JProfiler Get rid of your performance problems and memory leaks! Modern Garbage Collection Tuning Java Performance Training Courses COURSES AVAILABLE NOW. We can provide training courses to handle all your Java performance needs Java Performance Tuning, 2nd ed The classic and most comprehensive book on tuning Java Java Performance Tuning Newsletter Your source of Java performance news. Subscribe now! Enter email: Training online Threading Essentials course JProfiler Get rid of your performance problems and memory leaks!

Back to newsletter 139 contents

As I said a couple of month's ago the G1 garbage collector is now officially supported (for the first time), so I decided now would be a good time to take stock and see what garbage collectors are available for use in the Oracle JVM.

A note from this newsletter's sponsor

I was surprised to find that the information detailing the full set of major combinations of collectors you can use isn't available in one place anywhere else, so I've put together a reference article that lists all the combinations. I've already found it useful myself having it all there in one place, I hope you do too.

Now on to all our usual links to Java performance tools, news, articles and, as ever, all the extracted tips from all of this month's referenced articles.

A note from this newsletter's sponsor

News

Java performance related news.

• The perils of race conditions and how memory models help
• JEE7 includes javax.cache Temporary Caching API, Injection for static members such as loggers, some HTML5 support, Enhanced asynchronous support for Servlet 3.0 and Java EE concurrency APIs for asynchronous support
• keep classes and interfaces simple
• Crunch is a new Java library that's aimed at simplifying the writing, testing, and running of MapReduce pipelines
• Gartner: Best and Worst EA and Application Architecture Practices - having performance management process is one of the best; lack of performance measurement is one of the worst

Tools

Java performance related tools.

• Voldemort is a scalable distributed key-value storage system
• Crunch is a Java library for writing, testing, and running pipelines of MapReduce jobs on Apache Hadoop
• Apache Cassandra scalable and highly available database
• subsecond (and other time period) offset heat-maps
• SWELL - An English-Like DSL for Swing Testing

A note from this newsletter's sponsor

Articles

• Garbage Collectors Available In JDK 1.7.0_04 (Jack Shirazi/fasterj.com)
• Big List of 20 Common Bottlenecks (Todd Hoff/highscalability)
• Voldemort on Solid State Drives (Vinoth Chandar, Lei Gao, Cuong Tran/linkedin)
• Java High CPU troubleshooting guide (Pierre-Hugues Charbonneau/Java EE Support Patterns)
• Multithreading Problems In Game Design (Erik McClure/blackhole12)
• Fitting Performance into the Software Development Lifecycle (Sasha Goldshtein/JavaLobby)
• The Changing World of Application Performance Management - And What It Means for Testing (Andreas Grabner/softwaretestpro)

Jack Shirazi

Back to newsletter 139 contents