diff options
| author | Diwakar Tundlam <dtundlam@nvidia.com> | 2012-05-07 15:12:25 -0700 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-07-01 09:15:12 -0700 |
| commit | 0b5a8a6f30fe0eb7919294c58ddedaeab069ce2a (patch) | |
| tree | 3846b0190c7345fa6067b66023661fa0f6705769 /include | |
| parent | 42b6ed043eb443b5a8e1de576aac124c3bcba4cb (diff) | |
scheduler: compute time-average nr_running per run-queue
Compute the time-average number of running tasks per run-queue for a
trailing window of a fixed time period. The detla add/sub to the
average value is weighted by the amount of time per nr_running value
relative to the total measurement period.
Change-Id: I076e24ff4ed65bed3b8dd8d2b279a503318071ff
Signed-off-by: Diwakar Tundlam <dtundlam@nvidia.com>
(cherry picked from commit 3a12d7499cee352e8a46eaf700259ba3c733f0e3)
Reviewed-on: http://git-master/r/111635
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sai Gurrappadi <sgurrappadi@nvidia.com>
Tested-by: Sai Gurrappadi <sgurrappadi@nvidia.com>
Reviewed-by: Peter Boonstoppel <pboonstoppel@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sched.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 5bb4dd2e4c59..c9e03a9aa956 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -139,6 +139,7 @@ extern int nr_processes(void); extern unsigned long nr_running(void); extern unsigned long nr_uninterruptible(void); extern unsigned long nr_iowait(void); +extern unsigned long avg_nr_running(void); extern unsigned long nr_iowait_cpu(int cpu); extern unsigned long this_cpu_load(void); |