CycleTandem: Energy-Saving Scheduling for Real-Time Systems with Hardware Accelerators

2018 ◽  
Author(s):  
Sandeep D'souza ◽  
Ragunathan Rajkumar
Keyword(s):  
Energy Saving ◽  
Real Time ◽  
Hardware Accelerators ◽  
Real Time Systems ◽  
Time Systems

Energy-Efficient Scheduling for Embedded Real-Time Systems Using Threshold Work-Demand Analysis

2017 ◽  
Vol 26 (06) ◽  
pp. 1750091 ◽  
Author(s):  
Linwei Niu ◽  
Wei Li
Keyword(s):  
Energy Saving ◽  
Real Time ◽  
Energy Efficient ◽  
Critical Speed ◽  
Demand Analysis ◽  
Real Time Systems ◽  
Work Demand ◽  
Hard Real Time ◽  
Time Systems ◽  
Earliest Deadline

In this paper, we study the problem of reducing the energy consumption for hard real-time systems scheduled according to either fixed-priority (FP) or earliest-deadline-first (EDF) scheme. To balance the static and dynamic energy consumptions, the concept of critical speed was proposed in previous research. Moreover, when combined with the processor idle/shutdown state, the critical speed was widely used as the lower bound for voltage scaling in literature. In this paper, we show that this strategy might not always be more energy efficient than the traditional DVS strategy and there exists a dynamic tradeoff between these two strategies depending on the job’s work-demand to be finished within certain intervals. To effectively address this issue, we propose a unified approach that combines these two strategies to achieve better overall energy saving performance. Our approach determines the energy-efficient speeds for real-time jobs in their corresponding feasible intervals based on the threshold work-demand analysis. Our experimental results demonstrate that the proposed techniques significantly outperform previous approaches in the overall energy saving performance.

Software Engineering for Real Time Systems

IEE Review ◽  
1992 ◽  
Vol 38 (3) ◽  
pp. 112
Author(s):  
Stuart Bennett
Keyword(s):  
Software Engineering ◽  
Real Time ◽  
Real Time Systems ◽  
Time Systems

Generic Round Robin Scheduling for Real Time Systems

2017 ◽  
Vol 7 (5) ◽  
pp. 148-155
Author(s):  
Pallab Banerjee ◽  
◽  
Riya Shree ◽  
Richa Kumari Verma ◽  
◽  
...  
Keyword(s):  
Real Time ◽  
Round Robin ◽  
Real Time Systems ◽  
Time Systems

Elastic scheduling in real-time systems

2013 ◽  
Vol 32 (2) ◽  
pp. 573-577
Author(s):  
Zhi-bang YANG ◽  
Cheng XU ◽  
Xu ZHOU ◽  
Xue-qing ZHU
Keyword(s):  
Real Time ◽  
Real Time Systems ◽  
Time Systems ◽  
Elastic Scheduling
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