Xhprof 的配置和使用方法
Xhprof是一个分层PHP性能分析工具。
环境
- Debian + Nginx + PHP-FPM
依赖
- phpize
- 安装方法:
apt-get install phpize
下载和安装
wget http://pecl.php.net/get/xhprof-0.9.4.tgz
tar zxf xhprof-0.9.4.tgz
cd xhprof-0.9.4/extension/
sudo phpize
./configure
sudo make
sudo make install
cp xhprof.so [path_to_php_extension]/xhprof.so
配置php.ini
[xhprof]
extension=xhprof.so
xhprof.output_dir=/var/www/xhprof/xhprof_runs/
搭建Xhprof运行环境
cp -a [path_to_xhprof]/xhprof_html /var/www/xhprof/
cp -a [path_to_xhprof]/xhprof_lib /var/www/xhprof/
注入PHP代码
xhprof_enable();
/**
...
要检查的php代码
...
**/
$xhprof_data = xhprof_disable();
// 引入xhprof_lib
include_once "/var/www/xhprof/xhprof_lib/utils/xhprof_lib.php";
include_once "/var/www/xhprof/xhprof_lib/utils/xhprof_runs.php";
$instance = new XHProfRuns_Default();
$run_id = $instance->save_run($xhprof_data, "xhprof");
var_dump($run_id);
查看检查结果
- 配置Nginx
server {
listen 80;
server_name xhprof.test.com;
root /var/www/xhprof/xhprof_html;
index index.html index.php;
location ~ \.php$ {
fastcgi_pass php_pool;
fastcgi_index index.php;
include fastcgi.conf;
}
}
更优雅的方式
- 新建一个额外的文件
xhprof.inc.php,保存在/var/www/xhprof/目录下
xhprof_enable(XHPROF_FLAGS_MEMORY | XHPROF_FLAGS_CPU);
register_shutdown_function(function() {
$xhprof_data = xhprof_disable();
if (function_exists('fastcgi_finish_request')){
fastcgi_finish_request();
}
include_once "/var/www/xhprof/xhprof_lib/utils/xhprof_lib.php";
include_once "/var/www/xhprof/xhprof_lib/utils/xhprof_runs.php";
$xhprof_runs = new XHProfRuns_Default();
$run_id = $xhprof_runs->save_run($xhprof_data, 'xhprof');
echo 'save xhprof data';
});
- 利用PHP的自动加载功能,在执行代码前注入此文件,编辑php.ini
auto_prepend_file = /var/www/xhprof/xhprof.inc.php
- 重启PHP服务
