Contraproff empty pipelines

gistfile1.ps1

Function Init {
    $File = "$env:tmp\testfile.tmp"
    if(-Not (Test-Path -Path $File)){[Void](New-Item -Path $File -Type File)}
    Start-Service -Name Spooler
}

Function Validate {
    $File = "$env:tmp\testfile.tmp"
    $FileStatus = if(Test-Path -Path $File){'Exists'}else{'Removed'}
    $SrvStatus = (Get-Service -Name Spooler).Status
    '{0,-7} {1}'-f $FileStatus, $SrvStatus
}

Function Measureit {
    $File = "$env:tmp\testfile.tmp"
    Init
    $m1 = (Measure-Command -Expression { 
        Stop-Service -Name Spooler -Force |
        Remove-Item $File | 
        Start-Service -Name Spooler
    }).milliseconds

    $r1 = Validate

    $m2 = (Measure-Command -Expression { 
        Stop-Service -Name Spooler -Force
        Remove-Item $File
        Start-Service -Name Spooler
    }).Milliseconds 

    $r2 = Validate

    "Time:{0,-4}Result: {1,-17} |  Time:{2,-4}Result: {3,-20}" -f $m1, $r1, $m2, $r2
}

1..20 | %{measureit}

Results in the following:
Time:5 Result: Exists Stopped | Time:286 Result: Removed Running
Time:5 Result: Exists Stopped | Time:288 Result: Removed Running
Time:5 Result: Exists Stopped | Time:280 Result: Removed Running
Time:4 Result: Exists Stopped | Time:290 Result: Removed Running
Time:4 Result: Exists Stopped | Time:290 Result: Removed Running
Time:4 Result: Exists Stopped | Time:290 Result: Removed Running
Time:6 Result: Exists Stopped | Time:305 Result: Removed Running
Time:4 Result: Exists Stopped | Time:289 Result: Removed Running
Time:5 Result: Exists Stopped | Time:290 Result: Removed Running
Time:4 Result: Exists Stopped | Time:281 Result: Removed Running
Time:4 Result: Exists Stopped | Time:290 Result: Removed Running
Time:5 Result: Exists Stopped | Time:280 Result: Removed Running
Time:4 Result: Exists Stopped | Time:291 Result: Removed Running
Time:4 Result: Exists Stopped | Time:291 Result: Removed Running
Time:4 Result: Exists Stopped | Time:291 Result: Removed Running
Time:5 Result: Exists Stopped | Time:287 Result: Removed Running
Time:4 Result: Exists Stopped | Time:295 Result: Removed Running
Time:4 Result: Exists Stopped | Time:290 Result: Removed Running
Time:4 Result: Exists Stopped | Time:294 Result: Removed Running
Time:5 Result: Exists Stopped | Time:290 Result: Removed Running