diff options
| -rw-r--r-- | include/trace/events/sched.h | 33 | ||||
| -rw-r--r-- | kernel/sched_fair.c | 1 |
2 files changed, 34 insertions, 0 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index b48f1ad7c946..4069c43f4187 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -380,6 +380,39 @@ TRACE_EVENT(sched_stat_wait, ); /* + * Tracepoint for accounting runtime (time the task is executing + * on a CPU). + */ +TRACE_EVENT(sched_stat_runtime, + + TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime), + + TP_ARGS(tsk, runtime, vruntime), + + TP_STRUCT__entry( + __array( char, comm, TASK_COMM_LEN ) + __field( pid_t, pid ) + __field( u64, runtime ) + __field( u64, vruntime ) + ), + + TP_fast_assign( + memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN); + __entry->pid = tsk->pid; + __entry->runtime = runtime; + __entry->vruntime = vruntime; + ) + TP_perf_assign( + __perf_count(runtime); + ), + + TP_printk("task: %s:%d runtime: %Lu [ns], vruntime: %Lu [ns]", + __entry->comm, __entry->pid, + (unsigned long long)__entry->runtime, + (unsigned long long)__entry->vruntime) +); + +/* * Tracepoint for accounting sleep time (time the task is not runnable, * including iowait, see below). */ diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index aa7f84121016..a097e909e80f 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -513,6 +513,7 @@ static void update_curr(struct cfs_rq *cfs_rq) if (entity_is_task(curr)) { struct task_struct *curtask = task_of(curr); + trace_sched_stat_runtime(curtask, delta_exec, curr->vruntime); cpuacct_charge(curtask, delta_exec); account_group_exec_runtime(curtask, delta_exec); } |