On Jun 30, 2009, at 3:53 AM, fft1976 wrote:
> > On Jun 30, 12:55 am, Daniel Lyons <fus...@storytotell.org> wrote: > >> I don't see why that wouldn't be the case, if you were using Java's >> native multidimensional arrays. I don't think it would be as much >> fun, > > That's my point. It's often argued that you can just optimize the > teeny "bottleneck" by adding type declarations or rewriting in Java, > but in fact, replacing your Lisp data structures in much of your code > base with Java data structures may be necessary to match Java's speed. I don't recall hearing anyone on the list complain about this in practice and in the absence of a concrete example of a performance problem in actual code to be addressed I'm not sure what else there is to say. Usually performance problems *are* teeny bottlenecks and type declarations (or better algorithms) are usually sufficient improvement. I think if performance demands it be rewritten in Java there wouldn't be much to be gained from gutting your Clojure code of Clojure data structures, but then again, from what I know about Clojure's performance, if it's necessary to rewrite the whole app in Java for performance it's probably a better idea to rewrite in something else that doesn't run under a VM in the first place. The performance difference between Clojure and Java just isn't that great. Do you have some poorly-performing code we can take a look at? Perhaps we can find a way to improve it without such drastic measures. :) — Daniel Lyons --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
