"system" process CPU usage is high in Vista SP1(passthru)

Discussion in 'Windows Vista Drivers' started by lgonhia, Aug 18, 2009.

  1. lgonhia

    lgonhia Guest

    "system" process CPU usage is high when ndis passthru installed with virtual
    pc 2007 and MS Network Monitor 3.2 in windows Vista SP1(32 bit).
    When idle,the average CPU usage of "system" is 25%-30%.(Watched by perfmon)

    after unintalll passthru
    When idle,the average CPU usage of "system" is bellow 10%.(Watched by perfmon)
     
    lgonhia, Aug 18, 2009
    #1
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  2. NDIS 5 passthru?

    Surely it will have major perf bottleneck on Vista+, since Vista+ use NDIS 6, and NDIS 5 passthru will require NDIS6->NDIS5 wrappers, which eat the performance.
     
    Maxim S. Shatskih, Aug 18, 2009
    #2
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  3. lgonhia

    lgonhia Guest

    Thanks for your answer.
    Yes.
    It is NDIS 5 passthru.
    But the system is idle.
    There is nearly no packets.
     
    lgonhia, Aug 19, 2009
    #3
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