Scripts for measuring compile time

benchCompiler.php

<?php ini_set('memory_limit', -1);

if ($argc != 3) die("error\n");

$file = $argv[1];
$num = $argv[2];

$startTime = microtime(true);
for ($i = 0; $i < $num; ++$i) {
    require $file;
}
echo "Compile time: ", microtime(true) - $startTime, " seconds\n";
echo "Peak memory usage: ", memory_get_peak_usage(), " bytes\n";

files.md

The following files were used for tested, each wrapped in if (false) {} to avoid class redefinition errors.

• small (134 loc): https://github.com/nikic/PHP-Parser/blob/master/lib/PhpParser/NodeTraverser.php
• medium (750 loc): https://github.com/nikic/PHP-Parser/blob/master/lib/PhpParser/PrettyPrinter/Standard.php
• large (2768 loc): https://github.com/nikic/PHP-Parser/blob/master/lib/PhpParser/Parser.php

fullBenchCompiler.php

<?php error_reporting(E_ALL);

$dir = __DIR__ . '/../PHP-Parser/lib';

spl_autoload_register(function($class) use($dir) {
    if (strpos($class, 'PhpParser') === 0) {
        require $dir . '/' . strtr($class, '\\', '/') . '.php';
    }
});

$it = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($dir . '/PhpParser'), RecursiveIteratorIterator::LEAVES_ONLY);

$startTime = microtime(true);
foreach ($it as $file) {
    if (!$file->isFile()) continue;

    require_once $file;
}

echo "Compile time: ", microtime(true) - $startTime, " seconds\n";
echo "Peak memory usage: ", memory_get_peak_usage(), " bytes\n";