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Win32_PerfRawData_PerfOS_System vbscript sample code

The foundations for Manageability in Windows is Windows Management Instrumentation (WMI; formerly WBEM) and WMI extensions for Windows Driver Model (WDM).

ActiveXperts Network Monitor provides the ability to build monitor check routines based on WMI. ActiveXperts has collected more than a hundred WMI samples. You can use these samples as a base for new check routines you can write yourself. The Win32_PerfRawData_PerfOS_System WMI class can be used in ActiveXperts Network Monitor to monitor your servers.


The Win32_PerfFormattedData_PerfOS_System "cooked" data performance counter class represents calculated counters that apply to more than one instance of a component processors on the computer. This class is shown as the System object in System Monitor. The WMI source of its data is the high-performance Cooked Counter Provider. This class derives its raw data from the corresponding raw class Win32_PerfRawData_PerfOS_System. The original data source is the PerfOS performance library. This class was added for Windows XP.

Sample Code

On Error Resume Next
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * from Win32_PerfRawData_PerfOS_System",,48)
For Each objItem in colItems
    Wscript.Echo "AlignmentFixupsPersec: " & objItem.AlignmentFixupsPersec
    Wscript.Echo "Caption: " & objItem.Caption
    Wscript.Echo "ContextSwitchesPersec: " & objItem.ContextSwitchesPersec
    Wscript.Echo "Description: " & objItem.Description
    Wscript.Echo "ExceptionDispatchesPersec: " & objItem.ExceptionDispatchesPersec
    Wscript.Echo "FileControlBytesPersec: " & objItem.FileControlBytesPersec
    Wscript.Echo "FileControlOperationsPersec: " & objItem.FileControlOperationsPersec
    Wscript.Echo "FileDataOperationsPersec: " & objItem.FileDataOperationsPersec
    Wscript.Echo "FileReadBytesPersec: " & objItem.FileReadBytesPersec
    Wscript.Echo "FileReadOperationsPersec: " & objItem.FileReadOperationsPersec
    Wscript.Echo "FileWriteBytesPersec: " & objItem.FileWriteBytesPersec
    Wscript.Echo "FileWriteOperationsPersec: " & objItem.FileWriteOperationsPersec
    Wscript.Echo "FloatingEmulationsPersec: " & objItem.FloatingEmulationsPersec
    Wscript.Echo "Frequency_Object: " & objItem.Frequency_Object
    Wscript.Echo "Frequency_PerfTime: " & objItem.Frequency_PerfTime
    Wscript.Echo "Frequency_Sys100NS: " & objItem.Frequency_Sys100NS
    Wscript.Echo "Name: " & objItem.Name
    Wscript.Echo "PercentRegistryQuotaInUse: " & objItem.PercentRegistryQuotaInUse
    Wscript.Echo "PercentRegistryQuotaInUse_Base: " & objItem.PercentRegistryQuotaInUse_Base
    Wscript.Echo "Processes: " & objItem.Processes
    Wscript.Echo "ProcessorQueueLength: " & objItem.ProcessorQueueLength
    Wscript.Echo "SystemCallsPersec: " & objItem.SystemCallsPersec
    Wscript.Echo "SystemUpTime: " & objItem.SystemUpTime
    Wscript.Echo "Threads: " & objItem.Threads
    Wscript.Echo "Timestamp_Object: " & objItem.Timestamp_Object
    Wscript.Echo "Timestamp_PerfTime: " & objItem.Timestamp_PerfTime
    Wscript.Echo "Timestamp_Sys100NS: " & objItem.Timestamp_Sys100NS