def METHOD_NAME(spawn, sleep, options):
    all_times = [
        _test(spawn, sleep, options)
        for _ in xrange(options.loops)
    ]
    spawn_duration = sum(x.spawn_duration for x in all_times)
    sleep_duration = sum(x.sleep_duration for x in all_times)
    join_duration = sum(x.sleep_duration for x in all_times
                        if x != -1)
    return Times(spawn_duration, sleep_duration, join_duration)