We know that eaccelerator is a free and open source PHP accelerator that optimizes and dynamic content caching, can improve PHP's script caching performance, and plays an optimization role in scripts, so that your PHP program code execution efficiency can be improved by 1-10 Times, today I will teach you how to optimize caching in PHP.
2. Caching principle
When a user requests a PHP program, the PHP engine will parse the program and compile it into a specific operation code (opcode), which is a Executable code in binary format. This opcode is then executed by the PHP engine and discarded. The opcode cache will save this compiled opcode and reuse it the next time the page is called, thus saving a lot of time on repeated compilation, saving resources, and optimizing performance.
3. Install eaccelerator
Adjust Character set
#echo 'LC_ALL=C' >> /etc/profile#source /etc/profile [root@~]#tar jxf eaccelerator-0.9.6.tar.bz2[root@~]#cd eaccelerator-0.9.6 [root@~]#/usr/local/php/bin/phpize phpize是用来扩展php模块的,通过phpize可以建立php的外挂模块[root@~]#./configure --enable-eaccelerator=shared \ --with-php-config=/usr/local/php-5.3.27/bin/php-config[root@~]#make && make install [root@~]# ls /usr/local/php-5.3.27/lib/php/extensions/no-debug-zts-20090626/eaccelerator.so
4. Configure PHP to load eaccelerator
Create cache directory
mkdir /tmp/eaccelerator #The directory can be stored using tmpfs memoryFile system, SSD solid state drive
chown -R www.www /tmp/eaccelerator
Add the following content in php.ini:
eaccelerator cache config by Zhang DeJin 2017-12-1 [eaccelerator] extension = eaccelerator.so eaccelerator.shm_size="64" eaccelerator.cache_dir="/tmp/eaccelerator" eaccelerator.enable="1" eaccelerator.optimizer="1" eaccelerator.chech_mtime="1" eaccelerator.debug="0" eaccelerator.filter="" eaccelerator.shm_max="0" eaccelerator.shm_ttl="3600" eaccelerator.shm_prune_perid="3600" eaccelerator.shm_only="0" eaccelerator.compress="1" eaccelerator.compress_level="9" --End config 测试:[root@lnmp nginx]# /usr/local/php-5.3.27/bin/php -v PHP 5.3.27 (cli) (built: Nov 30 2017 05:35:00) Copyright (c) 1997-2013 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2013 Zend Technologies with eAccelerator v0.9.6, Copyright (c) 2004-2010 eAccelerator, by eAccelerat
Configuration completed
Restart httpd or php-fpm to take effect
5. Version selection
php5.3.xx available eaccelerator-0.9.6 version
php5.2.xx available eaccelerator-0.9.5.2 version
2)Xcache
1Introduction
XCache is a fast and stable PHP opcode cache. After Well tested and runs stably on high traffic/high load production machines. Tested (on linux) and supports the latest releases of all current PHP branches, such as PHP_4_3 PHP_4_4 PHP_5_0 PHP_5_1 PHP_5_2 HEAD(6.x), and supports Thread-safe/Windows. Better than similar opcode caches, such as the ability to quickly follow PHP versions. The XCache project is led by mOo, who is also a member of the development team of Lighttpd. Lighttpd is one of the fastest web server applications , and outperforms Apache and many other web servers. #
tar jxf xcache-1.3.2.tar.bz2cd xcache-1.3.2/usr/local/php-5.3.27/bin/phpize./configure --enable-xcache --with-php-config=/usr/local/php-5.3.27/bin/php-configmake && make install ls /usr/local/php-5.3.27/lib/php/extensions/no-debug-zts-20090626/
Comment the third line
cd /usr/local/php/lib/
echo >> php.ini echo "xcache config by ZhangDejin 2017-12-1"
zend_extension = /usr/local/lib/php/extensions/non-debug-non-zts-xxx/xcache.so
zend_extension_ts = c:/php/extensions/php_xcache.dll
;extension = xcache.so
1. Introduction
Cache system
. By maintaining a unified huge hash table in the memory, it can be used to store data in various formats, including Images, video files and the results of database retrieval, simply put, call the data into the memory and then read it from the memory, thus greatly improving the reading speedPDO extension defines a database for PHP access A lightweight, consistent interface that provides a data access abstraction layer so that no matter what database is used, you can execute queries to obtain data through consistent functionsImageMagick is a powerful and stable set of Moreover, the free working set and development kit can change the size, rotate, sharpen, reduce color, etc. of image types in more than 89 formats. Now its main focus is on performance, reducing bugs and providing stable API and ABI. Upcat /home/king/xcache-1.3.2/xcache.ini >> php.ini
nginx -V
View httpd compilation parameterscat httpd/build/config.nice
View mysql Compilation parametersgrep "CONFIGURE_LINE" mysql/bin/mysqlbug
php Compilation parametersphp/bin/php -i|grep configure
Complete
I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!
Related reading:
Answers to questions about camel case naming and JS
## Summary of the front-end js framework and explanation of its uses
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