library package

silly/package

php performance xhprof

xhprof——PHP performance testing plugin

PHP code performance plugin, _(*1)

configuration

1. Install xhprof

Get source code, _(*2)

You can get the source code from website https://github.com/longxinH/xhprof, and install on centos 6.5(my machine)., _(*3)

cd xhprof-master/extension/
sudo /usr/bin/phpize
sudo ./configure --with-php-config=/usr/bin/php-config --enable-xhprof
sudo make && make install

Load as php extentsion, _(*4)

You will get the path of xhprof.so, for install /usr/lib64/php/modules/xhprof.so after command make install open the php.ini file by vim,, _(*5)

vim /etc/php.ini  
extension=/usr/lib64/php/modules/xhprof.so 
xhprof.output_dir=/tmp/xhprof // this config is used to analyze the xhprof data

sudo service php-fpm restart

you can use php -m | grep xhprof or phpinfo to check whether xhprof is install rightly., _(*6)

2. Config the xhprof-html for nginx visit

Config the nginx so that you can visit the xhprof data by table and graph., _(*7)

server {
    listen       13000;
    location  / { 
        root           xhprof_html directory path;
        try_files $uri $uri/ /index.php?$query_string;
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_param  SCRIPT_FILENAME   $document_root$fastcgi_script_name;
        include        fastcgi_params;
    }   
}

3. Add xhprof.so and xhprof file output to php.ini

Add xhprof.so and output destination file to php.ini, _(*8)

extension=/usr/lib64/php/modules/xhprof.so
xhprof.output_dir=/tmp/xhprof

4. How to use the plugin

Execute the command below, _(*9)

composer require silly/package dev-master

then you will find the item in composer.json below require, _(*10)

"silly/package": "dev-master"

Use the Xhprof class in your code, _(*11)

use silly\package\Xhprof;
$xf = new Xhprof();

$xh->xhprof_start();

....your code....

$data = $xh->xhprof_end();
$host = 'xxxx/index.php?run='; //the path you visit xhprof_html directory
$xf->xhprof_display($data, $host);

Then will print the url, for instance (http://your_host/index.php?run=5b0c1bf8a8875&source=xhprof), just open it in browser, it will show the data in tablelist and click the [View Full Callgraph] link, you will see the function call links. Just care about the links with yellow and red color and optimize them., _(*12)

Something useful, _(*13)

Maybe you have some problem like below., _(*14)

Error: either we can not find profile data for run_id 4d7f0bd99a12f or 
the threshold 0.01 is too small or you do not have ‘dot’ image 
generation utility installed

that's because xhprof draw the png graph, you should upgrate the dot version, just install the graphviz., _(*15)

sudo yum install -y graphviz

please make sure the version of graphviz is ok, mine is graphviz-2.26.0 and the graph can be show right., _(*16)