What is VisualVM?

VisualVM is a Java profiler, one of the several types of Java performance tools (to see more of our favorite Java performance tools, check out this post). In today’s post, we’ll take a look at VisualVM, how it works, and some integrations and alternatives.

VisualVM is a powerful tool that provides a visual interface to see deep and detailed information about local and remote Java applications while they are running on a Java Virtual Machine (JVM). It utilizes and integrates some of the command-line tools that JDK provides and bundles them up to see the application within JVM; this bundle includes command-line tools jmap, jstack, jConsolem, jstat, and jinfo. All these tools are available in standard JDK distribution.

It helps the programmers and architects to track memory leaks, analyze the heap data, monitor the garbage collector and CPU profiling. It also helps to improve the application performance and ensure that memory usage is optimized. With features like thread analysis and head dump analysis, it is very handy in solving run-time problems.

Here are some of the screenshots:

https://stackify.com/what-is-visualvm/