我的学习成长日记

非常不错的Jconsole官方文章，大家自己看吧。 http://docs.oracle.com/javase/6/docs/technotes/guides/management/jconsole.html

http://en.wikipedia.org/wiki/Amdahl%27s_law It is used to find the maximum expected improvement to an overall system when only part of the system is improved. It is often used in parallel computing