07:59:14 +01:00
debug.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
fair.c sched/fair: Reduce the periodic update duration 2018-03-09 07:59:22 +01:00
features.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idle.c sched/idle: Merge kernel/sched/idle.c and kernel/sched/idle_task.c 2018-03-04 12:39:33 +01:00
isolation.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
loadavg.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
membarrier.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
rt.c cpufreq/schedutil: Rewrite CPUFREQ_RT support 2018-03-09 07:59:15 +01:00
sched-pelt.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sched.h sched/nohz: Stop NOHZ stats when decayed 2018-03-09 07:59:21 +01:00
stats.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
stats.h sched: Clean up and harmonize the coding style of the scheduler code base 2018-03-03 15:50:21 +01:00
stop_task.c sched: Clean up and harmonize the coding style of the scheduler code base 2018-03-03 15:50:21 +01:00
swait.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
topology.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
wait.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00
wait_bit.c sched/headers: Simplify and clean up header usage in the scheduler 2018-03-04 12:39:29 +01:00