The Java Profiler for Every Developer

Profile with ease in IntelliJ IDEA

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Java Profiling and IntelliJ IDEA

Profile your application without leaving the IDE.

Fast start

To start profiling in IntelliJ IDEA, click on three dots in the upper-right corner of the IDE or on a "Play" gutter icon next to a code line and select "Profile with IntelliJ Profiler".

In-editor performance hints

The IntelliJ Profiler has in-editor performance hints, which enhance your profiling experience by providing easy-to-interpret color-coded annotations right in the gutter.

CPU and memory live charts

IntelliJ IDEA Ultimate provides a way to monitor live performance statistics for a running process. As opposed to viewing static figures, live data can help you to visualize resource consumption, identify resource-related bottlenecks, and understand how certain events affect the program performance.

Extensive analysis

Profiler tool window features different ways to display the collected data. You can choose which one works for you – flame graph, call tree, method list, timeline, or events.

CPU and Allocation Profiling

Read, analyze, and navigate profiler snapshots in the IDE.

Flame graph

This view helps you visualize the call stack for a selected thread and see how it changes over time. The wider a stack frame is, the longer the method takes to execute. The colored blocks display native, library, and user code.

Call tree

This view shows the percentage of the CPU time used by the methods, the method execution path in your application, and the total sample count. Call tree is useful for a quick overview of application activity and detection of critical execution paths.

Method list

This view shows a list of the methods executed while you were profiling your data. All of them are sorted by cumulative sample time. Each selected method has several views that show you either the method’s callers or callees.

Timeline

This is a visual representation of threads activity over time. It is helpful for detecting unusual GC activity, multithreading issues such as livelocks, and so on.