> Anyone know any command line options for HotSpot that make it work harder to > compact things down into the smallest space possible, no matter what? I am > aware of several pages of documentation on HotSpot's GC options, and I've > been reading some of them, but it is a lot to wade through.
There is an -XX:+UseCompressedOops which may be relevant. In any case, is the actual live heap size larger (as in, the heap size after a full GC, presuming you're running with the default throughput collector), or are you comparing the growth of the heap size? In particular, heap size is a function of, among others, the amount of time spent GC:ing. The discrepancy may potentially be due to Hotspot increasing the heap size for efficiency policy reasons rather than necessarily that the live set is in fact bigger with Hotspot. You might start by running with -XX:+PrintGC -XX:+PrintGCDetails and look at the heap size after a full collection. -- / Peter Schuller -- 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
