nicky narak [http://community.jboss.org/people/nickynarak] created the discussion "Re: 5.1.0.GA considerably slower than 4.0.3RC2! Up to 200%" To view the discussion, visit: http://community.jboss.org/message/585216#585216 --------------------------------------------------------------    I have same problem, I develop by eclipse and jboss5.1 it have very slow every time in debuge mode, I develop with jboss4.2.3 have to faster. Now,Issue I want to change from jboss4.2.3 to Jboss5.1 for develop but It's to slow on debug.   2 Week, I search answer of Why debug mode to slow? Please aswer me. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/585216#585216] Start a new discussion in Performance Tuning at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]