How can I use Java Flight Recorder for performance monitoring?

How can I use Java Flight Recorder for performance monitoring?

Java Flight Recorder (JFR) is a powerful tool for monitoring and profiling Java applications. You can start by enabling JFR in your JVM options.

What JVM options do I need to enable JFR?

You can enable JFR by adding -XX:StartFlightRecording to your JVM options. You can also specify parameters like duration and filename.

Can I analyze the recorded data later?

Yes, you can analyze the recorded data using tools like Java Mission Control, which provides a graphical interface for insights.

Are there any performance overheads when using JFR?

JFR is designed to have minimal overhead, typically less than 1% in production environments, making it suitable for continuous monitoring.