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    SubjectRe: [PATCH v3 00/18] periodic write-back timer optimization
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    Artem Bityutskiy <Artem.Bityutskiy@nokia.com> writes:

    >
    > The patches attempt to optimize the periodic write-back and stop it when
    > there are no dirty data. IOW, we do not want the thread to wake up every
    > 5 seconds (by default), find there is nothing to do, and so on.

    Is waking up every 5 seconds really a problem?

    The normal rule of thumb is iirc that longer sleep times than a few hundred
    ms give dimishing returns in terms of power saving.

    A simple way might be simple to batch the timer better with other timers.

    -Andi


    --
    ak@linux.intel.com -- Speaking for myself only.


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