| From 53d8b3e798d7bb049a93a4ee97a2298241bda77f Mon Sep 17 00:00:00 2001 |
| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Sun, 2 May 2010 20:55:06 +0200 |
| Subject: [PATCH] sched: Warn on rt throttling |
| |
| commit 4b40e94233914642735b0a366cee9d0634224430 in tip. |
| |
| 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: Paul Gortmaker <paul.gortmaker@windriver.com> |
| --- |
| 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 a1791d7..4d7521f 100644 |
| --- a/kernel/sched_rt.c |
| +++ b/kernel/sched_rt.c |
| @@ -586,6 +586,7 @@ 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; |
| -- |
| 1.7.0.4 |
| |
