Messages in this thread |  | | | Date | Thu, 9 Aug 2007 10:26:56 +0200 | | From | Ingo Molnar <> | | Subject | Re: Question: RT schedular : task_tick_rt(struct rq *rq, struct task_struct *p) : decreases overhead when rq->nr_running == 1 |
| |
* Dmitry Adamushko <dmitry.adamushko@gmail.com> wrote:
> I guess, the following thing would do a better job: > > - we do need reschedule() _only_ if there are other task on the _same_ > queue (for this prio level) :
ah, indeed.
> --- kernel/sched_rt-prev.c 2007-08-09 09:55:10.000000000 +0200 > +++ kernel/sched_rt.c 2007-08-09 09:58:53.000000000 +0200 > @@ -207,6 +207,11 @@ static void task_tick_rt(struct rq *rq, > return; > > p->time_slice = static_prio_timeslice(p->static_prio); > + > + /* We are the only element on the queue. */ > + if (p->run_list.prev == p->run_list.next) > + return; > +
i've applied your patch - could you please send a SOB line?
Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |