Version 1 of our document on some simple code improvements to JBoss 3.2.0 and the effect on performance is now available. We'll work on the document as time allows. The current data covers performance measurements based on Linux/IBM SDK/Trove. The document is an 820K pdf available from the section of our website on JBoss code optimizations, http://www.amitysolutions.com.au/pages/downloads.html#code. With four basic and relatively simple changes, we obtained a further 10 percent response time reduction over the bytecode optimizations we performed earlier - a total of about 30 percent in total over the vanilla JBoss distribution. This also seemed to translate to the same level of application responsiveness.
We also demonstrate the raw performance of Collections including Iterator over ArrayList get(i). Apart from that, the figures give some idea of the cost of internal client calls versus external client calls. We hope these are of some benefit. In the future, we would like to test ECperf performance gains but currently don't have the equipment to adequately meet the ECperf overall resource demands. If anyone would like to donate some equipment for testing, please step forward. ;) We'll also plan to look at Sun JDK performance and memory performance. Best regards, JonB.
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