Systems, Man, and Cybernetics

 

Home

• [P398] A Hybrid DVS Scheduling Approach for Hard Real-Time Systems
  Author(s): Eduardo Tavares, Pedro Dallegrave, Bruno Silva, Gustavo Callou, Bruno Nogueira, Paulo Maciel
  
  

  Abstract
  Dynamic Voltage Scaling (DVS) has been largely adopted as an effective technology for reducing energy consump- tion in embedded systems. Since the usage of DVS may affect the timing constraints of a hard real-time system, over the last decade, several pre-runtime as well as runtime scheduling approaches have been developed to tackle such an issue. Nevertheless, both have drawbacks that can be mitigated using a joint approach. This paper proposes a hybrid DVS scheduling approach for energy-constrained hard real-time systems, taking into account overheads, precedence and exclusion relations. The proposed method adopts a formal model based on time Petri nets in order to provide feasible schedules that satisfy timing and energy constraints.

  
   

Full Text (PDF)