I haven't tried the code, so caveat emptor: If you convert partition to a macro *AND* use type-hints, I suspect you'll see a win. The issue here is the primitive boxing that must occur when when calling a function. It's my hope that when a macro is used with the appropriate type hints, the Clojure compiler won't box the primitives but I don't know that.
On Aug 4, 6:03 am, Jonas Enlund <jonas.enl...@gmail.com> wrote: > On Tue, Aug 4, 2009 at 3:55 PM, Albert Cardona<sapri...@gmail.com> wrote: > > > Jonas wrote: > >> Can you give any hints on how I can make the transient sort faster? I > >> would like to get as close as possible to the native Java speed. > > > My guess is that you need primitive type hints. For example: > > > (let [pivot-value (v pivot-index)] > > > could be: > > > (let [pivot-value (int (v pivot-index))] > > > ... and so on. > > > Albert > > I have tried to add type hints but they don't seem to speed things up. > For example, if I add type hints to the partition! loop (where I would > have thought that > type hints would make the biggest difference) I don't see a speedup at all: > > (defn partition! [....] > ... > (loop [i (int left-index) store-index (int left-index)] > ...)- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
