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After last month's bumper newsletter, I'm afraid this month's offering is much slimmer. On the positive side, we have two more tool reports, HPjmeter tool for viewing and analyzing Xrunhprof output, and Sitraka's PerformaSure J2EE analyzer. All our tool reports, past and present, are available from the tool reports page.

I've also added several major interesting category tips pages to the tips section of the website:

• Application server tuning tips
• Servlet and JSP tuning tips
• User Perception performance tips
• J2ME tuning tips

A note from this newsletter's sponsor

In addition, I went on a tool trawl and found quite a few previously unlisted tools. It is very positive that there are so many free tools available for Java performance tuning related work. But it is a big negative that so many of them duplicate each other's work. Come on guys, could you not work together and share the glory?

On the negative side, both Kirk and I have book deadlines which has absorbed the rest of our available time, so there is no roundup, no new tips section, and Javva went on holiday so there's no Javva either. Sorry Kirk and Javva fans, but they both assure me they'll be back next month.

If you feel this newsletter could be useful to a friend, why not send them the URL. Note also that Yukio Andoh's Japanese translation will hopefully be available at http://www.hatena.org/JavaPerformanceTuning/ in a while.

A note from this newsletter's sponsor

Reminder to vendors and creators of performance tools

As part of our ongoing commitment to informing our readers about performance tools, JavaPerformanceTuning.com presents one commercial tool and one non-commercial tool each month. If you are a vendor or creator of such a tool, and would like to have your tool presented, please contact me from this page. But do please note that we work on a first-completed, first-published basis. There is already a queue of vendors and freeware authors creating submissions for this column, so if you want your tool to be presented in the near future, contact us sooner rather than later.

Tool reports

• HPjmeter tool for viewing and analyzing Xrunhprof output
• Sitraka's PerformaSure J2EE analyzer.

News

Java performance tuning related news.

• New tips category page for application server tuning tips
• New tips category page for Servlet and JSP tuning tips
• New tips category page for user perception performance tips
• New tips category page for J2ME tuning tips
• Expected performance improvements for future J3D versions.
• Report on possible future JVM enhancements (better resource management).
• And more reporting on the same USENIX JVM symposium
• GemStone Facets 2.0 shared transactional Java workspace released

Links

• List of Java compilers

A note from this newsletter's sponsor

Tools

• (Free) Simple profiler class for timing code.
• (Free) JUnitPerf, JUnit test decorators to measure performance and scalability.
• (Free) ProGuard class file shrinker
• (Free) Urbancode's EJB benchmark recently updated
• (Free) Apache Jmeter load test tool
• (Free) EJP, Extensible Java profiler.
• (Free) Simple benchmarking framework
• (Free) Jarg bytecode optimizer and classfile shrinker
• (Free) Jode bytecode optimizer
• (Free) Bloat, Bytecode-Level Optimization and Analysis Tool
• (Free) PmiTester quries and reports WebSphere performance data
• (Free) PerfSummary.jsp, basic performance monitoring assistance for WebSphere
• (Free) JMunger, a tool that lets you add code to classes at runtime.
• (Free) Prose, a tool that lets you add code to classes at runtime.
• (Free) ECperf benchmark toolkit
• (Free) Tiny lightweight XML processor for J2ME apps.

Recent Articles

• Performance Tuning in Java (Dov Kruger/Java Devlopers Journal)
• The evolution of HashMap's hash function (Heinz Kabutz/Kabutz)
• Local vs Remote EJB (Rudy Dahbura/JavaPro)
• New EJB 2.1 stuff (Tarak Modi/JavaPro)
• Chapter 3 of "J2EE Design Patterns Applied" (Craig Berry, John Carnell, Matjaz Juric, Meeraj Kunnumpurath, Nadia Nashi, Sasha Romanosky/Wrox)
• Maintaining a Priority Queue (John Zukowski/Sun)
• Object memory sizing (Vladimir Roubtsov/JavaWorld)
• HotSpot performance (Daniel Savarese/JavaPro)
• Choosing EJB (Mark Johnson/Sun)
• NIO vs IO speed (Rama Roberts/Sun)
• JDBC driver performance (Robert Brunner/DevX)
• Server deadlock detection and avoidance (Rob Woollen/BEA)
• Animation basics (Phillip Kerman/informIT)
• XML performance (Eugene Kuznetsov/ebiz)
• Performance tuning methodology (Greg Holling/JavaWorld)
• Clustering (with Tomcat) (Shyam Kumar Doddavula/OnJava)
• J2ME performance (Jonathan Knudsen/Sun)
• Optimizing strategy (various/C2)
• (EAServer) Performance Tuning Techniques (?/Sybase)
• Animation techniques (David Kushner/IEEE Spectrum)
• Progress indicator design (Paul McInerney, Jin Li/IBM)
• Thread pools and work queues (Brian Goetz/IBM)
• Threads basics 4 (Jeff Friesen/JavaWorld)
• Threads basics 3 (Jeff Friesen/JavaWorld)
• Server deadlock detection and avoidance (Hugh Madden/TheServerSide)
• J2ME performance (Rick Grehan/Java Pro)
• XML performance (Cameron Laird/IBM)
• Performance and Scalability of EJB Applications (Emmanuel Cecchet, Julie Marguerite, Willy Zwaenepoel/OOPSLA)

Older articles

• High Availability J2EE (Damian Guy, Allan Packer, Tom Daly/Sun)
• J2ME considerations (AVIDWireless/AVIDWireless)
• WebSphere performance analysis (?/IBM)
• Clustering (Abraham Kang/JavaWorld)

Jack Shirazi

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