[NiteWave]

I think it has something to do with the number of processes in some way from what I read on the xcache website in the faq section

maybe you refer:
http://xcache.lighttpd.net/wiki/Faq#...hebeingcleared

then how many litespeed processes are running on your server?
#pstree -p | grep litespeed

what you observed is just the reason why on shared hosting environment, only eAccelerator is recommended. all php processes can share the opcode cache under a single disk folder, like /tmp/eaccelerator. usually, php suExec is enabled in such environment. APC and XCache only keep opcode cache in memory. so each group of php processes will have its own cache.