Compare PowerShell collection filtering performance

CollectionFilteringPerformance.ps1

$N = 1000

$services = Get-Service
 
# 1.Powershell v2 'where' filtering syntax
$sw = [Diagnostics.Stopwatch]::StartNew()
foreach ($i in 1..$N)
{
    $services | where { $_.Status -eq 'Running' } > $null
}
$sw.Stop()
Write-Host ("1: Elapsed {0} [ms]" -f $sw.ElapsedMilliseconds)
 
# 2. PowerShell v3 simplified 'where' filtering syntax
$sw = [Diagnostics.Stopwatch]::StartNew()
foreach ($i in 1..$N)
{
    $services | where Status -eq 'Running' > $null
}
$sw.Stop()
Write-Host ("2: Elapsed {0} [ms]" -f $sw.ElapsedMilliseconds)
 
 
# 3. PowerShell v4 where extension method like syntax
$sw = [Diagnostics.Stopwatch]::StartNew()
foreach ($i in 1..$N)
{
    $services.Where({ $_.Status -eq 'Running' }) > $null
}
$sw.Stop()
Write-Host ("3:Elapsed {0} [ms]" -f $sw.ElapsedMilliseconds)