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    SubjectRe: [PATCHSET] workqueue: reimplement CPU hotplug to keep idle workers
    Hello,

    On Fri, Jul 20, 2012 at 08:22:30PM +0200, Peter Zijlstra wrote:
    > I really think people who use hotplug at high frequencies are on drugs
    > and doing it wrong.

    I don't know. It does make some sense. It's not like we have any
    other mechanism to keep some processors completely quiesient, which
    could make a noticeable difference from powersaving POV compared to
    mostly idle. Rafael, can you please chime in and explain how / where
    / how freqeuntly / etc CPU hotplug is used for powersaving?

    Thanks.

    --
    tejun


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