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Taskmgr & CPU Utilization

Discussion in 'Windows XP' started by NoSpam@aol.com, Jul 26, 2010.

  1. NoSpam@aol.com

    NoSpam@aol.com Flightless Bird

    With my system "idle", the processes tab of Task Manager shows System Idle
    Process as using 95%-99% of the CPU time. Most of the rest is used by
    Taskmgr.exe itself.

    Yet, the Performance tab is showing approx. 50%utilization of each of the
    two CPU's. Since the CPU's are always doing something, I assumed that the
    percentage shown in the graphs was that not being used by the System Idle
    process. Apparently that is wrong?

    Can anyone explain what the graphs are showing so much CPU utilization
    while the Idle processis shown as consuming >95% of the CPU time?

    Thanks.
     

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