Possible Duplicate:
PHP Profiler with method execution count, times etc. without extensions
所以，我不能使用xDebug或其他需要安装PECL扩展的东西，我只能访问FTP，所以我需要对我使用的函数进行一些测试，这是CodeIgniter的一个操作。
所以我用检查器查看了chrome，发现该页面的响应时间只有后端（该操作中使用的PHP函数）的22秒，没有DOM的东西。
有人知道一个好的工具吗？看看是什么导致负载如此巨大。
如果没有实际的调试工具，echo可能是您唯一的调试工具。您可以在站点入口点的开头添加$start_time=microtime（true），并且可以在代码的不同位置打印或记录microtime（true）-$start_time
从文档
$this->benchmark->mark( code_start );
// Some code happens here
$this->benchmark->mark( code_end );
echo $this->benchmark->elapsed_time( code_start , code_end );
然而，这并不能告诉你为什么你的模型/控制器加载缓慢，但你可以封装任何请求来缩短有问题的加载时间。IE：你对一个模型进行基准测试，并意识到这是4个查询。
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