May 19, 2006

Perl Performance Improvement

Category: Programming — Raffael Marty @ 4:18 pm

I was fiddling with optimizing AfterGlow the other day and to do so, I introduced caches for some of the functions. Later a coworker (thanks Senthil) sent me a note that I could have done without implementing the cache myself by using Memoize. This is how to use it:

use Memoize;
function(arguments); # this is now much faster

This will basically cache the outputs for each of inputs to the function. Especially for recursion this is an incredible speedup.

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