同台服务器使用缓存APC效率高于Memcached的解决办法

这篇文章主要为大家详细介绍了同台服务器使用缓存APC效率高于Memcached的简单示例，具有一定的参考价值，可以用来参考一下。

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代码如下:

<?php 
$memcachehost = 'localhost'; 
$memcacheport = '11211'; 
function microtime_float(){ 
list($usec, $sec) = explode(" ", microtime()); 
return ((float)$usec + (float)$sec); 
} 
function runtime($t1){ 
return number_format((microtime_float() - $t1)*1000, 4).'ms'; 
} 
$starttime = microtime_float(); 
$cache_time = '30'; 
echo "init=====".runtime($starttime).'<br>'; 

$sql = "SELECT * FROM hx WHERE id = 10006"; 
$mem_sql_key = md5($sql); 

$t1 = microtime_float(); 
echo "APC_read====="; 
$arrs = apc_fetch($mem_sql_key); 
echo runtime($t1).'<br>'; 

$t1 = microtime_float(); 
apc_store($mem_sql_key.'_test', $arrs, $cache_time); 
echo "APC_write====="; 
echo runtime($t1).'<br>'; 

$t1 = microtime_float(); 
$mem = new Memcache; 
$mem->connect($memcachehost, $memcacheport); 
echo "MEM_connet=====".runtime($t1).'<br>'; 

$t1 = microtime_float(); 
$arrs = $mem->get($mem_sql_key); 
echo "MEM_read====="; 
echo runtime($t1).'<br>'; 
$t1 = microtime_float(); 
$mem->set($mem_sql_key.'_test',$arrs,0,$cache_time); 
echo "MEM_write====="; 
echo runtime($t1).'<br>'; 
?>

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