Re: [patch v3 0/8] sched: use runnable avg in load balance

[Alex Shi]

On 04/03/2013 02:22 PM, Michael Wang wrote:
>> > 
>> > If many tasks sleep long time, their runnable load are zero. And if they
>> > are waked up bursty, too light runnable load causes big imbalance among
>> > CPU. So such benchmark, like aim9 drop 5~7%.
>> > 
>> > With this patch the losing is covered, and even is slight better.
> A fast test show the improvement disappear and the regression back
> again...after applied this one as the 8th patch, it doesn't works.

It always is good for on benchmark and bad for another. :)

the following patch include the renamed knob, and you can tune it under 
/proc/sys/kernel/... to see detailed impact degree.