> Dose anybody could give me some advise on good jit > for java on linux? Or dose jdk1.1.6 have a default > jit? Even if you do find a JIT, beware of it. So far (possibly with the exception of the SunSoft JIT), none of the JIT's I've seen are reliable especially when you are running significant programs. For example, our application does not work with the recent Symantec JIT that is enabled by default on JDK 1.1.6 on Windows. A particular problem that we did solve was to workaround an apparent optimizing out of an array too early by the JIT. We had to insert the no-op: arrayobject.getClass() To prevent the JIT from taking the array away from us too early. Even though this has fixed one problem, there are many other known problems with various JITs and so even if your program apparantly runs right, you really cannot trust its results! :-( But the JIT's are improving and hopefully, we should be able to start relying on them for serious applications soon. Sriram. -- Metamata, Inc. http://www.metamata.com Tools for serious Java developers. +1 510 796 0915