This is really cool, would love to have something like this combined with graphs like the old ClojureScript benchmarks where we tracked based on git commit for the major JS engines.
David On Tue, Nov 5, 2013 at 11:04 PM, kovas boguta <kovas.bog...@gmail.com>wrote: > FYI, > > http://wagjo.github.io/benchmark-cljs/ > > has some interesting cljs perf comparisons for various datastructures, > for those who haven't seen it. > > > > On Tue, Nov 5, 2013 at 10:38 PM, kovas boguta <kovas.bog...@gmail.com> > wrote: > > I'm trying to optimize zippers for clojurescript. My benchmark is > > implementing the combinator systems from > > > > https://www.wolframscience.com/nksonline/page-102 > > > > which heavily stress both navigating and modifying the tree. > > > > A major hotspot seems to be data structure creation time, which can be > > between 10 and 200x slower than jvm. I'm using Chrome 30.0.1599.101 . > > > > Vectors: > > (time (dotimes [x 1000000] ( vector x))) > > cljs: 2175 msecs > > clj: 11.414 msecs > > > > strangely, apply is faster for cljs : > > (time (dotimes [x 1000000] (apply vector [x]))) > > cljs: 1175 msecs > > clj: 64.919 msecs > > > > into gives about the same result for cljs. > > > > Creating a datastructure literal (eg [x]) is about 5x slower in cljs > > over clj, which I would take, however in the zipper case the number of > > children can vary dynamically. > > > > Lists: > > (apply list [x]) is about 2x faster than the vector case in cljs, and > > within about 5x of the jvm speed. Unless there is a better idea, I may > > try a specialized list-oriented zipper and see how it performs. > > > > Records: > > Creation is about ~10x slower than in clj. What's weird is that > > creating hashmaps is actually marginally faster than creating records > > (however, records still have much faster field access, so I'm using a > > record-based zipper implementation) > > > > (defrecord Test [a]) > > (time (dotimes [x 1000000] (Test. x))) > > cljs: 60 msecs > > clj: 7.00 msecs > > > > Is there a trick to speed up vector and/or record creation? Should I > > look into a custom datastructure? > > > > Any ideas welcome. > > > > Thanks! > > -- > -- > 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 > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. > -- -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
