Task Sequencing in Frame-Based CPS
C.M. Krishna · IEEE Embedded Systems Letters · 2021
We introduce a simple figure-of-merit (foM) to schedule task executions in frame-based CPS workloads. The objective is to more effectively harvest the slack released by early task completions. The foM is derived based on the task execution time probability density functions (obtained by profiling). A nominal voltage/frequency is assigned to each task based on its activity factor; the aim is to keep power consumption reasonably steady. The simulation results show that this approach lengthens battery lifetime and reduces thermally induced processor aging.