profiling - Monitor distribution of execution time of a java program -

I have a very long program with hundreds of methods, in my effort to increase the performance of the program, I took it in every method I want to monitor the time or want to see the loop, where should I start to customize the code.

Is there any eclipse plugin or software tool to do this? I mean that many lines of code are calculated without any method?

is an excellent profiler.

I usually run my code in a warm loop and attach it after raising the code, but it's OK to set a breakpoint in my code and even after that. Looks like you actually want visualvm, I use it to track performance constraints at least once in the code.