ProGuard Performance - Will ProGuard make my software faster?

Question

Does anyone have experience in using ProGuard and are there already measurements about application performance beyond the class loading time?

I have a fairly complex application that could need a boost, but preparing it for ProGuard would take a few days, so I would like to hear some opinions before.

Answer 1

Most of the bytecode optimizations that ProGuard does are done just as well or better by any mainstream JVM's JIT, so for those you shouldn't expect significant improvements (except for class loading).