关键词: 静态表驱动 动态电压调节 任务段 优化周期

Abstract:

Traditional embedded real-time scheduling strategies make the CPU work under its maximum voltage to satisfy the deadline constraints of real-time task s.But this is obviously unsuitable for the embedded application with energy constraints.In this paper,a real-time energy optimization algorithm named RT -SEO is presented.If a task set is schedulable under static table driven approaches,this algorithm optimizes the energy characteristics of the system st atically by dynamic voltage scaling.RT-SEO can reduce the energy cost of a real-time system obviously without deferring any deadline of the task set.

Key words: （static table driven,dynamic voltage scaling,task section,optimization period）