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    SubjectRe: [PATCH v5] sched: Avoid unnecessary work in reweight_entity
    * Michael Wang <wangyun@linux.vnet.ibm.com> [2012-02-27 13:07:28]:

    > > Is that benchmark run in root (cpu) cgroup? If so, reweight_entity() should not
    > > kick in at all.
    >
    >
    > That's right, if no children group, 'reweight_entity' won't be called, so I have
    > created a cpuset group under root group named 'rg1', and created a memory group
    > under 'rg1' named 'sub', I attached the current shell to the 'sub' cgroup.

    'cpu' and 'cpuset' cgroup resource controllers are separate. By above
    steps, you would still be running kern-bench in root cgroup as far as cpu
    cgroup controller is concerned ..

    - vatsa



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