Profiling a Java Spring application

Question

I have a Spring application that I believe has some bottlenecks, so I\'d like to run it with a profiler to measure what functions take how much time. Any recommendations to

Answer 1

Here's a general discussion with recommended tools & techniques.

Basically, it is entirely natural to assume if you want to find out how to make an app faster, that you should start by measuring how long functions take. That's a top-down approach.

There's a bottom-up approach that when you think about it is just as natural. That is not to ask about time, but to ask what it is doing, predominantly, and why it is doing it.