FastRoute benchmark is not precise...?

[tsvetelintsonev]

Hi there. First of all thanks for the benchmark. I was impressed by good performance of FastRoute and decided to look at worst-case-tests.php
I have played with it a bit and thought that it will be good idea to measure the time it takes by FastRoute to find a given route directly inside "setupFastRoute" function.

-----This is changes that I've made -----

function setupFastRoute(Benchmark $benchmark, $routes, $args)
{
$argString = implode('/', array_map(function ($i) { return "{arg$i}"; }, range(1, $args)));
$str = $firstStr = $lastStr = '';
$router = \FastRoute\simpleDispatcher(function ($router) use ($routes, $argString, &$lastStr) {
for ($i = 0; $i < $routes; $i++) {
list ($pre, $post) = getRandomParts();
$str = '/' . $pre . '/' . $argString . '/' . $post;
if (0 === $i) {
$firstStr = str_replace(array('{', '}'), '', $str);
}
$lastStr = str_replace(array('{', '}'), '', $str);
$router->addRoute('GET', $str, 'handler' . $i);
}
});
$start = microtime(true);
$route = $router->dispatch('GET', $lastStr);
echo microtime(true) - $start ;
}

and I am getting a surprisingly slow result of 0.0069520473480225
Do you think that something is wrong with FastRoute's benchmark?