what is huge page?
https://wiki.debian.org/Hugepages
http://en.wikipedia.org/wiki/Page_%28computer_memory%29
http://kenwublog.com/tune-large-page-for-jvm-optimization
http://www.oracle.com/technetwork/java/javase/tech/largememory-jsp-137182.html
huge page in my practice
use huge page usage step by step :
http://dino.ciuffetti.info/2011/07/howto-java-huge-pages-linux/
a bit more detail:
http://www.peuss.de/node/67