Lobo, Continuous Tuning
Lobo is a performance monitoring tool. It is designed to track how the performance of your systems evolve. It is specially useful if you are using agile development since your code and architecture evolve; if you don't constantly track your performance you might get a few surprises in the end.
Performance evolution
What JUnit does to code accuracy, Lobo does to the code performance. With your continuous integration turned on and a good performance profiling suit, you'll be able to exactly pin-point the modifications that lead to a good or bad performance scenario. It increases the performance visibility so you have more information to make the right decision.