Tried the equiv branch briefly: The "1.1 style" version is ~4% quicker, but still ~4x slower than Java and ~2x slower than mutable deftype.
But I found another issue: Array access apparently converts primitives to boxed values at every access. This is perhaps because aget/aset is a function and primitives cannot cross function boundaries? That would explain the relative slowness of arrays. Here is a test case http://gist.github.com/458669 And a profiler screenshot http://i589.photobucket.com/albums/ss334/j-g-faustus/profiling/array-test-50k.png 15% CPU time goes to Double.valueOf(double) in all-primitive array access and another ~4% to intCast(int). The number of calls to Double.valueOf(double) seems to suggest that it is called only on aset, not on aget, though I can't think of any reason how that could be. Does anyone know more about this? Regards jf On Jun 29, 9:31 pm, David Nolen <dnolen.li...@gmail.com> wrote: > > You should give the latest equiv branch a shot and let us know. The gap > should be a bit smaller since arithmetic operations won't box their results. > > David -- 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
