In this article, I will introduce you to flamegraphs, how to use them, how to read them, what makes them unique, and their use cases.
A flamegraph is a complete visualization of hierarchical data (e.g stack traces, file system contents, etc) with a metric, typically resource usage, attached to the data. Flamegraphs were originally invented by Brendan Gregg. He was inspired by the inability to view, read, and understand stack traces using the regular profilers to debug performance issues. The flamegraph was created to fix this exact problem.
Flamegraphs allow you to view a call stack in a much more visual way. They give you insight into your code performance and allow you to debug efficiently by drilling down to the origin of a bug, thereby increasing the performance of your application.