Java is somewhat like chrome in that it pre-emptively gets some RAM, because it's managing memory allocation to programs itself. (and because the speed increase

Java is somewhat like chrome in that it pre-emptively gets some RAM, because it's managing memory allocation to programs itself. (and because the speed increase of not doing system-calls offsets some of the performance hits from running a JIT) Is that 512 the lowest you can get it with command line options?