Maximum Memory Used by a Java Application

Max memory = [-Xmx] + [-XX:MaxPermSize] + number_of_threads * [-Xss]

http://www.javacodegeeks.com/2013/06/why-does-my-java-process-consume-more-memory-than-xmx.html

use pmap to look at memory map of process in linux

http://linux.die.net/man/1/pmap

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