system.diagnostic.process刷新返回相同的过程值

Question

我有一个运行各种可执行文件的powershell脚本。有时，一个可执行文件会运行很长时间，我希望看到一些进程统计信息，表明正在取得进展(有时没有任何进展，我需要停止当前进程并重新启动)。

我正在使用system.diagnostic.process对象来启动该进程。

   $Quiet = $Process.Start()
    if ($Monitor) {
        if (-not $Timeout) { $Timeout = -1 }
        $Process.WaitForExit($Timeout)
        $LastReport = Get-Date
        while (-not $Process.HasExited ) {

            if (((Get-Date) - $LastReport).Minutes -gt 2) {
                $Process.Refresh()
                if (-not ($Process.HasExited)) {
                    Write-Host "    Physical memory usage: $($Process.WorkingSet64)"
                    Write-Host "    Base priority: $($Process.BasePriority)"
                    Write-Host "    User processor time: $($Process.UserProcessorTime)"
                    Write-Host "    Privileged processor time: $($Process.PrivilegedProcessorTime)"
                    Write-Host "    Total processor time: $($Process.TotalProcessorTime)"
                    Write-Host "    Page Memory Size: $($Process.PagedMemorySize64)"

                    if ($Process.Responding) {
                        Write-Host "  Status = Running"
                    } else {
                        Write-Host "  Status = Not Responding"
                    }
                }
                $LastReport = Get-Date
            }
        }
    }

但当我运行脚本时，我一遍又一遍地得到相同的结果：

   Physical memory usage: 8605696
    Base priority: 8
    User processor time: 00:00:00.0624004
    Privileged processor time: 00:00:00.0624004
    Total processor time: 00:00:00.1248008
    Page Memory Size: 3653632
  Status = Running
    Physical memory usage: 8605696
    Base priority: 8
    User processor time: 00:00:00.0624004
    Privileged processor time: 00:00:00.0624004
    Total processor time: 00:00:00.1248008
    Page Memory Size: 3653632
  Status = Running

我如何向我的代码添加函数，以确保进程实际上正在运行而不是停滞。

注意，这个脚本是远程运行的，我依靠返回的stdout内容来监视我的可执行文件的运行。

Answer 1

我不确定这就是答案，但现在评论太久了。

你轮询你的进程的方式不是很好。您的while循环总是在运行，消耗处理器。尽管使用两分钟的测试时间，只需使用开始-睡眠(120)即可。使用Start-Process CmdLet让你的代码接缝工作。

这可以很好地工作，只需在cmd.exe中从系统根目录启动一个dir /s来测试：

$process = Start-Process cmd.exe -PassThru
$Process.WaitForExit(1)
while (-not $Process.HasExited )
{
  Start-Sleep (3)

  Write-Host "    Physical memory usage: $($Process.WorkingSet64)"
  Write-Host "    Base priority: $($Process.BasePriority)"
  Write-Host "    User processor time: $($Process.UserProcessorTime)"
  Write-Host "    Privileged processor time: $($Process.PrivilegedProcessorTime)"
  Write-Host "    Total processor time: $($Process.TotalProcessorTime)"
  Write-Host "    Page Memory Size: $($Process.PagedMemorySize64)"

  if ($Process.Responding)
  {
    Write-Host "  Status = Running"
  }
  else
  {
    Write-Host "  Status = Not Responding"
  }
}