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Hello and welcome to another edition of the JavaPerformanceTuning newsletter. As part of our ongoing commitment to informing our readers about performance tools, from next month we will start two columns on performance tuning tools, presenting 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.

I'm slipping yet further behind. The number of articles which include useful performance information is still increasing, and I have to pass some to next month. I've listed them in a new backlog section so you don't miss out if you don't care about the extracted tips. Of the categorized articles, we have the usual mixture, a lot of J2EE, a little low-level, a little GUI, and as usual an increasing number on J2ME. In the news, ECperf gives us a nice vendor punch-up, the PetStore hubbub keeps on going, and Sun decides to port the HotSpot concept to J2ME.

Kirk continues his excellent roundup of the dicussion groups, we get extra updates on the ECperf situation, and additionally Kirk introduces The Meadow Muffin Award. Javva has a rant and pronounces C and C++ almost dead, and also introduces us to the first segment of his regular diary. After reading that, you'll understand why he doesn't give his real name. You don't want to miss either of these guys.

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

News

Java performance tuning related news.

• Newly categorized JavaPerformanceTuning page with JDBC transaction performance tips
• Newly categorized JavaPerformanceTuning page with all J2EE performance tips
• Newly categorized JavaPerformanceTuning page with RMI performance tips
• The wireless game profile group formed. Performance is a priority focus.
• BEA and IBM try one-upmanship on each other over their ECperf benchmarks
• Report about GemStone's patent for high-performance concurrent queues
• JRockit JVM available now for free.
• Oracle PetStore vs .net benchmark
• Pramati announce ECperf benchmark results
• BEA announce new ECperf benchmark results
• Sun's Monty technology, HotSpot for J2ME
• Sun community chat about 1.4. Bits and bobs about performance, no tips.
• The state of Java Gaming. Interesting in showing what Java can do fast enough.
• Sitraka and Mercury create a joint something, JMonitor, to load and monitor Java apps. It's not listed as a product on either website, so I guess this is spin.
• HyPerformix Introduces Optimizer Model
• Review of Didier Besset's Object-Oriented Implementation of Numerical Methods, which includes fast Java implemntations of many numerical methods.
• Performance tuning the PetStore (request for discussion)
• The resulting discussion on performance tuning the PetStore

Tools

• Robert Olofsson's Java memory profiler, JMP
• HyPerformix J2EE performance analyzers
• Timed and Softreference caches
• GemStone's GemFire provides high performance shared-memory objects, objects sharable across multiple JVMs
• P6Spy JDBC monitor is now open source.
• new version of Jakarta collections, which includes some performance optimized classes
• Altaworks announces their Panorama J2EE performance monitor.

Recent Articles

All the following page references have their tips extracted in the tips section.

• Combining apps in one JVM (Kirk Pepperdine/JavaDevelopersJournal)
• J2EE worst practices (Brett McLaughlin/OnJava)
• Mobile & wireless devices (James White/JavaDevelopersJournal)
• Database comparison (Timothy Dyck/EWeek)
• Why CMP is better than BMP (Tyler Jewell/JavaDevelopersJournal)
• JDBC optimizing for DB2 (John Goodson/JavaDevelopersJournal)
• Finalizers (Phil Vickers/IBM)
• Monitoring Networked Applications (Russ Currie/MessageQ)
• Accelerating GUI apps (after 1.4) (Dana Nourie/Sun)
• MIDP tips (Eric Giguere/Sun)
• Some (Intel chip) optimization myths debunked (George Walsh/DevX)
• EJB Clustering (Tyler Jewell/BEA)
• Assertions (Glen McCluskey/Sun)
• Java transaction management (JTS) (Brian Goetz/IBM)
• JDBC Drivers (Barrie Sosinsky/DevX)

Older Pages

All the following page references have their tips extracted in the tips section.

• Deadlocks (Heinz Kabutz/Kabutz)
• Anonymous inner classes (Heinz Kabutz/Kabutz)

Backlogged Pages

These are pages which may hold information of interest to the Java performance community, but I haven't had time to read them.

• Clustering technologies in Tomcat
• CMP to BMP pattern
• XML performance tips
• Performance and scalability of EJB applications
• Scalability of the Schwab app
• JDO object model
• Manageable commercial websites
• Websphere scalability study
• Websphere clustering scalability study
• Optimistic locking in WebSphere

Jack Shirazi

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