getAxXMLfiles.ps1

$Path = 'C:\AOSService\PackagesLocalDirectory\'
$Path = 'C:\AOSService\PackagesLocalDirectory\ApplicationSuite'
#$Path = 'C:\AOSService\PackagesLocalDirectory\ApplicationSuite\Foundation\AxForm'
#$Path = 'C:\AOSService\PackagesLocalDirectory\Currency\'
$filter = '*.xml'

# 117592 files - 21 sec
measure-command {

$d = 
    Get-ChildItem -Path $Path -Filter '*.xml' -File -Force -Recurse

}

# 117592 files - 38 sec, 4 threads
measure-command {

$d = 
    (Resolve-Path $Path).Path |
    Split-Pipeline -Refill {process{
        Get-ChildItem -LiteralPath $_ -Directory -Force | ForEach-Object { [ref]$_.FullName }
        Get-ChildItem -LiteralPath $_ -Filter '*.xml' -File -Force | ForEach-Object { $_.FullName }
    }}

}

$d.count
$d | Select-Object -First 3 | ft