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Now on with this month's newsletter. Javva The Hutt is on holiday, but we have all our other usual Java performance tools, news, articles, a new cartoon at fasterj regarding volatile fields; and, of course, we have extracted tips from all of this month's referenced articles.

A note from this newsletter's sponsor

News

Java performance tuning related news.

• The G1 garbage collector is included in JDK6 update 14
• Nice roundup of memory dump analysers in Kirk's comment: Eclipse memory analyzer (MAT) is much better than what has been available but relies on the old IBM idea of dominators. NetBeans uses Generations, a much more powerful measurement with 0 false positives. This is not be confused with Generations in YourKit which while useful, is a stripped down version of NBP definition of Generations. Other than that, I give YourKit my full endorsement. If you are glued to Eclipse, you need to look at Holly Cummings contribution to IBMs Health Center (see Parleys 2009 performance tool University session). That is a very good tool.
• Kirk at JavaOne on Tuesday, June 2
• Optimizeit rises from the ashes as Embarcadero Technologies J Optimizer 2009.
• Slow Jar bug fixed

Tools

Java performance tuning related tools.

• Low cost stack trace profiling using AsyncGetCallTrace
• Text Processing in Parallel in a Register, textscan.java example
• The FailFastCollection
• IBM Real Time Application Execution Optimizer for Java

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Articles

• ACCU Roundup (Kirk Pepperdine/pepperdine)
• Faster logging with faster logger classes (Jeremy Manson/jeremymanson)
• Performance tuning considerations in your application server environment (Sean Walberg/IBM)
• 8 Best Practices to Improve Scalability (Abel Avram/infoQ)
• Performance Management in Continuous Integration (Andreas Alois/dynaTrace)
• The Return of the Usual Suspects (Olaf Heimburger/Oracle)
• Don't Be a Slave of the File System (Liviu Tudor/Gamelan)
• Using the Java Runtime API for JVM Memory Details (Viral Patel/javaLobby)

Jack Shirazi

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