This patchset try to consider runnable load avg when do cpu load comparison
in load balance.

I had seen preeti's enabling before patch finished, but I still think considing
runnable load avg on rq is may a more natrual way.

BTW, I am thinking if 2 times decay for cpu_load is too complicate? one for
runnable time, another for CPU_LOAD_IDX. I think I missed the decay reason
for CPU_LOAD_IDX. Could anyone like do me favor to give some hints of this?

Best Regards!
Alex 

[RFC PATCH 1/5] sched: get rq runnable load average for load balance
[RFC PATCH 2/5] sched: update rq runnable load average in time
[RFC PATCH 3/5] sched: using runnable load avg in cpu_load and
[RFC PATCH 4/5] sched: consider runnable load average in wake_affine
[RFC PATCH 5/5] sched: revert 'Introduce temporary FAIR_GROUP_SCHED