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    SubjectRe: Plumbers: Tweaking scheduler policy micro-conf RFP
    * Vincent Guittot <vincent.guittot@linaro.org> [2012-05-15 17:05:47]:

    > On 15 May 2012 15:00, Peter Zijlstra <peterz@infradead.org> wrote:
    > > On Tue, 2012-05-15 at 14:57 +0200, Vincent Guittot wrote:
    > >>
    > >> Not sure that nobody cares but it's much more that scheduler,
    > >> load_balance and sched_mc are sensible enough that it's difficult to
    > >> ensure that a modification will not break everything for someone
    > >> else.
    > >
    > > Thing is, its already broken, there's nothing else to break :-)
    > >
    >
    > sched_mc is the only power-aware knob in the current scheduler. It's
    > far from being perfect but it seems to work on some ARM platform at
    > least. You mentioned at the scheduler mini-summit that we need a
    > cleaner replacement and everybody has agreed on that point. Is anybody
    > working on it yet ? and can we discuss at Plumber's what this
    > replacement would look like ?

    Hi Vincent,

    In the earlier discussion we listed down the cleanup requirements.
    I made a cleanup patch that unifies the sysfs interface as a first
    step.

    [RFC PATCH v1 0/2] sched: unified sched_powersavings tunables
    http://thread.gmane.org/gmane.linux.kernel/1239750

    I need to make this scheme generically work on different topology,
    which is the real problem that we need to solve.

    --Vaidy



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