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CPU loading has high change rate when run CPU test

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  • CPU loading has high change rate when run CPU test

    Hi,

    I run Burn-in Test V8.1 in my systems, as follows
    CPU:
    Intel 6th Gen Skylake CPU
    C7: i7-6822EQ, Quad-core, up to 2.8GHz (HD-530)
    C5: i5-6442EQ, Quad-core, up to 2.7GHz (HD-530)
    C1: Celeron G3902E, Dual-core, up to 1.6GHz (HD-510)
    PCH:
    Intel® QM170

    I use default CPU test item with 80% duty cycle, the CPU loading runs from 40% to 90%.
    But when I only select "General purpose instructions", CPU loading keep to run on 90%

    Click image for larger version

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    Why the CPU loading has big difference between two tests?
    Does anyone have the same experience?
    Thanks.

  • #2
    We never really made any attempt to exactly match the CPU load from each sub-test in the CPU suite. It would change slightly for each CPU model in any case.

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