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HomeBackend DevelopmentPHP TutorialCentOS使用yum安装php性能测试工具xhprof

1.首先我们安装xhprof:

yum install xhprof


2.安装好之后,找到xhprof的配置文件xhprof.conf,一般会在/etc/php.d里面,加入这2行:

extension=xhprof.soxhprof.output_dir=<directory_for_storing_xhprof_runs>

该路径是指把生成的数据放到哪的文件夹,例如放在/var/www/html/xhprof_data


3.如果要图形话,需要安装dot(可选):

yum install graphviz


4.安装好之后重启一下服务器:

service httpd restart


5.使用的话只要包含以下文件代码即可:

#在php的头部加上,可以设置记录频率,比如记录万分之一xhprof_enable(XHPROF_FLAGS_CPU + XHPROF_FLAGS_MEMORY);
#在代码页的底部加上if ($xhprof_flag) {    $xhprof_data = xhprof_disable();    include_once "./xhprof_lib/utils/xhprof_lib.php";    include_once "./xhprof_lib/utils/xhprof_runs.php";    $xhprof_runs = new XHProfRuns_Default();    $xhprof_runs->save_run($xhprof_data, 'xhprof',"index_".time());}

上面的xhprof_lib,php和xhprof_runs.php这2个文件的路径要改成自己的路径,千万不要写错,如果找不到这两个文件,可以使用指令 whereis xhprof 该指令会把xhprof相关的路径都罗列出来,你可以一一查询。?


6.把xhprof_html文件夹拷贝到你的web服务器根目录下,用来访问那些生成的文件;当有该php的访问时,会在目录下生成类似index_1277956324.xhprof的记录文件,使用类似 http://www.url.com/xhprof_html/index.php?run=index_1277956324,就可以看到结果。也可以http://www.url.com/xhprof_html/index.php访问文件目录,然后选择任意一个进行查看。

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