From the course: Java Concurrency Troubleshooting: Latency and Throughput

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View blocked threads with Java Flight Recorder

View blocked threads with Java Flight Recorder - Java Tutorial

From the course: Java Concurrency Troubleshooting: Latency and Throughput

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View blocked threads with Java Flight Recorder

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- [Instructor] The Java Flight Recorder, JFR for short, is an add on to the JVM, and somehow it's even more awesome than Java Mission Control. You can add it to a standalone JVM by passing in these JVM parameters at startup. For this demonstration, though, we're going to use it inside the Java Mission Control console, JMC. What JFR offers us is the opportunity to quietly record the conditions of the JVM, resource utilization, threads, class loading, garbage collection, the works. Every single thing that's happening in your JVM with an application can be recorded for your later inspection. We can define specific events to trigger specific actions, we can record the JVM continuously, or for a specific timeframe. All of this for very very low overhead that doesn't noticeably affect the performance of the JVM. This is why I'm especially fond of JFR. The other commercial monitoring solutions typically require an agent to be…

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