...It is not a tool to simulate requests from users, it is a tool to measure and calculate statistics on real operation of an application depending on the usage of the application by users. JavaMelody is open-source (ASL) and production-ready: in production in an application of 25 person-years. JavaMelody is easy to integrate in most applications and is lightweight (no profiling and no database). JavaMelody includes statistics of predefined counters (currently HTTP requests, SQL requests, jsf actions, struts actions, JSP pages, and methods of business façades if EJB3, Spring or Guice) with, for each counter.