Php extension xdebug installation and System Analysis Using kcachegrind

A: Installation Method 1: Compile and install 1, download PHP XDebug extension, URL: xdebug.org # wgetpecl. php. netgetxdebug-2.1.2.tgz # tar-xzfxdebug-2.1.2.tgz # xdebug-2.1.2 # cdxdebug-2.1.2 # usrlocalphpbinphpize #. configure -- enable-

I. Installation Method 1: Compile and install 1. Download The XDebug extension of PHP. Website: http://xdebug.org/# wget http://pecl.php.net/get/xdebug-2.1.2.tgz # tar-xzf xdebug-2.1.2.tgz # xdebug-2.1.2 # cd xdebug-2.1.2 #/usr/local/php/bin/phpize #. /configure -- enable-

I. Installation

Installation Method 1: Compile and install

1. Download PHP XDebug extension, URL: http://xdebug.org/
# Wget http://pecl.php.net/get/xdebug-2.1.2.tgz
# Tar-xzf xdebug-2.1.2.tgz
# Xdebug-2.1.2
# Cd xdebug-2.1.2
#/Usr/local/php/bin/phpize
#./Configure -- enable-xdebug -- with-php-config =/usr/local/php/bin/php-config
# Make & make install

You do not need to copy xdebug. so. You can save the following.
# Cp modules/xdebug. so/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613

Note:/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/different PHP version paths are not necessarily placed in this path, you can specify xdebug in zend_extension_ts. so location.

========================================================== ==========

Installation Method 2: Automatic Installation

Http://pecl.php.net/package/xdebug

#/Usr/local/php/bin/pecl install xdebug

Installed successfully

Windows installation:

Note that you should use custom installation instructions. Put the content generated by your phpinfo to test and download the dll.

========================================================== ========

Ii. Modify the php configuration module

1. Configuration

Modify php. ini to remove the PHP acceleration module. Add the following configuration information to support XDebug extension.

Manual Installation

[Xdebug]
Zend_extension_ts = "/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/xdebug. so"

Xdebug. profiler_enable = on
Xdebug. trace_output_dir = "/tmp/xdebug"
Xdebug. profiler_output_dir = "/tmp/xdebug"

Automatic Installation

[Xdebug]

Extension = xdebug. so

Xdebug. profiler_enable = on
Xdebug. trace_output_dir = "/tmp/xdebug"
Xdebug. profiler_output_dir = "tmp/xdebug"

Configuration in Windows

Use phpinfo () to view the location of the php configuration file and add:

Extension = php_xdebug-2.2.0-5.3-vc9.dll [Xdebug]; turn on automatic tracking xdebug. auto_trace = On; Enable exception tracking xdebug. show_exception_trace = On; enable remote debugging to automatically start xdebug. remote_autostart = On; enable remote debugging xdebug. remote_enable = On; Collect variable xdebug. collect_vars = On; collect the returned value xdebug. collect_return = On; collect the xdebug parameter. collect_params = Onxdebug. remote_enable = onxdebug. remote_handler = dbgpxdebug. remote_host = 127.0.0.1xdebug.remote _ port = 9000 xdebug. profiler_enable = on; xdebug. trace_output_name = "% H. % s "xdebug. trace_output_dir = "E: \ PHPnow \ xdebug" xdebug. profiler_output_dir = "E: \ PHPnow \ xdebug"

------------------------------

2. Permission

Mkdir-p/tmp/xdebug
Chmod 755/tmp/xdebug
Chown www: www/tmp/xdebug

-----------------------------

3. Restart
/Usr/local/apache/bin/apachectl restart

NOTE: If phpinfo () is not printed, the configuration is not correct!

------------------------------

4. Disable

Note: If you do not analyze the system, you must disable xdebug. profiler. Otherwise, many files will be generated.

Xdebug. profiler_enable = off

==========================================

Iii. Analysis System

1. Access your website

Click various links on the home page several times. XDebug generates files in the/tmp/xdebug directory.

2. Use the graphic analysis tool wincachedgrind to analyze the generated file

: Http://sourceforge.net/projects/wincachegrind/files/

3. Download the executable version of the graphic tool kcachegrind in windows.

Http://sourceforge.net/projects/precompiledbin/files

Using kcachegrind, you can see more images. Note that you need to modify the PHP file path of the file executed from linux, so that you can use sourcecode.

View the code execution sequence

More complex code:

 build( MINUTE );        }                function build( $delay = 0 ) {            if ( $delay <= 0 )                return;                            while ( $delay-- > 0 ) {            }        }    }        class Capsule extends Part {        function Capsule() {          parent::Part();            $this->build( CAPSULE * MINUTE );        }    }        class Booster extends Part {        function Booster() {          parent::Part();            $this->build( BOOSTER * MINUTE );        }    }        class Stage extends Part {        function Stage() {          parent::Part();          $this->build( STAGE * MINUTE );        }    }        class SpaceShip {        var $booster;        var $capsule;         var $stages;                function SpaceShip( $numberStages = 3 ) {            $this->booster = new Booster();            $this->capsule = new Capsule();            $this->stages = array();                        while ( $numberStages-- >= 0 ) {                $stages[$numberStages] = new Stage();            }        }    }        $toys = array();    $count = PRODUCTION;        while ( $count-- >= 0  ) {      $toys[] = new SpaceShip( 2 );    }?>Toy Factory Output  Toy Production  
Built 
  
 

Analyze logs

For other usage instructions, see xdebug basic usage.

==========================================

Reference

"

Speed up, speed up, and speed up PHP applications !, Part 1: Analyze PHP applications to find, diagnose, and accelerate slow-Running code

Http://www.ibm.com/developerworks/cn/opensource/os-php-fastapps2/index.html

Http://hi.baidu.com/%D4%E7%B9%C8%C9%E7%C7%F8/blog/item/d8fedafb7843c66b024f56cb.html

Use Xdebug to track Code Execution

Http://book.51cto.com/art/200906/126516.htm

KCacheGrind replacement solution in windows

1. WinCacheGrind

It can be used to analyze the cachegrind. xxx release produced by xdebug and the kcachegrind of the easy-to-use release.

2. Windows port of kcachegrind

From the original linux kcachegrind, You can renew the version on windows. The function is the same as that of linux kcachegrind.

3. Webgrind

The online version of callgrind, with xdebug, can be used as the php script profile on the instant release.

==========================================

Configure Xdebug in NetBeans

Http://blog.csdn.net/21aspnet/article/details/6754034

==========================================

There is also a great extension:

Http://pecl.php.net/package/xhprof

Installation Reference:

Http://www.phpv5.com/blog/archives/66

Refer:

Tune squid 2.7 notes with kcachegrind

Http://blog.sunyixing.com/archives/378