Power‐conscious Scheduling for Real‐time Embedded Systems Design
Youngsoo Shin, Ki‐Young Choi, Takayasu Sakurai · VLSI design · 2000
Power efficient design of real‐time embedded systems based on programmable processors becomes more important as system functionality is increasingly realized through software. We address a power optimization method for real‐time embedded applications on a variable speed processor. The method combines off‐line and on‐line components. The off‐line component determines the lowest possible maximum processor speed while guaranteeing deadlines of all tasks. The on‐line component dynamically varies the processor speed or bring a processor into a power‐down mode to exploit execution time variations and idle intervals. Experimental results show that the proposed method obtains a significant power reduction across several kinds of applications.