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    SubjectRe: [PATCH] x86,sched: Fix sched_smt_power_savings totally broken

    > Youquan, As far as I know both the
    > sched_smt_power_savings/sched_mc_power_savings are broken for atleast an
    > year.
    > Have you checked the state of 'sched_mc_power_savings' to see if it is
    > working or gets addressed with your proposed patches?
    Thanks Suresh!

    We have verified that sched_mc_power_savings works well in mainline and
    -tip tree, only sched_smt_power_savings broken.

    Sorry. My proposed patch last night still need be refreshed. After I closely look
    at SD_PREFER_SIBLING logic, there is possible a fighting which Peter has
    mentioned it.

    I will post a update patch soon.


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