Energy-Optimizing Source Code Transformations for OS-driven Embedded Software

The increasing software content of battery-powered embedded systems has fueled much interest in techniques for developing energyefficient embedded software. Source code transformations have previously been considered for application software to reduce its energy consumption. For complex embedded software applications, which consist of multiple concurrent processes running with the support of an embedded operating system (OS), it is known that the OS and the application-OS interaction significantly affect energy consumption. However, source code transformations explicitly targeting these effects have not been sufficiently studied. This paper proposes novel transformations for the source code of OS-driven multi-process embedded software programs in order to reduce their energy consumption. The key features of our optimizations are that they span process boundaries, and that they minimize the energy consumed in the execution of OS functions and services -- opportunities which are beyond ...

• Type: Conference
• Year: 2004
• Where: VLSID
• Authors: Yunsi Fei, Srivaths Ravi, Anand Raghunathan, Niraj K. Jha
• Keywords: Complex Embedded Software, Computer Architecture, Multi-process Embedded Software, Source Code Transformations, VLSID 2004