Re: [rfc patch] sched/fair: Use instantaneous load for fork/exec balancing

Mike Galbraith
2016-06-16T03:33:34Z

On Wed, 2016-06-15 at 20:03 +0100, Dietmar Eggemann wrote:

> Isn't there a theoretical problem with the scale_load() on CONFIG_64BIT
> machines on tip/sched/core? load.weight has a higher resolution than
> runnable_load_avg (and so the values in the rq->cpu_load[] array).
> Theoretically because [forkexec|wake]_idx is 0 so [target|source]_load()
> is nothing else than weighted_cpuload().

I see a not so theoretical problem with my rfc in that I forgot to
scale_load_down() if that's what you mean.

(changes nothing, reality was just extra special unadulterated;)

-Mike