FileInputStream is slow

http://bannister.us/weblog/2008/06/22/why-fileinputstream-is-slow/

others
http://www.wbrogden.com/
http://www.ghostganz.com/blog/articles/2008/06/24/tostring-is-evil
http://www.jroller.com/eu/entry/throwng_npe
http://tech.puredanger.com/2008/06/24/performance-testing-tip-keep-a-log/