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Re: [RFC v2 3/7] Improve the tracking of active utilisation

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [RFC v2 3/7] Improve the tracking of active utilisation
Date 2016-04-05 16:50 +0200
Message-ID <rkAsN-5ez-1@gated-at.bofh.it> (permalink)
References <rj91E-6gd-5@gated-at.bofh.it> <rj9bl-6jH-31@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Apr 01, 2016 at 05:12:29PM +0200, Luca Abeni wrote:
> +	/*
> +	 * We cannot use inactive_task_timer() to invoke sub_running_bw()
> +	 * at the 0-lag time, because the task could have been migrated
> +	 * while SCHED_OTHER in the meanwhile.
> +	 */
> +	if (hrtimer_active(&p->dl.inactive_timer) &&
> +		!hrtimer_callback_running(&p->dl.inactive_timer))
>  		sub_running_bw(&p->dl, &rq->dl);

hrtimer_is_queued() ?

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Re: [RFC v2 3/7] Improve the tracking of active utilisation Peter Zijlstra <peterz@infradead.org> - 2016-04-05 16:50 +0200
  Re: [RFC v2 3/7] Improve the tracking of active utilisation luca abeni <luca.abeni@unitn.it> - 2016-04-05 19:20 +0200

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