On Fri, 8 Jan 2021 at 20:45, Peter Zijlstra <pet...@infradead.org> wrote: > > 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/20180530143105.977759...@infradead.org > > :-)
:-) I was more thinking of something like decaying avg_idle during tick_fair but at leat we all agree that we can't stay with a stalled avg_idle value
