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Processor Utilization for Hyper-V via WMI

Jul282008

Processor Utilization for Hyper-V via WMI

There are a number of groups building management software (OEMs, Microsoft, …) for Hyper-V which is cool to see.  A common ask from these teams has been around reading and computing VM CPU usage.

The following is an example of how to compute Hyper-V guest processors usage.  You can use the same formula for “% Total Run  Time, “% Hypervisor Time” and “% Idle time”.   The counters show up in the Win32_PerfRawData_HvStats_HyperVHypervisorLogicalProcessor WMI object as “PercentGuestRunTime”, “PercentTotalRunTime”, “PercentHypervisorRunTime”, and “PercentIdleTime”.

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