Messages in this thread Patch in this message | | | From | Yafang Shao <> | Subject | [PATCH v4 7/8] sched, dl: support sched_stat_runtime tracepoint for deadline sched class | Date | Sun, 5 Sep 2021 14:35:46 +0000 |
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The runtime of a DL task has already been there, so we only need to add a tracepoint.
One difference between fair task and DL task is that there is no vruntime in dl task. To reuse the sched_stat_runtime tracepoint, '0' is passed as vruntime for DL task.
The output of this tracepoint for DL task as follows, top-36462 [047] d.h. 6083.452103: sched_stat_runtime: comm=top pid=36462 runtime=409898 [ns] vruntime=0 [ns]
Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Alison Chaiken <achaiken@aurora.tech> --- kernel/sched/deadline.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 51dd30990042..73fb33e1868f 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1268,6 +1268,8 @@ static void update_curr_dl(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); -- 2.18.2
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