Power Conscious Fixed Priority Scheduling for Hard Real-Time Systems

Power efficient design of real-time systems based on programmable processors becomes more important as system functionality is increasingly realized through software. This paper presents a powerefficient version of a widely used fixed priority scheduling method. The method yields a power reduction by exploiting slack times, both those inherent in the system schedule and those arising from variations of execution times. The proposed run-time mechanism is simple enough to be implemented in most kernels. Experimental results show that the proposed scheduling method obtains a significant power reduction across several kinds of applications.

• Type: Conference
• Year: 1999
• Where: DAC
• Authors: Youngsoo Shin, Kiyoung Choi
• Keywords: Computer Architecture, DAC 1999, Power Reduction, Priority Scheduling Method, Scheduling Method