diff options
author | Ingo Molnar <mingo@elte.hu> | 2007-10-02 14:13:08 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2007-10-02 14:13:08 +0200 |
commit | 30084fbd1caa4b2e1a336fcdef60b68129d1d8f8 (patch) | |
tree | 379ed73cbe0dc469ccacb148937594f39d35f46c | |
parent | 3146b39c185f8a436d430132457e84fa1d8f8208 (diff) | |
download | op-kernel-dev-30084fbd1caa4b2e1a336fcdef60b68129d1d8f8.zip op-kernel-dev-30084fbd1caa4b2e1a336fcdef60b68129d1d8f8.tar.gz |
sched: fix profile=sleep
fix sleep profiling - we lost this chunk in the CFS merge.
Found-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r-- | kernel/sched_fair.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index c9fbe8e..67c67a8 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -639,6 +639,16 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se) se->block_start = 0; se->sum_sleep_runtime += delta; + + /* + * Blocking time is in units of nanosecs, so shift by 20 to + * get a milliseconds-range estimation of the amount of + * time that the task spent sleeping: + */ + if (unlikely(prof_on == SLEEP_PROFILING)) { + profile_hits(SLEEP_PROFILING, (void *)get_wchan(tsk), + delta >> 20); + } } #endif } |