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    SubjectRe: [PATCH v5] sched: Avoid unnecessary work in reweight_entity
    On Sat, 2012-02-18 at 09:43 +0800, Michael Wang wrote:
    > And as reight_entity is invoked very often, I think this patch can do some help to the
    > performance, although there are no numbers, we can prove it logically :)

    Well, you're probably right (although I think you completely ignored the
    optimizing compiler), but still it would be good to get some numbers to
    confirm reality :-)

    Just pick your favourite cgroup workload/benchmark and run a pre/post
    comparison, possible using perf record.

    If all squares up you should see an improvement in your benchmark score
    as well as see a reduction in time spend in the function you're

     \ /
      Last update: 2012-02-20 14:11    [W:0.019 / U:0.024 seconds]
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