PowerShell function to measure time execution of a program

Measure-Time.ps1

function global:Measure-Time
{
    [CmdletBinding()]
    param ([string] $Command,
      [string] $Arguments = "",
      [switch] $Silent = $false
    )

    $creation = 0
    $exit = 0
    $kernel = 0
    $user = 0
    $fileName="$(pwd)\$Command"
    if(!(Test-Path $fileName)) {
      $fileName = $Command
      if(!(Test-Path $fileName)) {
        Write-Error "$Command not found"
        return
      }
    }
    $psi = new-object diagnostics.ProcessStartInfo
    $psi.CreateNoWindow = $true
    $psi.RedirectStandardOutput = $true
    $psi.WorkingDirectory = (pwd)
    $psi.FileName = "$fileName"
    $psi.Arguments = "$Arguments"
    $psi.UseShellExecute = $false

    $proc = [diagnostics.process]::start($psi)
    $proc.WaitForExit()

    $buffer = $proc.StandardOutput.ReadToEnd()    

    if (!$Silent)
    {
        Write-Output $buffer
    }

    $kernelTime = $proc.PrivilegedProcessorTime
    $userTime = $proc.UserProcessorTime
    $elapsed = $proc.ExitTime - $proc.StartTime
    $CPU = $proc.CPU
    $CoreCost = (($userTime + $kernelTime) / $elapsed) * 100.0

    Write-Output "Kernel time : $kernelTime"
    Write-Output "User time   : $userTime"
    Write-Output "Elapsed     : $elapsed"
    Write-Output "CPU         : $CPU %"
    Write-Output "Core cost   : $CoreCost %"
}

Usage

First install the global function on your shell:

./Measure-Time.ps1

Now you can use like this:

Measure-Time solve.exe

The output will be the output of the program and the statistics after the program ends:

   CROSS  :   96233
+  ROADS  :+  62513
 -------  : -------
  DANGER  :  158746


Kernel time : 00:00:00
User time   : 00:00:00.1406250
Elapsed     : 00:00:00.1546632
CPU         : 0.140625 %
Core cost   : 90.9233741445929 %

Using with a program that you must pass arguments is like this:

Measure-Time async-tests.exe -Arguments '100 10'

Output:

Starting thread: 1
Starting thread: 2
Starting thread: 3
Starting thread: 4
Starting thread: 5
Starting thread: 6
Starting thread: 7
Starting thread: 8
Starting thread: 9
Starting thread: 10
Result for thread 1: 4
Result for thread 2: 7
Result for thread 3: 4
Result for thread 4: 4
Result for thread 5: 6
Result for thread 6: 4
Result for thread 7: 11
Result for thread 8: 3
Result for thread 9: 6
Result for thread 10: 7
Ending...

Kernel time : 00:00:00.0156250
User time   : 00:00:48.6093750
Elapsed     : 00:00:07.9634306
CPU         : 48.625 %
Core cost   : 610.603676259827 %