I have used BSD::Resource in the past to do the opposite of what you want -- to limit the amount of CPU a process can hog. Usually, if i need more CPU resources ... i buy more RAM and/or a faster CPU.

Questions: What is the real problem? Are you really sure that you need more CPU resources? Are you sure that your problem can't be solved by optimizing your code instead? Can you show us the code you are working with?

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)