具備無線擬真環境之行動裝置耗電剖析工具

Abstract

具備無線擬真環境之行動裝置耗電剖析工具

In this thesis, we describe architecture and implementation of a measurement-based energy profiling tool with software controllable wireless environment for mobile embedded devices. Our tool uses event-driven energy accounting approach introduced in previous works and contributes to those with a software controllable wireless environment. Software developers can make their products more energy and network aware by using the tool. It helps them emulate a real-life mobility scenario that their applications may encounter. At the same time, the tool profiles C-code-block level energy consumption of the applications to spot the “hot” code blocks. This gives them a broader view of the applications’ energy consumption and network behavior. The tool basically combines a profiler, power measurement hardware and signal attenuator with RF-shielded chamber for the controllable wireless environment. Our tool does not instrument any driver code of Linux kernel, so it is relatively easier to deploy to any platform that can execute the kernel.