将 PerfRawData 值转换为执行数据 -WMI

Question

我需要将 PagesPersec 值从 Win32_PerfRawData_PerfOS_Memory 转换为 PerfFormatted 数据值。如何将 PerfRaw 数据值从 WMI 性能计数器转换为 PerfFormatted 数据值。是否有 Windows 推荐的标准公式。

Answer 1

您需要的公式取决于 CounterType ...参见
http://msdn.microsoft.com/en- us/library/aa392761(v=VS.85).aspx

要开始使用，请查看

Answer 2

这里回答太长了。有一篇非常好的文章，其中包含示例 http://msdn.microsoft.com/en -us/library/ms974615.aspx

简而言之：这取决于计数器类型。对于某些计数器，我可以只读取（磁盘可用空间）并需要根据两个请求进行计算，一个请求比另一个请求晚一点，例如：

strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery _
    ("Select * From Win32_PerfRawData_PerfOS_Processor Where Name = '0'")
For Each objItem in colItems
    CounterValue1 = objItem.InterruptsPerSec
    TimeValue1 = objItem.TimeStamp_PerfTime
    TimeBase = objItem.Frequency_PerfTime
Next
For i = 1 to 5
    Wscript.Sleep(1000)
    Set colItems = objWMIService.ExecQuery _
       ("Select * From Win32_PerfRawData_PerfOS_Processor Where Name = '0'")
    For Each objItem in colItems
        CounterValue2 = objItem.InterruptsPerSec
        TimeValue2 = objItem.TimeStamp_PerfTime
        If TimeValue2 - TimeValue1 = 0 Then
            Wscript.Echo "Interrupts Per Second = 0"
        Else
            intInterrupts = (CounterValue2 - CounterValue1) / _
                ( (TimeValue2 - TimeValue1) / TimeBase)
            Wscript.Echo "Interrupts Per Second = " & Int(intInterrupts)
        End if
        CounterValue1 = CounterValue2
        TimeValue1 = TimeValue2
    Next
Next