Created
February 1, 2012 21:00
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comparing speed of fetching single elements from apc vs. accessing an array
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<pre> | |
<?php | |
error_reporting(E_ALL | E_STRICT); | |
ini_set('display_errors', 'On'); | |
if (!isset($_GET['num'])) { | |
die('you forgot a parameter'); | |
} | |
echo 'Doing ' . $_GET['num'] . ' entries' . PHP_EOL . PHP_EOL; | |
$map = array(); | |
$data = '<?php return array( '; | |
for ($i = 1; $i < $_GET['num']; $i++) | |
{ | |
$map[md5($i)] = sha1($i); | |
apc_add(md5($i), sha1($i)); | |
$data .= " '". md5($i) . "' => '" . sha1($i) . "',"; | |
} | |
$data .= ');'; | |
file_put_contents('map.' . $_GET['num'] . '.php', $data); | |
unset($data); | |
$info = apc_sma_info(); | |
echo 'APC used: ' . number_format((($info['seg_size'] - $info['avail_mem'] )/(1024*1024)),1); | |
echo '/' . number_format(($info['seg_size'] /(1024*1024)),1) . PHP_EOL . PHP_EOL; | |
$time = microtime(true); | |
foreach ($map as $key => $value) | |
{ | |
$fetchedValue = apc_fetch($key); | |
} | |
$apctime = (microtime(true) - $time); | |
echo 'time apc: '.number_format($apctime, 10).PHP_EOL; | |
$time = microtime(true); | |
$map2 = include __DIR__ . '/map.' . $_GET['num'] . '.php'; | |
foreach ($map as $key => $value) | |
{ | |
$fetchedValue = $map2[$key]; | |
} | |
$arraytime = (microtime(true) - $time); | |
echo 'time array: '.number_format($arraytime,10).PHP_EOL; | |
if ($arraytime < $apctime) | |
{ | |
echo PHP_EOL.PHP_EOL.'array is faster'; | |
} | |
else | |
{ | |
echo PHP_EOL.PHP_EOL.'apc is faster'; | |
} | |
?> | |
</pre> |
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