The obvious lazy-caveman's solution would be to simply take the data that you write to the hard disk(flatten the hash )and write it to a variable :->, I bet that you could access it with regexes very fast! But...since it looks like youre not having a caveman situation:

From your example it looks like you use numbers quite a bit and hashes are just horrible for numbers, I suggest you use more arrays. And make sure that you dont have unneccessary variable names (the names themselves do take up a lot of space...) I also agree 100% with runrig.