Using XHPROF to analyze PHP performance bottlenecks (ii)

In the previous article, we showed you how to analyze PHP performance based on the xhprof extension, log in to the logs, and finally use the Xhprof extended UI to show up on the web. This article covers 2 points of knowledge:

• Use Xhgui instead of Xhprof's default UI interface for easier analysis
• Replacing xhprof extensions with tideways extensions

Use the more beautiful Ui:xhgui

Xhgui supports Xhprof, Uprofiler, or tideways extensions, that is, just one of these extensions is installed.

In this test, the actual use of the tideways extension (switch to xhprof extension after the web does not see the data, the reason is unknown. Switching to Uprofiler also has no data. ）。

Xhprof Although from Facebook but has not been updated for a long time, the official source has shown this package is abandoned and no longer maintained (the packet is obsolete, no longer maintained). Tideways on the contrary, has been a commercial company in the maintenance, and actively support the PHP7. Two extensions are open source, in summary I suggest you choose Tideways to analyze the code.

To install the tideways extension:

wget https://github.com/tideways/php-xhprof-extension/archive/v4.1.5.tar.gz -O php-xhprof-extension-4.1.5.tar.gztarcdphpize  ./configuremake&&make

Installing Xhgui

cd  /work/git clone https://github.com/perftools/xhgui.git xhgui

If you need to install the Chinese language interface, you can:

git clone https://github.com/laynefyc/xhgui-branch.git  xhgui

Then install Xhgui dependencies:

cd xhguiphp install.php

Wait a few minutes for the installation, please be patient.

Set permissions on the cache directory to allow Nginx to create files:

chmod -R 777

Xhgui has already written the injected entry file, which is located external/header.php , without the need for us to manually write an injection file similar to the one in the previous article xhprof.inc.php .

Installing MongoDB and clients

Xhgui writes the logs to MongoDB, so using Xhgui requires the MongoDB server to be installed. The installation and start of the MongoDB service-side process is omitted here.

To improve MongoDB performance, you can run the following command to add an index:

/usr/local/mongodb/bin/mongo>use xhprofdb.results.ensureIndex'meta.SERVER.REQUEST_TIME' : -1 } )  db.results.ensureIndex'profile.main().wt' : -1 } )  db.results.ensureIndex'profile.main().mu' : -1 } )  db.results.ensureIndex'profile.main().cpu' : -1 } )  db.results.ensureIndex'meta.url' : 1 } )  

Similarly, because Xhgui is written in PHP, you also need to read the data in MongoDB and need to install the MongoDB PHP client:

pecl install mongodb

Then add the configuration in the php.ini file:

[mongo]extension=mongo.so

To see if the extension was installed successfully:

php|grep mongo

Then restart the PHP-FPM service.

Configure Xhgui

The config directory for Xhgui has a config.default.php, copied to config.php , if the MongoDB address is not the default, modify:

    'db.host''mongodb://127.0.0.1:27017',

There are also changes to the sampling frequency, the default is 1/100, the test is changed to true:

    'profiler.enable'function() {        //return rand(1, 100) === 42;        returntrue;    },

Configure Project Injection

In the previous article, we introduced that the injected entry file can be written to php.ini or Nginx, I suggest to write in Nginx configuration, this will only affect the nginx corresponding project, not all the projects that use the PHP environment. The portal file uses Xhgui's own injected files:

Jifen.cc.conf

location ~ \.php$ {    fastcgi_pass   127.0.0.1:9000;    fastcgi_index  index.php;    fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;    fastcgi_param PHP_VALUE "auto_prepend_file=/work/xhgui/external/header.php";    include        fastcgi_params;}

Configure Xhgui Web

We modified xhprof.test.com.conf to:

server {    listen       80;    server_name  xhprof.test.com;    #root /work/xhprof/xhprof_html;    root /work/xhgui/webroot/;    index index.php index.html;        location / {       if (!-e $request_filename) {            rewrite . /index.php last;        }    }    location ~ \.php$ {                fastcgi_pass   127.0.0.1:9000;        fastcgi_index  index.php;        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;        include        fastcgi_params;    }    }

Restart the Nginx service.

We request the interface of the application several times, open the browser input http://xhprof.test.com/, can see:

Click on a request to go to see the details:

Reference

1, PHP performance tracking and analysis tools Xhprof installation and use-Ma Sing's technical blog-Segmentfault think No
1190000007288664#articleheader4
2, Tideways and Xhgui build php non-intrusive monitoring platform | I'm a big bear.
http://blog.it2048.cn/article-tideways-xhgui/

Using XHPROF to analyze PHP performance bottlenecks (ii)