https://www.opsian.com/blog/always-on-production-flame-graphs/

Today we’re going to be introducing Opsian’s always-on production Flame Graphs for Java. Flame Graphs are a state-of-the-art visualisation that can help you rapidly identify bottlenecks and hot paths from profiling information. In this post we will cover some of the basics on what Flame Graphs are, how to use them effectively and then look at some real production examples.

What are Flame Graphs?

Before we get ahead of ourselves, let’s briefly go over what a Flame Graph is and how it can be used for those who might not be familiar.