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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-10-05 13:32:34 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-10-06 12:47:04 +0200 |
| commit | 1c83437e80186832a9a48dbb6b8868d28e40e562 (patch) | |
| tree | 5b9170301b6cca9980f019c52bee31c3cc84817c /kernel | |
| parent | 4939602a2441306008c6dca38216b741d4e09a42 (diff) | |
| download | kernel-common-1c83437e80186832a9a48dbb6b8868d28e40e562.tar.gz kernel-common-1c83437e80186832a9a48dbb6b8868d28e40e562.tar.bz2 kernel-common-1c83437e80186832a9a48dbb6b8868d28e40e562.zip | |
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 <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1110051331480.18778@ionos
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched_rt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index 3023fd1ef364..056cbd2e2a27 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; |