Re: [PATCH 2/4 v4] sched/rt: add rt_rq utilization tracking

[Peter Zijlstra]

On Fri, Mar 16, 2018 at 12:25:39PM +0100, Vincent Guittot wrote:
> diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
> index 783eacf..a8003a9 100644
> --- a/kernel/sched/sched.h
> +++ b/kernel/sched/sched.h
> @@ -592,6 +592,8 @@ struct rt_rq {
>  	unsigned long		rt_nr_total;
>  	int			overloaded;
>  	struct plist_head	pushable_tasks;
> +
> +	struct sched_avg avg;

We only want this for the root cgroup, right? So why is this per cgroup?

That is, I was expecting it to be rq::rt_avg or something.