Adaptive power management for real-time event streams

Huang, Biao; Santinelli,; Chen, Guihai; Thiele,; Buttazzo,

doi:10.1109/aspdac.2010.5419928

Cited by 10 publications

(9 citation statements)

References 12 publications

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“…This section revisits the interface computation of a unimodal component developed in [4], [9], [18], and extends the results for the compositional analysis of unimodal systems that consist of multiple unimodal components that share the same resource under a hierarchical scheduling policy.…”

Section: Compositional Analysis Of Unimodal Systemsmentioning

confidence: 83%

Compositional Analysis of Multi-mode Systems

Phan

Lee

Sokolsky

2010

2010 22nd Euromicro Conference on Real-Time Systems

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Abstract-The paper presents a model for multi-mode realtime applications and develops new techniques for the compositional analysis of systems that contain multiple such applications. An algorithm for constructing an interface for a single multimode application is presented. Then, a method for computing an interface of a composite application is presented, which uses only the interfaces of constituent applications. A case study of an adaptive streaming system demonstrates that multi-mode analysis offers more precise results compared to a unimodal worst-case analysis.

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Section: Compositional Analysis Of Unimodal Systemsmentioning

confidence: 83%

Compositional Analysis of Multi-mode Systems

Phan

Lee

Sokolsky

2010

2010 22nd Euromicro Conference on Real-Time Systems

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“…A lot of researchers have explored DVS or DPM on realtime embedded system [1], [2], [9], [11], [22]. However, only a few have considered the combination of both DPM and DVS.…”

Section: Related Workmentioning

confidence: 99%

Effective Online Power Management with Adaptive Interplay of DVS and DPM for Embedded Real-Time System

Chen¹,

Huang²,

Huang

et al. 2013

2013 Euromicro Conference on Digital System Design

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Abstract-Effective power management is an important design concern for modern embedded systems. In this paper, we present an effective framework to integrate both DVS and DPM to optimize the overall energy consumption. We propose an online algorithm to determine the optimal operating frequency and mode transition of a processor based on the runtime workload. Our algorithm runs in O(n) time, where n is the number of the events stored in the system buffer. A feasibility analysis is also presented, which serves as a criteria for setting the system buffer as well as runtime schedulabilty check. The evaluations with specifications of two commercial processors show that our algorithm is more energy-efficient compared to existing schemes in the literature.

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“…This article summarizes and extends the results built in Huang et al ( , 2010. We apply Real-Time Calculus (Thiele et al 2000) to predict future event arrivals and Real-Time Interface ) for schedulability analysis.…”

Section: Introductionmentioning

confidence: 96%

Applying real-time interface and calculus for dynamic power management in hard real-time systems

et al. 2011

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Power dissipation has been an important design issue for a wide range of computer systems in the past decades. Dynamic power consumption due to signal switching activities and static power consumption due to leakage current are the two major sources of power consumption in a CMOS circuit. As CMOS technology advances towards deep sub-micron domain, static power dissipation is comparable to or even more than dynamic power dissipation. This article explores how to apply dynamic power management to reduce static power for hard real-time systems. We propose online algorithms that adaptively control the power mode of a system, procrastinating the processing of arrived events as late as possible. To cope with multiple event streams with different characteristics, we provide solutions for preemptive earliest-deadline-first and fixed-priority scheduling policies. By adopting a worstcase interval-based abstraction, our approach can not only tackle arbitrary event ar-164 Real-Time Syst (2011) 47: 163-193 rivals, e.g., with burstiness, but also guarantee hard real-time requirements with respect to both timing and backlog constraints. We also present extensive simulation results to demonstrate the effectiveness of our approaches.

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Adaptive power management for real-time event streams

Cited by 10 publications

References 12 publications

Compositional Analysis of Multi-mode Systems

Compositional Analysis of Multi-mode Systems

Effective Online Power Management with Adaptive Interplay of DVS and DPM for Embedded Real-Time System

Applying real-time interface and calculus for dynamic power management in hard real-time systems

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