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Energy efficiency is an important factor in embedded systems design. We consider an embedded system with a dynamic voltage scaling (DVS) capable processor and its system-wide power consumption is dominated by the processor and memory. We present speed assignment polices for a set of periodic/aperiodic tasks that minimize the overall system energy consumption including active and idle power of CPU and other components. A limitation of most DVS-based system-wide energy optimization techniques isdoi:10.1145/1273444.1254771 fatcat:adhy637sqfadta3yh6g2oj2vi4