From 1c83437e80186832a9a48dbb6b8868d28e40e562 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 5 Oct 2011 13:32:34 +0200 Subject: sched: Warn on rt throttling The default rt-throttling is a source of never ending questions. Warn once when we go into throttling so folks have that info in dmesg. Signed-off-by: Thomas Gleixner Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1110051331480.18778@ionos Signed-off-by: Ingo Molnar --- kernel/sched_rt.c | 1 + 1 file changed, 1 insertion(+) (limited to 'kernel') diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index 3023fd1..056cbd2 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -655,6 +655,7 @@ static int sched_rt_runtime_exceeded(struct rt_rq *rt_rq) if (rt_rq->rt_time > runtime) { rt_rq->rt_throttled = 1; + printk_once(KERN_WARNING "sched: RT throttling activated\n"); if (rt_rq_throttled(rt_rq)) { sched_rt_rq_dequeue(rt_rq); return 1; -- cgit v1.1