Re: [RFC PATCH v1 00/11] Create fast idle path for short idle periods
From: Arjan van de Ven
Date: Mon Jul 17 2017 - 15:28:06 EST
On 7/17/2017 12:23 PM, Peter Zijlstra wrote:
Now I think the problem is that the current predictor goes for an
average idle duration. This means that we, on average, get it wrong 50%
of the time. For performance that's bad.
that's not really what it does; it looks at next tick
and then discounts that based on history;
(with different discounts for different order of magnitude)