Monday Dec 09, 2013

Java Mission Control and Flight Recorder Demo Series

Over the past few weeks I have been working on a set of screencast videos demoing the key features of Java Mission Control and Flight Recorder 5.2. As you may know, as of Java 7 u40 Java Mission Control and Flight Recorder are now included free with the JDK 7 downloads. The demos show you the basics of how to use these powerful tools.

The Web tutorial version, which includes text notes and a few tips on how you can follow along with the demos at home, can be found here:

Oracle Learning Library: Java Mission Control and Flight Recorder Demo Series

To just see the demos only on YouTube, here is a link to the play list.

YouTube: Java Mission Control and Flight Recorder Demo Series

I hope you enjoy all the demos!

Friday Nov 16, 2012

Garbage Collection Basics

Duke WavingJava Is an awesome programming language and platform. One of its better features is automatic garbage collection. Ever wondered how that works?

I have written an online web course outlining the basics. Much of what is included has been published before in various white papers and such. However, this is updated for JDK 7 and includes some nice illustrations of the steps involved. Hope you like it.

Garbage Collection Basics

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A follow-on web course on the G1 garbage collector should follow in a week or so.

Thursday Jul 19, 2012

New OBE on Java Performance Command Line Tools

Have you ever wanted to get information about a JVM that is already running? Find out things like what command line parameters were used to start the JVM? If so, check out this new OBE on the Oracle Learning Library:

Java SE 7: Reviewing JVM Performance Command Line Tools
OLL Entry | OBE

The tutorial covers jps, jstat, and the new jcmd command. Used together, these tools can make it easy to monitor running JVMs. Feel free to check it out at the links provided.

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