Simultaneous optimization of battery-aware voltage regulator scheduling with dynamic voltage and frequency scaling
Youngjin Cho, Younghyun Kim, Yongsoo Joo, Kyungsoo Lee, Naehyuck Chang · 2008
Energy-aware task scheduling significantly reduces the total energy required by a system to perform a particular job, by dynamically changing the clock frequency and supply voltage at which the CPU operates. But this causes significant fluctuation of the current drawn from the power source, so that no single voltage regulator can achieve satisfactory efficiency over the entire range of operating currents.