Hey, AFAIK the clojure reducers library gains its performance boost since the underlying JVM can make use of multiple cores. I wonder how this changes with Javascript being the platform. Don't JS engines have a single execution thread?
Balint On Thursday, June 28, 2012 11:47:46 PM UTC+2, David Nolen wrote: > > reducers are already available - though further perf work needs to be done > to really deliver on the performance promises. Even so I wouldn't be > surprised if they already outperform many chained sequence operations. > > David > > On Thu, Jun 28, 2012 at 5:45 PM, Ben Mabey <b...@benmabey.com> wrote: > >> On 6/24/12 10:31 PM, Christian M. wrote: >> >>> I think the only problem (if it is a problem at all), which won't be >>> solved soon is ClojureScript's performance resulting from creating a lot of >>> implicit objects in very high level computations. Something like (filter >>> (map (reduce ... ... (map ...)))) can't be as fast and as memory-efficient >>> for loops and in-place array operations of JS. In theory, the same holds >>> for Clojure and Java as well, however, in contrast to ClojureScript, I >>> never faced this problem on JVM yet. >>> >>> >> Does the new reducers library[1] work in ClojureScript? One of its >> advantages is that it avoids the per-step allocation overhead that you are >> mentioning with the chain of filters/maps/reduce calls. >> >> -Ben >> >> >> 1. http://clojure.com/blog/2012/**05/08/reducers-a-library-and-** >> model-for-collection-**processing.html<http://clojure.com/blog/2012/05/08/reducers-a-library-and-model-for-collection-processing.html> >> >> >> -- >> 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+unsubscribe@**googlegroups.com<clojure%2bunsubscr...@googlegroups.com> >> For more options, visit this group at >> http://groups.google.com/**group/clojure?hl=en<http://groups.google.com/group/clojure?hl=en> >> > > -- 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
