diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2008-02-01 11:45:14 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-02-01 11:45:14 -0500 |
commit | 5df7fa1c62146a0933767d040d400013310dbcc7 (patch) | |
tree | bfd108f0d33a91d4f2476df7f5a7f562b640eb97 /kernel/time/timer_list.c | |
parent | 1001d0a9ee74a468077dfd4da0565174e88de26b (diff) |
tick-sched: add more debug information
To allow better diagnosis of tick-sched related, especially NOHZ
related problems, we need to know when the last wakeup via an irq
happened and when the CPU left the idle state.
Add two fields (idle_waketime, idle_exittime) to the tick_sched
structure and add them to the timer_list output.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/time/timer_list.c')
-rw-r--r-- | kernel/time/timer_list.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index 12c5f4cb6b8c..d3d94c1a0fd2 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c | |||
@@ -166,6 +166,8 @@ static void print_cpu(struct seq_file *m, int cpu, u64 now) | |||
166 | P(idle_calls); | 166 | P(idle_calls); |
167 | P(idle_sleeps); | 167 | P(idle_sleeps); |
168 | P_ns(idle_entrytime); | 168 | P_ns(idle_entrytime); |
169 | P_ns(idle_waketime); | ||
170 | P_ns(idle_exittime); | ||
169 | P_ns(idle_sleeptime); | 171 | P_ns(idle_sleeptime); |
170 | P(last_jiffies); | 172 | P(last_jiffies); |
171 | P(next_jiffies); | 173 | P(next_jiffies); |