Messages in this thread | | | Date | Fri, 8 Jan 2021 20:45:44 +0100 | From | Peter Zijlstra <> | Subject | Re: [RFC][PATCH 1/5] sched/fair: Fix select_idle_cpu()s cost accounting |
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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@infradead.org
:-)
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