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| author |  Ingo Molnar <mingo@elte.hu>
| 2009-09-13 18:15:54 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu>
| 2009-09-13 18:17:28 +0200 |
| commit | f977bb4937857994312fff4f9c2cad336a36a932 (patch) | |
| tree | ce4736f585cfb9ecb3f959f6fe77997852dd00e3 /kernel/sched_fair.c | |
| parent | perf sched: Add 'perf sched trace', improve documentation (diff) | |
| download | linux-f977bb4937857994312fff4f9c2cad336a36a932.tar.gz linux-f977bb4937857994312fff4f9c2cad336a36a932.tar.bz2 linux-f977bb4937857994312fff4f9c2cad336a36a932.zip | |
perf_counter, sched: Add sched_stat_runtime tracepoint
This allows more precise tracking of how the scheduler accounts
(and acts upon) a task having spent N nanoseconds of CPU time.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_fair.c')
| -rw-r--r-- | kernel/sched_fair.c | 1 |
1 files changed, 1 insertions, 0 deletions
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); } |