Commit 67e2be02 authored Dec 20, 2007 by Peter Zijlstra Committed by Ingo Molnar Dec 20, 2007

sched: rt: account the cpu time during the tick



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, &param);

	while (1) ;

Not showing up in top.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

parent fbdcf18d

kernel/sched_rt.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -208,6 +208,8 @@ move_one_task_rt(struct rq this_rq, int this_cpu, struct rq busiest,

		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.