J2EE Enterprise Edition

Can anyone discuss or give some links to good information about J2EE performance data?

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There are some good discussions on performance and scalability issues of J2ee at java.sun.com. If you search the site with keywords like "j2ee performance" you will catch the relevant discussions and technical articles.

http://www.serverwatch.com/ discusses many of the key app servers and either addresses or points to documentation which shows their compliance to J2ee standards and some performance issues. It's a bit glossy however.

As I understand it, work is in progress to develop a TPC-ish benchmark for J2ee solutions, but I don't think that anything is finalized. You can find discussions on this sort of topic at sun.java.com. Some partial ones have been or are being approved, i.e. ECPerf for EJB performance (http://java.sun.com/aboutJava/communityprocess/jsr/jsr_004_ecperf.html). The JSR spec is trying to standardize testing of JSP and servlets.

Honestly, I would say that the proof is in the prototyping. I think you have to try the tools out to get a good feel for real-world performance pertinent to your design and domain problem. A list like http://www.flashline.com/components/appservermatrix.jsp
 probably gives you a good place to start.



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