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authorPaul Turner <pjt@google.com>2011-01-21 20:45:02 -0800
committerIngo Molnar <mingo@elte.hu>2011-01-26 12:31:03 +0100
commit05ca62c6ca17f39b88fa956d5ebc1fa6e93ad5e3 (patch)
treea56f4f47dd23ef65ebb5c579adb1fbb29ba3faed /kernel
parentb815f1963e47b9b69bb17e0588bd5af5b1114ae0 (diff)
downloadlinux-linaro-stable-05ca62c6ca17f39b88fa956d5ebc1fa6e93ad5e3.tar.gz
sched: Use rq->clock_task instead of rq->clock for correctly maintaining load averages
The delta in clock_task is a more fair attribution of how much time a tg has been contributing load to the current cpu. While not really important it also means we're more in sync (by magnitude) with respect to periodic updates (since __update_curr deltas are clock_task based). Signed-off-by: Paul Turner <pjt@google.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20110122044852.007092349@google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched_fair.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 1997383ba4d6..0c26e2df450e 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -725,7 +725,7 @@ static void update_cfs_load(struct cfs_rq *cfs_rq, int global_update)
if (cfs_rq->tg == &root_task_group)
return;
- now = rq_of(cfs_rq)->clock;
+ now = rq_of(cfs_rq)->clock_task;
delta = now - cfs_rq->load_stamp;
/* truncate load history at 4 idle periods */