A 10-MINUTE DESCRIPTION OF HOW JUDY ARRAYS WORK AND WHY THEY ARE SO FAST By Doug Baskins, doug@sourcejudy.com October 16, 2001, Revised July 2002 As the inventor of the Judy algorithm I've been asked repeatedly, "What makes Judy so fast?" The answer is not simple, but finally I can share all of the details. (In June 2002, Judy was opened sourced with a LGPL license and hosted at http://sourceforge