Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=213c8af67f21c1dc0d50940b159d9521c95f3c89
Commit: 213c8af67f21c1dc0d50940b159d9521c95f3c89
Parent: b77d69db9f4ba03b2ed17e383c2d73ca89f5ab14
Author: Ingo Molnar <[EMAIL PROTECTED]>
AuthorDate: Tue Aug 28 12:53:24 2007 +0200
Committer: Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Tue Aug 28 12:53:24 2007 +0200
sched: small schedstat fix
small schedstat fix: the cfs_rq->wait_runtime 'sum of all runtimes'
statistics counters missed newly forked tasks and thus had a constant
negative skew. Fix this.
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
Signed-off-by: Peter Zijlstra <[EMAIL PROTECTED]>
Signed-off-by: Mike Galbraith <[EMAIL PROTECTED]>
---
kernel/sched_fair.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 0c71885..75f025d 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1121,8 +1121,10 @@ static void task_new_fair(struct rq *rq, struct
task_struct *p)
* The statistical average of wait_runtime is about
* -granularity/2, so initialize the task with that:
*/
- if (sysctl_sched_features & SCHED_FEAT_START_DEBIT)
+ if (sysctl_sched_features & SCHED_FEAT_START_DEBIT) {
p->se.wait_runtime = -(sched_granularity(cfs_rq) / 2);
+ schedstat_add(cfs_rq, wait_runtime, se->wait_runtime);
+ }
__enqueue_entity(cfs_rq, se);
}
-
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