Free implementation method of website acceleration PHP buffer_PHP tutorial

Text/Xu Jiongjiong

We know that Zend has a free optimization engine for PHP, but FreeLAMP uses a buffer product called PHP Accelerator this time.

We have explained several methods of acceleration in the article "LAMP Acceleration", among which we mentioned PHP Accelerator. Its installation method is very simple, but you need to go to its website to obtain an activation key.


1. Download:

www.php-accelerator.co.uk/download.php

2. Get the activation key and install:

　www.php-accelerator.co.uk/activate.php

After registering your SERVER_NAME, you will get the following prompt:

Your key for www.freelamp.com is 8edfd13946c96309244fcca309415902

Now you must set the key for www.freelamp.com in your site configuration.

For single domains not using virtual hosts

The key can be set in the php .ini file as follows:

​ virtual host

　Add the key to the domain specific section for your web server.

　# www.freelamp.com VHost entry

　#

　

ServerName www.freelamp.com

　# ... (other vhost specific config)

　# php settings

　php_value phpa.registration_key 8edfd13946c96309244fcca309415902

　# also enable phpa if set to off in the php.ini (the default is on)

　php_value phpa 1

　
For specific phpa value settings, you can refer to the configuration of the CONFIGURATION file that comes with the software.

Since most websites are configured with virtual hosts, it is recommended to use php_value ppa.

For example:

php_value phpa.tweaks off

php_value phpa.cache_dir /tmp

php_value phpa.file_perms 400

php_value phpa .ignore_files "/index.php, /a/test.php"

　# php_value phpa.ignore_dirs "/data/WWW/site1/,/cache/"

　php_value phpa.shm_size 8

php_value phpa.shm_key 0xc0deb00

php_value phpa.shm_perms 664

3. Set php.ini

Suppose we unzip the downloaded file to /usr/local/php, then add in php.ini:

zend_extension=/usr/local/php/php_accelerator_1.2p2.so

and comment out the original Zend optimization engine:

　# zend_extension=/usr/local/Zend/lib/ZendOptimizer.so

　 Restart Apache and browse any PHP page with a browser. You can see that some phpa headers are generated below/tmp. file. Another way to check whether buffering is working is to look at the output of phpinfo(). The description part of the original Zend optimization engine has been displayed as:

　This program makes use of the Zend Scripting Language Engine:

　Zend Engine v1.1.1, Copyright (c) 1998-2001 Zend Technologies

　with the PHP Accelerator v1.2p2, Copyright (c) 2001-2002, by Nick Lindridge

It should be noted that the .so file in the INSTALL installation instructions is different from the real .so file, so you need to pay attention to this difference when installing.

4. Adjust the buffer size

PHP Accelerator provides buffer management commands:

phpa_cache_admin -mv observes the buffering status of the memory

phpa_cache_admin -fv observes files The buffering situation

phpa_cache_admin -k sets the buffer size

5. Summary

The INSTALL file provided by the software explains some things about performance, which I will not elaborate on here.

It should be noted that FreeLAMP.com’s articles are currently not PHP-based, but the forum system is PHP-based, so performance improvements will only be improvements to the forum system. (FreeLAMP: Xu Jiongjiong provided this article)




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http: //www.bkjia.com/PHPjc/315056.htmlTechArticleText/Xu Yongjiong We know that Zend has a free optimization engine for PHP, but this time FreeLAMP uses A buffering product called PHP Accelerator. We are at "LAMP ACCELERATION"...