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Optimizations
Embedded Java
Java's strong appeal for embedded applications is sometimes offset by concerns about its speed and its memory requirements. However, there are techniques that you can use to boost Java performance and reduce memory needs, and of course the Java virtual machine you choose affects Java performance, too. You can make better-informed decisions about using Java by understanding the factors that affect its performance and selecting meaningful benchmarks for embedded applications.
J2ME devices: Real-world performance
Characterizing device performance helps developers write applications that provide good user experiences. Understanding performance aids developers in understanding each device's limitations and strengths, and in tailoring applications to suit their intent. Application performance is critical in low-level computing devices. This article illustrates how the Java Wireless Competency Centre designs tests to characterize the performance of real-world J2ME (Java 2 Platform, Micro Edition) devices. The center organizes the devices into different classes depending on their performance in the tests. The benchmark applications test VM performance, thread-switching, graphics, RMS (record management system), network communication, and XML parsing.
J2ME Game Optimization Secrets
This article describes the role that code optimization plays in writing fast games for mobile devices. Using examples I will show how, when and why to optimize your code to squeeze every last drop of performance out of MIDP-compliant handsets. We will discuss why optimization is necessary and why it is often best NOT to optimize. I explain the difference between high-level and low-level optimization and we will see how to use the Profiler utility that ships with the J2ME Wireless Toolkit to discover where to optimize your code. Finally this article reveals lots of techniques for making your MIDlets move.
Mobile device optimization
The cell phone business is growing at a breakneck pace, and keeping up with the latest technologies is a full-time occupation. In this article, I'll offer an update on what's currently available to the mobile device developer. I'll also include a rundown on the emerging technologies in the field, along with tips for integrating them into mobile applications.
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