XCache

XCache is an open-source opcode cacher, which means that it accelerates the performance of PHP on servers. It optimizes performance by removing the compilation time of PHP scripts by caching the compiled state of PHP scripts into the shm (RAM) and uses the compiled version straight from the RAM. 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 serverload. Enabling XCache will cause the sites to load faster.

Enabling XCache in cPanel servers:

Use EasyApache to enable XCache in cPanel servers.

Installing from source:

1) Download source file from http://xcache.lighttpd.net/pub/Releases/ .

# wget http://xcache.lighttpd.net/pub/Releases/2.0.1/xcache-2.0.1.tar.gz

2) Extracting file.

# tar -zxvf xcache-2.0.1.tar.gz

3) change directory to xcache-2.0.1

# cd xcache-2.0.1
# phpize
# ./configure –enable-xcache
# make
# make install

Now edit php.ini and add following extension.

extension=xcache.so

Restart apache and you will see XCache enabled.