[RESEND,v2,2/2] cpufreq/schedutil: add rt utilization tracking

Message ID 1501854022-22128-3-git-send-email-vincent.guittot@linaro.org
State New
Headers show
Series
  • sched/rt: track rt rq utilization
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Commit Message

Vincent Guittot Aug. 4, 2017, 1:40 p.m.
Add both cfs and rt utilization when selecting an OPP as rt can preempt and
steal cfs's running time.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>


---
 kernel/sched/cpufreq_schedutil.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.7.4

Patch

diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 076a2e3..04fabea 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -161,7 +161,7 @@  static void sugov_get_util(unsigned long *util, unsigned long *max)
 
 	cfs_max = arch_scale_cpu_capacity(NULL, smp_processor_id());
 
-	*util = min(rq->cfs.avg.util_avg, cfs_max);
+	*util = min(rq->cfs.avg.util_avg + rq->rt.avg.util_avg, cfs_max);
 	*max = cfs_max;
 }