From 95fd58e8dadb7aa707628a2187c626bb897c49ec Mon Sep 17 00:00:00 2001 From: Yafang Shao Date: Sun, 5 Sep 2021 14:35:46 +0000 Subject: [PATCH] sched/dl: Support sched_stat_runtime tracepoint for deadline sched class 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 Signed-off-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/r/20210905143547.4668-8-laoar.shao@gmail.com --- 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);