I've done some searching around but can't find anything definitive on this subject.
I have XCache opcode installed on my dedicated server but I'm confused as to what caches I should use with the Opcode.
What is the best options for:
Database (Should this even be caching? It says it will decrease the response time of my site)
In other words, is there a reason why I should select a caching option for each of these OTHER than XCache?