On Mon, 2012-09-24 at 18:59 +0530, Raghavendra K T wrote: > However Rik had a genuine concern in the cases where runqueue is not > equally distributed and lockholder might actually be on a different run > queue but not running.
Load should eventually get distributed equally -- that's what the load-balancer is for -- so this is a temporary situation. We already try and favour the non running vcpu in this case, that's what yield_to_task_fair() is about. If its still not eligible to run, tough luck. > Do you think instead of using rq->nr_running, we could get a global > sense of load using avenrun (something like avenrun/num_onlinecpus) To what purpose? Also, global stuff is expensive, so you should try and stay away from it as hard as you possibly can. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
