diff options
| author | Srivatsa Vaddagiri <vatsa@codeaurora.org> | 2014-07-23 15:16:04 +0530 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:00:00 -0700 |
| commit | f41fd0eca9950970d7e16f4fdfa84aba77c77b19 (patch) | |
| tree | f64ae6296bd741b33ba2f4e062c0dae0d8cd6c97 /kernel | |
| parent | 39f974c48880622a71422c35a3b3271cd5467230 (diff) | |
sched: window-stats: Fix incorrect calculation of partial_demand
When using MAX_POLICY, partial_demand is calculated incorrectly as 0.
Fix this by picking maximum of previous 4 windows and most recent
sample.
Change-Id: I27850a510746a63b5382c84761920fc021b876c5
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/core.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index d9c9f0119146..f6492a1755fc 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1204,9 +1204,14 @@ update_history(struct rq *rq, struct task_struct *p, u32 runtime, int samples, return; if (!new_window) { - for (ridx = 0; ridx < RAVG_HIST_SIZE - 1; ++ridx) + for (ridx = 0; ridx < RAVG_HIST_SIZE - 1; ++ridx) { sum += hist[ridx]; + if (hist[ridx] > max) + max = hist[ridx]; + } sum += runtime; + if (runtime > max) + max = runtime; goto compute_demand; } |