faster Math.exp() via JNI?

Question

I need to calculate Math.exp() from java very frequently, is it possible to get a native version to run faster than java\'s Math.exp()

Answer 1

The real question is, has this become a bottle neck for you? Have you profiled your application and found this to be a major cause of slow down?

If not, I would recommend using Java's version. Try not to pre-optimize as this will just cause development slow down. You may spend an extended amount of time on a problem that may not be a problem.

That being said, I think your test gave you your answer. If jni + C is slower, use java's version.