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| author | Yafang Shao <laoar.shao@gmail.com> | 2021-09-05 14:35:44 +0000 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-10-05 15:51:49 +0200 |
| commit | ed7b564cfdd0668efbd739d0b4e2d67797293f32 (patch) | |
| tree | 4c56eeb40a5ca4705ec4e2082d3361ffa3610eaf /kernel/sched/rt.c | |
| parent | 847fc0cd0664fcb2a08ac66df6b85935361ec454 (diff) | |
| download | linux-ed7b564cfdd0668efbd739d0b4e2d67797293f32.tar.bz2 | |
sched/rt: Support sched_stat_runtime tracepoint for RT sched class
The runtime of a RT task has already been there, so we only need to
add a tracepoint.
One difference between fair task and RT task is that there is no vruntime
in RT task. To reuse the sched_stat_runtime tracepoint, '0' is passed as
vruntime for RT task.
The output of this tracepoint for RT task as follows,
stress-9748 [039] d.h. 113.519352: sched_stat_runtime: comm=stress pid=9748 runtime=997573 [ns] vruntime=0 [ns]
stress-9748 [039] d.h. 113.520352: sched_stat_runtime: comm=stress pid=9748 runtime=997627 [ns] vruntime=0 [ns]
stress-9748 [039] d.h. 113.521352: sched_stat_runtime: comm=stress pid=9748 runtime=998203 [ns] vruntime=0 [ns]
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210905143547.4668-6-laoar.shao@gmail.com
Diffstat (limited to 'kernel/sched/rt.c')
| -rw-r--r-- | kernel/sched/rt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 95a7c3ad2dc3..5d251112e51c 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -1012,6 +1012,8 @@ static void update_curr_rt(struct rq *rq) schedstat_set(curr->stats.exec_max, max(curr->stats.exec_max, delta_exec)); + trace_sched_stat_runtime(curr, delta_exec, 0); + curr->se.sum_exec_runtime += delta_exec; account_group_exec_runtime(curr, delta_exec); |