Xhprof 应用

<code><span>http:</span>//www<span>.xhprof</span><span>.com</span>/</code>

<code>wget http:<span>//pecl.php.net/get/xhprof-0.9.4.tgz</span>
tar zxf xhprof<span>-</span><span>0.9</span><span>.4</span><span>.</span>tgz
cd xhprof<span>-</span><span>0.9</span><span>.4</span>/extension<span>/</span>
phpize
<span>.</span>/configure <span>--</span><span>with</span><span>-php</span><span>-config</span><span>=</span>/usr/<span>local</span>/php/bin/php<span>-config</span>
make
make install</code>

<code><span># vi /usr/local/php/etc/php.ini</span></code>

<code>[xhprof]
extension=xhprof<span>.so</span><span>;</span>
xhprof<span>.output</span>_dir=/tmp/xhprof</code>

<code><span><span><?php </span>
xhprof_enable();
【PHP业务代码】
<span>$data</span> = xhprof_disable();
<span>// xhprof_lib在下载的包里存在这个目录,记得将目录包含到运行的php代码中</span><span>include_once</span><span>"xhprof_lib/utils/xhprof_lib.php"</span>;  
<span>include_once</span><span>"xhprof_lib/utils/xhprof_runs.php"</span>;  

<span>$objXhprofRun</span> = <span>new</span> XHProfRuns_Default(); 

<span>// 第一个参数j是xhprof_disable()函数返回的运行信息</span><span>// 第二个参数是自定义的命名空间字符串(任意字符串),</span><span>// 返回运行ID,用这个ID查看相关的运行结果</span><span>$run_id</span> = <span>$objXhprofRun</span>->save_run(<span>$data</span>, <span>"xhprof"</span>);
var_dump(<span>$run_id</span>);</span></span></code>

<code><span><span><?php </span><span>//cpu:XHPROF_FLAGS_CPU 内存:XHPROF_FLAGS_MEMORY，这两个都是整形常量，可以相加</span>
xhprof_enable(XHPROF_FLAGS_CPU + XHPROF_FLAGS_MEMORY);
【PHP业务代码】
<span>$data</span> = xhprof_disable();
</span></span></code>