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首页> 外文期刊>Chinese Journal of Electronics >Energy-Aware Scheduling with Uncertain Execution Time for Real-Time Systems
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Energy-Aware Scheduling with Uncertain Execution Time for Real-Time Systems

机译:实时系统具有不确定执行时间的能源感知调度

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摘要

Energy-saving is extraordinary important for real-time systems. Dynamic voltage scaling (DVS) is an important technique to reduce the energy consumption of processors that support voltage scaling. It has been exploited extensively in task scheduling. However, many approaches take simple treatments and some of them even neglect the large voltage transition overheads. Although some strategies consider the penalty, frequency switching produces extra large time overhead and deadline misses occur frequently. In our paper, we propose an energy efficient soft real-time dynamic program scheme by using quantitative switching overhead and communication penalty for multitask scheduling with uncertain execution time. The experiments show that our approaches significantly outperform existing solutions both on simple-core and multi-core systems in terms of energy-saving.
机译:节能对于实时系统非常重要。动态电压缩放(DVS)是一种重要的技术,可以减少支持电压缩放的处理器的能耗。在任务调度中已被广泛使用。但是,许多方法采用简单的方法,其中一些方法甚至忽略了较大的电压转换开销。尽管某些策略考虑了代价,但是频率切换会产生额外的大量时间开销,并且经常会错过最后期限。在本文中,我们提出了一种高效节能的软实时动态程序方案,该方案利用定量切换开销和通信代价来执行不确定执行时间的多任务调度。实验表明,在节能方面,我们的方法在性能上明显优于单核和多核系统上的现有解决方案。

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