[HowTo] Install XCache For PHP5 In CentOS
Monday February 14, 2011 by Ivan Kristianto
Instead using Alternative PHP cache (APC), we can use PHP XCache for PHP caching system. XCache is an open-source opcode cacher, to accelerates PHP performance on servers. It optimize performance by removing the compilation time of PHP scripts with caching the compiled state of PHP scripts into the shm (RAM) or memory and uses the compiled version straight from the RAM or memory. This will increase the rate of page generation time by up to 5 times as it also optimizes many other aspects of php scripts and reduce server load.
To install PHP XCache on Linux, especially CentOS, follow the steps below:
1. Download XCache:
wget http://xcache.lighttpd.net/pub/Releases/1.2.1/xcache-1.2.1.tar.gz
2. Extract it:
tar -zxvf xcache-1.2.1.tar.gz cd xcache-1.2.1
3. Compile and install XCache:
phpize ./configure --enable-xcache make make install
4. Configure php.ini to include XCache:
[xcache-common] zend_extension = /usr/lib/php/modules/xcache.so ; For 64bit version => /usr/lib64/php/modules/xcache.so [xcache.admin] xcache.admin.auth = On xcache.admin.user = "mOo" ; xcache.admin.pass = md5($your_password) xcache.admin.pass = "" [xcache] xcache.shm_scheme = "mmap" xcache.size = 32M xcache.count = 1 xcache.slots = 8K xcache.ttl = 3600 xcache.gc_interval = 300 ; Same as aboves but for variable cache ; If you don't know for sure that you need this, you probably don't xcache.var_size = 0M xcache.var_count = 1 xcache.var_slots = 8K xcache.var_ttl = 0 xcache.var_maxttl = 0 xcache.var_gc_interval = 300 ; N/A for /dev/zero xcache.readonly_protection = Off xcache.mmap_path = "/dev/zero" xcache.cacher = On xcache.stat = On
5. Restart Apache:
/etc/init.d/httpd restart
6. Check it in PHP info.
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Article by Ivan Kristianto
Ivan Kristianto is a profesional web developer and blogger. Very interest with free and open source software. Follow my Twitter: @ivankrisdotcom or Facebook profile IvanKristiantoBlog or Email me at ivan@ivankristianto.com
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