Java Flight Control How To Configure Custom

Java Flight Recorder is supported natively in the following JDK builds: Oracle JDK 8-10: provided that the UnlockCommercialFeatures VM option is enabled Oracle JDK 11 and later OpenJDK 11 and later Enable JFR for Oracle JDK 8 or later From the main menu, select Run Edit Configurations and from the list on the left, select the run configuration that you want to analyze with JFR.

To the VM options field, add the following line: -XX:UnlockCommercialFeatures.

JFR configurations There are two pre-installed configurations: Default and Profile.

The Profile configuration has overhead about 2 and can be used for more detailed application profiling.

You can select the most suitable configuration in SettingsPreferences Build, Execution, Deployment Java Profiler Java Flight Recorder.

If the pre-defined configurations dont meet your needs, you can create and upload your own settings by means of Java Mission Control.

Create a custom JFR configuration (optional) Run Java Mission Control that you can find in JAVAHOMEbinjmc or download from.

From the Java Mission Control main menu, select Window Flight Recording Template Manager.

Click Import Files on the panel on the right and select one of the pre-installed configurations in the.jfc format: For Java 10 and earlier: JAVAHOMEjrelibjfr For Java 11 and later: JAVAHOMEContentsHomelibjfr Select Edit Advanced, change the necessary settings, and click OK.

In the Flight Recording Template Manager dialog, click Export File.

Specify another name for the new settings file and change its location if necessary.

Java Flight Control How To Configure Custom

Click Save. For more information on how to configure custom settings, refer to Controlling Recording Data by Using Templates.

The default JAVAHOME path on Windows: C:Program FilesJava, on macOS: LibraryJavaJavaVirtualMachines.

Load the custom configuration to the IDE (optional) In the SettingsPreferences dialog CtrlAltS, select Build, Execution, Deployment Java Profiler.

Select the Java Flight Recorder profiling configuration to which you want to load your custom settings or create a new configuration by clicking.

In the Profiling Settings area, select the Custom settings file option and click.

Last modified: 27 November 2020 Async Profiler Run with a profiler.