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    Subject2.6.25-rc1: volanoMark 45% regression
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    volanoMark has 45% regression with kernel 2.6.25-rc1 on my both 8-core
    stoakley and 16-core Tigerton.

    I used bisect to locate below patch.

    commit 58e2d4ca581167c2a079f4ee02be2f0bc52e8729
    Author: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
    Date: Fri Jan 25 21:08:00 2008 +0100

    sched: group scheduling, change how cpu load is calculated



    hackbench has about 30% regression on 16-core tigerton, but has about 10% improvement
    on 8-core stoakley.

    In addition, tbench has about 6% regression on my 8-core stoakley and
    25% regression on 16-core stoakley. Some other benchmarks, like netperf/aim7
    also have some regression. I will verify if they are all related to the
    patch.

    -yanmin




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