[RESEND,v3,3/3] cpufreq/schedutil: add rt utilization tracking

Message ID 1515505986-21997-4-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 Jan. 9, 2018, 1:53 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 2f52ec0..d8ba31b 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -183,7 +183,7 @@  static void sugov_get_util(unsigned long *util, unsigned long *max, int cpu)
 
 	cfs_max = arch_scale_cpu_capacity(NULL, cpu);
 
-	*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;
 }