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    SubjectvolanoMark 12% regression with 2.6.25-rc6
    Comparing with 2.6.25-rc5, volanoMark has 12% regression with 2.6.25-rc6
    on my 8-core stoakley.

    Bisect tracked it down to:

    e22ecef1d2658ba54ed7d3fdb5d60829fb434c23 is first bad commit
    commit e22ecef1d2658ba54ed7d3fdb5d60829fb434c23
    Author: Ingo Molnar <>
    Date: Fri Mar 14 22:16:08 2008 +0100

    sched: fix fair sleepers

    Fair sleepers need to scale their latency target down by runqueue
    weight. Otherwise busy systems will gain ever larger sleep bonus.

    Signed-off-by: Ingo Molnar <>
    Signed-off-by: Peter Zijlstra <>

    In the patch, vruntime -= calc_delta_fair(sysctl_sched_latency, &cfs_rq->load).

    Should we call __sched_period to get the first parameter of calc_delta_fair in case
    there are more than 5 tasks in the runqueue?


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