Question

I am currently trying to determine the cause of high memory usage in a Java application running on an exotic platform where I know of no instrumented JVM.

I have the source to the application, and can make changes to the source for the purposes of testing.

How can I debug memory usage under these conditions?

If more info is needed, I’ll be happy to provide. I’m just a little lost trying to use such an old jvm without much tooling to speak of.

Answer 1

If I were in your shoes I would approach it with:

1. Find the functional areas you know
   need attention.
2. Make backup copy of code
3. Start inserting print statements
   with start and end times
4. See what takes a lot of time and
   narrow it down.