Downloads and unzips OctaneBench, then runs 3 benchmarks and returns the average score

Get-OctaneBenchScore.ps1

function Get-OctaneBenchScore {
    $source = "https://render.otoy.com/downloads/a/787/7e324f5a-3598-41b2-9b07-3fbf678163af/OctaneBench_4_00c_win.zip"
    $out = "C:\OctaneBench4.zip"
    $obfolder = "C:\octanebench\"
    $obpath = Join-Path $obfolder "OctaneBench_4_00c_win\octane-cli.exe"
    $log = Join-Path $obfolder "log.txt"

    if(-not (Test-Path $obpath)) {
        # Download
        Invoke-WebRequest -Uri $source -OutFile $out

        # Unpack
        Add-Type -AssemblyName System.IO.Compression.FileSystem
        [System.IO.Compression.ZipFile]::ExtractToDirectory($out, $obfolder)
    }

    # Run OctaneBench
    Start-Process -FilePath $obpath -ArgumentList "-a $log" -Wait

    # Return score
    ([regex]"Total score:.*`n(\d*`.{1}\d*)").Matches((Get-Content $log -raw)).groups[1].Value
}

# Run once
# Get-OctaneBenchScore

# Average of 3
1..3 | Foreach-Object { Get-OctaneBenchScore } | Measure-Object -Average