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Free profiler number 19 and number 20 are listed in the tools this month. Many of those profilers are open source ones, almost half sourceforge listed ones. You can find the full list together with many other tools on our resources page.

When I first saw how many different profilers people are building, I thought it a shame that all that effort was being wasted in duplication. But then, I decided that choice is a plus, not a minus, and the more the merrier. With 20 free profilers and many more commercial ones, you have no excuse for not profiling your application. Except indecision. Or maybe not.

A note from this newsletter's sponsor

This month's newsletter is the Tate special. Dedicated to the Tate Modern museum in London (well not really, but read on). Not that I really like most modern art, but sometimes it can be highly spectacular. And Olaf Eliasson's "The Weather Project" where a huge hall has been converted into an indoor weather machine is definitely spectacular.

Almost by coincidence, we have a lot from another Tate modern this month, Bruce Tate who is himself state of the art. Bruce is Mr. Antipattern in the Java world, and if you haven't read about antipatterns then you are missing out on a huge source of performance tips -- it is fair to say that a large number of antipatterns have a significant amount to say about performance.

Kirk interviews Bruce in this month's interview, and we went out to find any available online pages of Bruce's work to extract tips for this month's tips page, and found an extraordinary 100 performance tips from half a dozen online URLs by him! Well done Bruce.

In addition, we have all our usual sections. Kirk's roundup covers the benefits of profiling, efficient caching, range searching, optimal J2EE applications, and much more. Our question of the month covers how to deal with OutOfMemoryErrors; Javva The Hutt meets J2EE performance cavemen; and, of course, we have over 100 new performance tips extracted in concise form.

Oh, and one last thing. Kirk and I are talking at JavaPolis next week, so if anyone is going to be there, swing by and say hello.

News

Java performance tuning related news.

• JSR174 Monitoring and Management Specification for the JVM available for review. Lists the stats that will be available to monitor.
• Teamstudio has released Edition 4 of its Teamstudio for Java suite
• Wily announces new version of introscope with JVM level monitoring
• Dirig Software announces Dirig Application Performance Platform (APP), an integrated J2EE performance management suite
• BEA announces Enhanced WebLogic Server Performance Monitoring Capabilities Through WebLogic Performance Monitor Console Extension (WL PMCE)

A note from this newsletter's sponsor

Tools

• Java Performance TestClient
• jMechanic is an Eclipse Java IDE plugin providing Java Profiling tools such as CPU Sampling and Heap Summary
• HeapRoots tool for debugging memory leaks in Java applications through analysis of "heap dumps." from IBM JVMs
• The WebLogic Server Performance Monitor Console Extension
• Dirig Application Performance Platform (APP) integrated J2EE performance management suite
• Sun's jvmstat performance analysis tool now available for Windows
• Analyzer, memory profiler and performance profiler suite of tools from TeamStudio

Articles With Tips Extracted

• Interviewing Bruce Tate (Kirk Pepperdine/JavaPerformanceTuning.com)
• The top 5 performance pigs (Bruce Tate/J2Life)
• Ch1 of Bitter Java, Bitter tales (Bruce Tate/Manning)
• Ch6 of Bitter Java, Bitter memories (Bruce Tate/Manning)
• Ch6 of Bitter EJB, Bitter messages (Bruce Tate, Mike Clark, Bob Lee, Patrick Linskey/Manning)
• Ch9 of Bitter EJB, Bitter tunes (Bruce Tate, Mike Clark, Bob Lee, Patrick Linskey/Manning)

Recent Articles

(Note these articles have not had their tips extracted yet, they have been added to our backlog ArticleList page)

• Minimize Java Distributions with an Automated, Custom JAR File (Greg Travis/devX)
• Stress testing (Jack Shirazi, Kirk Pepperdine/IBM)
• Business Tier Design Considerations (Deepak Alur, John Crupi, Dan Malks/informIT)
• Zip Objects, Zap Wait Time (Robert Beckett/JavaDevelopersJournal)
• MemoryCounter for Java 1.4 (Heinz Kabutz/Kabutz)
• Implementing Highly Available and Scalable Solutions Using the WebLogic Cluster (Jatinder Prem/informIT)
• Explore J2EE Antipatterns (William Crawford, Jonathan Kaplan/devX)
• Think Async (Edwin Khodabakchian/WebServicesJournal)
• The Uses of Constant Expressions (Doug Dunn /JavaDevelopersJournal)
• Java and Dilbert (Frank Karlstr?m/Karlstr?m)
• Qualities of a Good Middle-Tier Architecture (Satya Komatineni/OnJava)
• Give your DB a break (Dion Almaer/TheServerSide)
• Rethinking Swing Threading (Jonathan Simon/java.net)
• J2EE Application Profiling in WebSphere Studio (Benedict Fernandes, Ali Murtaza Manji/IBM)
• Adapter design pattern (David Geary/Javaworld)
• Performance best practices using WAS (Harvey Gunther/WebSphereDevelopersJournal)
• Abstract Factory Pattern (Mark Grand/Gamelan)
• How does garbage collection work? (Brian Goetz/IBM)
• NIO part1 (Jason Hunter/Oracle)
• NIO part2 (Jason Hunter/Oracle)
• CHOOSERS OUTSIDE DIALOGS (John Zukowski/Sun)

Jack Shirazi

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