Mandy Chung's Blog

Mandy Chung is a senior staff engineer at Sun Microsystems. She is working on the Java SE monitoring and management and other serviceability technologies. She leads the design and the implementation of the java.lang.management API, out-of-the-box manageability, and also the JConsole monitoring tool. Prior to joining Sun, she was the lead engineer working in the linker and dynamic loader project in Hewlett Packard.

Slides for JavaOne BOF - Monitoring and Troubleshooting Java Applications

Tomas Hurka and I gave a BOF last night presenting "Monitoring and Troubleshooting Java applications using JDK tools". The slides give an overview of the tools in the JDK, summarize the symptom and tools to use to diagnose a few typical performance problems including memory leak, deadlock, high lock contention that we walked through the demos. Check out the documentation, article and other resources listed in the slides that has detailed information.

If you are using JDK 5 or 6 earlier to update 7, you can download Java VisualVM at http://visualvm.dev.java.net/.

JavaOne 2009

This JavaOne I'll be speaking with Tomas Hurka, the VisualVM author on Wednesday June 03 at 6:45 p.m.:

BOF-4724: Monitoring and Troubleshooting Java™ Platform Applications with JDK™ Software

We will show the monitoring and troubleshooting capabilities from the JDK out-of-the-box.

We continue to enhance the monitoring and management capability of the JDK. Alan Bateman has added the new direct buffer monitoring feature in JDK 7. Check it out!

Java VisualVM Screencast

Java VisualVM is a new JDK tool added since JDK 6 Update 7 (<JDK>/bin/jvisualvm). It provides a nice graphical user interface for monitoring and troubleshooting Java applications and integrates several troubleshooting features introduced in JDK 5 and 6 as command-line utilities into this single GUI tool.

I like their screencast that shows VisualVM in action. It should help you get started. I also embed it here for your convenience:

See also the Java VisualVM User Guide:
http://java.sun.com/javase/6/docs/technotes/guides/visualvm/index.html
VisualVM project page:
https://visualvm.dev.java.net/gettingstarted.html

Let the VisualVM team know what you think and any feature you'd like to see.

June 2009

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Slides for JavaOne BOF - Monitoring and Troubleshooting Java Applications

JavaOne 2009

Java VisualVM Screencast

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