Spot Profiler for Java and Kotlin downloads statistics

Plugin for IntelliJ IDEA which simplifies measuring execution time for selected pieces of code.

Usage

Select target line(s) in a Java or Kotlin (Kotlin plugin version 1.4 or later is required) file, invoke 'Profile Code Fragment' from context menu, and run the code. If code is already executing in a debug session, an attempt to reload corresponding class will be performed automatically (can be disabled in settings).

Details

The plugin wraps the selected lines with the following code (Java example)

long start = System.nanoTime(); ... long end = System.nanoTime(); System.out.println("Location: " + (end - start));

Code isn't modified on disk, but just before passing it to the compiler. This will work only if project is built using IDEA's own build system (it won't work e.g. if the project is built using Gradle). The plugin then collects the printed output and displays it in editor.

Obviously, this approach is not suitable for micro-benchmarking, please use your own judgment on whether it is acceptable for your use case.