[lkml]   [2012]   [Aug]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [discussion]sched: a rough proposal to enable power saving in scheduler
    On 08/16/2012 02:53 PM, preeti wrote:

    > Hi everyone,
    > From what I have understood so far,I try to summarise pin pointed
    > differences between the performance and power policies as found
    > relevant to the scheduler-load balancing mechanism.Any thoughts?

    Currently, the load_balance trigger will be called in timer for periodic
    tick, or dynamic tick.
    In periodic tick, the cpu is waked, so do load_balance is not cost much.
    But in dynamic tick. we'd better do power policy suitable scenario
    checking in nohz_kick_needed(), and then do nohz_balancer_kick on least
    but non-idle cpu if possible. that reduce the idle cpu waking chance.

    Any comments?

     \ /
      Last update: 2012-08-16 12:42    [W:0.020 / U:57.472 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site