Toward the Optimal Configuration of Dynamic Voltage Scaling Points in Real-Time Applications

In real-time applications, compiler-directed dynamicvoltage scaling (DVS) could reduce energy consumption efficiently,where compiler put voltage scaling points in the proper places, and thesupply voltage and clock frequency were adjusted to the relationshipbetween the reduced time and the reduced workload. This paper presentsthe optimal configuration of dynamic voltage scaling points withoutvoltage scaling overhead, which minimizes energy consumption. Theconclusion is proved theoretically. Finally, it is confirmed bysimulations with equally-spaced voltage scaling configuration.