Power Management and Tasks Scheduling Analysis in Power-Aware Real-Time Systems

Power aware computing has become popular recently because of the vast application of the portable systems. Many mechanisms have been proposed to manage energy consumption based on the dynamic voltage scaling. In this paper, we give a detailed analysis about static, dynamic power management and scheduling techniques to reduce energy consumption of tasks that have deadlines. We also study the overhead in the system when changing processor speed. Take into consideration this overhead, we decide whether slow down the processor speed or not.