2013
DOI: 10.1145/2400682.2400700
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Optimal DPM and DVFS for frame-based real-time systems

Abstract: Dynamic Power Management (DPM) and Dynamic Voltage and Frequency Scaling (DVFS) are popular techniques for reducing energy consumption. Algorithms for optimal DVFS exist, but optimal DPM and the optimal combination of DVFS and DPM are not yet solved.In this article we use well-established models of DPM and DVFS for frame-based systems. We show that it is not sufficient-as some authors argue-to consider only individual invocations of a task. We define a schedule that also takes interactions between invocations … Show more

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Cited by 47 publications
(22 citation statements)
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“…For the combination of DPM and DVFS, tradeoffs between the two techniques should be considered [8]. When DVFS is used, the clock frequency is decreased to reduce the energy consumption during the execution of tasks, while the execution time increases and the idle time decreases.…”
Section: Low Power Techniquesmentioning
confidence: 99%
See 1 more Smart Citation
“…For the combination of DPM and DVFS, tradeoffs between the two techniques should be considered [8]. When DVFS is used, the clock frequency is decreased to reduce the energy consumption during the execution of tasks, while the execution time increases and the idle time decreases.…”
Section: Low Power Techniquesmentioning
confidence: 99%
“…One exception is Ref. [8], they lump two instances by scheduling one instance at the end of a time period and the next instance at the beginning of the next time period. However, this approach cannot lump more than two instances.…”
Section: Related Workmentioning
confidence: 99%
“…This strategy can be modeled with a function of cost against the length of the idle period. This function turns out to be piecewiselinear, increasing and concave [5]. Even if the task sizes are known, NP-hardness of the optimal scheduling algorithm was proven [6].…”
Section: Introductionmentioning
confidence: 99%
“…Recent studies show that the leakage power constitutes more than 40% of the total power consumption, being superlinearly dependent on the chip temperature [3]. This has attracted significant attention in recent years [4]- [10].…”
Section: Introductionmentioning
confidence: 99%
“…Recently, performance impact of DVFS and DCS have been studied using high level application graph models (directed acyclic graphs or synchronous data flow graphs) representing static workload scenarios [9], [10]. The power-temperature inter-dependency is either not incorporated or the influence of ambient temperature is not factored.…”
Section: Introductionmentioning
confidence: 99%