获取磁盘IO性能计数器

Question

我需要在特定进程运行时获取系统的页面错误和磁盘IO。

我可以获得Page Faults但无法获得磁盘IO：

 $arrayDIO = @()
 $arrayPf = @()
 $cmdProcess = start-process cmd -passthru
   while (-not $cmdProcess.HasExited) {
        $arrayDIO += %{ (Get-WmiObject Win32_PerfFormattedData_PerfProc_Process).IOWriteOperationsPerSec }
        $arrayPf += %{ (Get-WmiObject Win32_PerfFormattedData_PerfOS_memory).PageFaultsPerSec }
    sleep 2
  }
 $arrayPf | Measure-Object -Average -Maximum -Minimum | Out-File  -Filepath C:\Details.txt
 $arrayDIO | Measure-Object -Average -Maximum -Minimum | Out-File  -Filepath C:\Details.txt -append

Answer 1

使用内置命令获取性能数据，而不是 Get-WMIObject ，获取计数器：

Get-Counter '\Process(*)\IO Data Operations/sec'

Get-Counter '\Memory\Page Faults/sec'