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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-15 17:00:10 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:10 +0200 |
| commit | ddc972975091ba5f839bf24d0f9ef54fe90ee741 (patch) | |
| tree | 438406a2930bdcb36c8a1bc6778aab49e1fba36d /kernel/sched.c | |
| parent | d822cecedad88b69a7d68aa8d49e1f238aa320c7 (diff) | |
| download | lwn-ddc972975091ba5f839bf24d0f9ef54fe90ee741.tar.gz lwn-ddc972975091ba5f839bf24d0f9ef54fe90ee741.zip | |
sched debug: check spread
debug feature: check how well we schedule within a reasonable
vruntime 'spread' range. (note that CPU overload can increase
the spread, so this is not a hard condition, but normal loads
should be within the spread.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index fe1165b226a1..213294fdcd0f 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -250,6 +250,9 @@ struct cfs_rq { * It is set to NULL otherwise (i.e when none are currently running). */ struct sched_entity *curr; + + unsigned long nr_spread_over; + #ifdef CONFIG_FAIR_GROUP_SCHED struct rq *rq; /* cpu runqueue to which this cfs_rq is attached */ |