Messages in this thread | | | From | "Rafael J. Wysocki" <> | Date | Thu, 21 Feb 2019 17:18:25 +0100 | Subject | Re: [PATCH] cpuidle: Add a predict callback for the governors |
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On Thu, Feb 21, 2019 at 3:56 PM Daniel Lezcano <daniel.lezcano@linaro.org> wrote: > > Predicting the next event on the current CPU is implemented in the > idle state selection function, thus the selection logic and the > prediction are tied together and it is hard to decorrelate both. > > The following change introduces the cpuidle function to give the > opportunity to the governor to store the guess estimate of the > different source of wakeup and then reuse them in the selection > process. Consequently we end up with two separate operations clearly > identified. > > As the next events are stored in the cpuidle device structure it is > easy to propagate them in the different governor callbacks.
Can you explain a bit how you would use this new callback in a governor?
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