Re: [RFC][PATCH 1/5] sched/fair: Fix select_idle_cpu()s cost accounting

[Peter Zijlstra]

On Fri, Jan 08, 2021 at 04:10:51PM +0100, Vincent Guittot wrote:
> Also, there is another problem (that I'm investigating)  which is that
> this_rq()->avg_idle is stalled when your cpu is busy. Which means that
> this avg_idle can just be a very old and meaningless value. I think
> that we should decay it periodically to reflect there is less and less

https://lkml.kernel.org/r/20180530143105.977759909@xxxxxxxxxxxxx

:-)