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    SubjectRe: [GIT TREE] Unified NUMA balancing tree, v3
    On Fri, 7 Dec 2012, Ingo Molnar wrote:
    > The SPECjbb 4x JVM numbers are still very close to the
    > hard-binding results:
    >
    > Fri Dec 7 02:08:42 CET 2012
    > spec1.txt: throughput = 188667.94 SPECjbb2005 bops
    > spec2.txt: throughput = 190109.31 SPECjbb2005 bops
    > spec3.txt: throughput = 191438.13 SPECjbb2005 bops
    > spec4.txt: throughput = 192508.34 SPECjbb2005 bops
    > --------------------------
    > SUM: throughput = 762723.72 SPECjbb2005 bops
    >
    > And the same is true for !THP as well.

    I could not resist to throw all relevant trees on my own 4node machine
    and run a SPECjbb 4x JVM comparison. All results have been averaged
    over 10 runs.

    mainline: v3.7-rc8
    autonuma: mm-autonuma-v28fastr4-mels-rebase
    balancenuma: mm-balancenuma-v10r3
    numacore: Unified NUMA balancing tree, v3

    The config is based on a F16 config with CONFIG_PREEMPT_NONE=y and the
    relevant NUMA options enabled for the 4 trees.

    THP off: manual placement result: 125239

    Auto result Man/Auto Mainline/Auto Variance
    mainline : 93945 0.750 1.000 5.91%
    autonuma : 123651 0.987 1.316 5.15%
    balancenuma : 97327 0.777 1.036 5.19%
    numacore : 123009 0.982 1.309 5.73%


    THP on: manual placement result: 143170

    Auto result Auto/Manual Auto/Mainline Variance
    mainline : 104462 0.730 1.000 8.47%
    autonuma : 137363 0.959 1.315 5.81%
    balancenuma : 112183 0.784 1.074 11.58%
    numacore : 142728 0.997 1.366 2.94%

    So autonuma and numacore are basically on the same page, with a slight
    advantage for numacore in the THP enabled case. balancenuma is closer
    to mainline than to autonuma/numacore.

    Thanks,

    tglx




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