> I'm not sure how to determine why calling 'new Double' each time > through NewDoubleTest's inner loop causes 2 threads to perform not > much better than 1. The best possible explanation I've heard is from > Nicolas Oury -- perhaps we are measuring the bandwidth from cache to > main memory, not raw computational ability of the processor cores.
I assume that 'new Double' is actually doing a heap alloc? In that case, won't a lock need to be aquired for the allocation? With a high enough alloc rate, GC and the heap lock will reduce performance a lot. Brad --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
