In this tutorial we’ll install the Debian Linux 9 (squeeze), Apache 2 with mpm-itk (to run each web as a isolated user),...
Install XCache
Ástþór IPXCache is a fast, stable PHP opcode cacher that has been tested and is now running on production servers under high load. It overcomes a lot of problems that has been with other competing opcachers such as being able to be used with new PHP versions.
1. Installing the XCache package
apt-get install php5-xcache
2. Restart Apache
/etc/init.d/apache2 restart
That’s it. XCache is now installed.