From: Dietmar Eggemann <[email protected]> Since now we have besides frequency invariant also cpu (uarch plus max system frequency) invariant cfs_rq::utilization_load_avg both, frequency and cpu scaling happens as part of the load tracking. So cfs_rq::utilization_load_avg does not have to be scaled by the original capacity of the cpu again.
Cc: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Signed-off-by: Dietmar Eggemann <[email protected]> --- kernel/sched/fair.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 5375ab1..a85c34b 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4807,12 +4807,11 @@ static int select_idle_sibling(struct task_struct *p, int target) static int get_cpu_usage(int cpu) { unsigned long usage = cpu_rq(cpu)->cfs.utilization_load_avg; - unsigned long capacity = capacity_orig_of(cpu); if (usage >= SCHED_LOAD_SCALE) - return capacity; + return capacity_orig_of(cpu); - return (usage * capacity) >> SCHED_LOAD_SHIFT; + return usage; } /* -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
