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    Subject[RFC PATCH v1 1/3] sched: add more levels of sched_mc
    Date
    Add few more levels to sched_mc for cpu evacuation.
    These levels will try to keep CPU cores free in order
    to reduce power consumption.

    sched_mc=3 to 5 enables cpu evacuation

    ** This is a RFC patch for discussion ***

    Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
    ---

    include/linux/sched.h | 4 ++++
    1 files changed, 4 insertions(+), 0 deletions(-)

    diff --git a/include/linux/sched.h b/include/linux/sched.h
    index b4c38bc..8b27295 100644
    --- a/include/linux/sched.h
    +++ b/include/linux/sched.h
    @@ -788,6 +788,10 @@ enum powersavings_balance_level {
    POWERSAVINGS_BALANCE_WAKEUP, /* Also bias task wakeups to semi-idle
    * cpu package for power savings
    */
    + POWERSAVINGS_INCREASE_GROUP_CAPACITY_1, /* 1*imbalalance_pct = 125% */
    + POWERSAVINGS_INCREASE_GROUP_CAPACITY_2, /* 2*imbalalance_pct = 150% */
    + POWERSAVINGS_INCREASE_GROUP_CAPACITY_3, /* 4*imbalalance_pct = 200% */
    +
    MAX_POWERSAVINGS_BALANCE_LEVELS
    };



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