Messages in this thread Patch in this message | | | Date | Tue, 18 Dec 2007 18:41:21 +0100 | From | Peter Zijlstra <> | Subject | [PATCH 1/3] sched: rt: account the cpu time during the tick |
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Realtime tasks would not account their runtime during ticks. Which would lead to:
struct sched_param param = { .sched_priority = 10 }; pthread_setschedparam(pthread_self(), SCHED_FIFO, ¶m);
while (1) ;
Not showing up in top.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> --- kernel/sched_rt.c | 2 ++ 1 file changed, 2 insertions(+)
Index: linux-2.6/kernel/sched_rt.c =================================================================== --- linux-2.6.orig/kernel/sched_rt.c +++ linux-2.6/kernel/sched_rt.c @@ -837,6 +837,8 @@ static void prio_changed_rt(struct rq *r static void task_tick_rt(struct rq *rq, struct task_struct *p) { + update_curr_rt(rq); + /* * RR tasks need a special form of timeslice management. * FIFO tasks have no timeslices. --
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