Java Profiler Functions

Command Function

Collects statistics on hotspot methods in the current JVM and displays the statistics in flame graphs and inverted flame graphs.

Syntax

devkit java-perf [-h | --help] TASK [ARGS]

An RPM package is used as an example.

Example

View the information about Java performance analysis functions:

1	devkit java-perf -h

Command output:

 Usage: devkit java-perf [-h | --help] TASK [ARGS]

 The most commonly used devkit java sub tasks are:
   help      Get help information
   hotspot   Run the hotspot collection and analysis task

 See 'devkit java-perf TASK --help' for more information on a specific task.

**Table 1** Function description
Function	Description
help	Displays help information.
hotspot	Java application hotspot analysis.

Parent topic: Java Profiler