On Thu, Aug 01, 2019 at 04:40:22PM +0200, Vincent Guittot wrote: > runnable load has been introduced to take into account the case > where blocked load biases the load balance decision which was selecting > underutilized group with huge blocked load whereas other groups were > overloaded. > > The load is now only used when groups are overloaded. In this case, > it's worth being conservative and taking into account the sleeping > tasks that might wakeup on the cpu.
This one scares me a little. I have the feeling I'm missing/forgetting something. Also; while the regular load-balance (find-busiest) stuff is now all aware of idle, this change also impacts wake_affine and find_idlest, and they've not changed.
