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J2me Performance Tuning
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Object Lists: Performance and optimization under j2me
So you know your next project will require lots of handles to a variety of objects. You've done it all before in previous projects using other programming languages. The difference now is that you are using Java and your gut instinct tells you that those fancy Vector objects seem so slow and cumbersome, "no that's not for me", I hear you say "I need the speed of a fox and the simplicity of a dead fish."
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Teach an Old Chip a New Trick
Technology advances are setting a clear trend for the future of computing. More then ever before, people are looking to mobile computing and that means smaller more powerful devices. Combine this trend with the extensive reach and popularity of Java and you are left with the need to develop a high-speed low-resource implementation of Java.
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J2me Performance Improvement
Jamdat Mobile And Intel Improve Performance of Wireless Web Entertainment Applications-Company Achieves 500% Improvement in Wireless Data Transfer Rate Using Intel(R) Flash Data Integrator Technology
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J2ME™ CLDC Embedded CaffeineMark™
The above chart contains the Embedded CaffeineMark™ tests applicable to J2ME™ CLDC 1.0.1 (Connected, Limited Device Configuration) and which relate directly to interpreter performance. Eliminated are the String test which exercises the runtime garbage collection code and the floating-point test which is not applicable since CLDC does not support floating-point instructions. (Bytecodes can optionally supply floating-point support even for CLDC systems.) The data is from execution of the ARM™ version of the EBCI. The compiler used for the 'C' code version was the Microsoft™ eMbedded Visual C/C++ with highest valid optimization levels enabled.
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Performance Tuning
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Application Development Platform Race has Begun: BREW vs. J2ME
Sun Microsystems and Qualcomm are intending to push wireless development onto the fast track; if successful, gone will be the days of the tediously slow wireless Web. Even though Sun was off the mark first with its Java™ 2 Platform, Micro Edition (J2ME™), Qualcomm has not wasted any time promoting its Binary Runtime Environment for Wireless (BREW) application protocol.
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