30 Sep
2014
30 Sep
'14
9:38 a.m.
On 30 September 2014 10:41, Vincent Guittot vincent.guittot@linaro.org wrote:
Since commit caeb178c60f4 ("sched/fair: Make update_sd_pick_busiest() ...")
As someone asked me on IRC, I want to clarify that this commit is not yet in mainline but in tip/sched/core branch
sd_pick_busiest returns a group that can be neither imbalanced nor overloaded but is only more loaded than others. This change has been introduced to ensure a better load balance in system that are not overloaded but as a side effect, it can also generate useless active migration between groups.
[snip]