Howtoforge posted a guide about installing XCache for PHP5 under Debian Etch and Apache2

This guide explains how to integrate XCache into PHP5 on a Debian Etch system (with Apache2). From the XCache project page: "XCache is a fast, stable PHP opcode cacher that has been tested and is now running on production servers under high load." It's similar to other PHP opcode cachers, such as eAccelerator and APC.

Integrating XCache Into PHP5 (Debian Etch & Apache2)