[patch v6 8/8] sched: remove blocked_load_avg in tg

From: Alex Shi
Date: Fri May 10 2013 - 11:18:18 EST


blocked_load_avg sometime is too heavy and far bigger than runnable load
avg. that make balance make wrong decision. So better don't consider it.

Signed-off-by: Alex Shi <alex.shi@xxxxxxxxx>
---
kernel/sched/fair.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 91e60ac..75c200c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1339,7 +1339,7 @@ static inline void __update_cfs_rq_tg_load_contrib(struct cfs_rq *cfs_rq,
struct task_group *tg = cfs_rq->tg;
s64 tg_contrib;

- tg_contrib = cfs_rq->runnable_load_avg + cfs_rq->blocked_load_avg;
+ tg_contrib = cfs_rq->runnable_load_avg;
tg_contrib -= cfs_rq->tg_load_contrib;

if (force_update || abs64(tg_contrib) > cfs_rq->tg_load_contrib / 8) {
--
1.7.5.4

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