One man (I believe he contributed to this thread) has kind of volunteered to build an interface between IPC::MMA and one of the caching modules. Although I may have forgotten to get back to him and encourage him to do this.

As to performance, hopefully someone can do some benchmarking. The binary-search-based "hash" used in this module will hopefully beat a linked-list-based hash for larger numbers of key-value pairs. Don't know the exact cutover but maybe about 1000 entries?

Thanks for your interest,
cmac