How can I see the code that HotSpot generates after optimizing?

Question

I'd like to have a better understanding of what optimizations HotSpot might generate for my Java code at run time.

Is there a way to see the optimized code that HotSpot is using after it's been running for a while?

Answer 1

You would need to use a debug build of the JVM. Then you can use some additional JVM parameters (such as -XX:+LogCompilation and -XX:+PrintOptoAssembly) which make the JVM to print out its optimizations.

Answer 2

http://mail.openjdk.java.net/pipermail/hotspot-dev/2009-February/001255.html

Answer 3

rewrite due to poor work and downvotes

Iced Tea

provides one avenue of approach.