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    SubjectRe: [PATCH] maximum latency tracking infrastructure (version 3)
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    > Another question is how one would do callback processing in idle handler:
    > one could figure out the idle mode (latency) in advance and *then* call
    > only all those idle callbacks that have more stringent requirements
    > than the currently calculated idle mode's latency (and then calculate
    > the idle mode again based on the current time after all those callbacks??),
    > or one could just unconditionally call all idle handlers and then figure out
    > idle length and go to sleep. Which one is better?


    I'm not sure about either actually. Well if it's just to refill stuff
    etc then I would just call all. After all it may save interrupts and
    early wakeups if you do this, so there's a power advantage to be gained.

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