Embedded operating systems energy overhead

Ouni, Bassem; Belleudy, Cécile; Bilavarn, Sébastien; Senn, Eric

doi:10.1109/dasip.2011.6136853

Cited by 2 publications

(2 citation statements)

References 12 publications

(10 reference statements)

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“…As depicted in Figures 7 and 8, the test-bench consists in creating two threads P1 and P2 and generating a number of contextswitches as detailed in our recent work [15]. In fact in step 1, only one context switch is generated and in step n, n context switches are generated.…”

Section: The Scheduling Routinesmentioning

confidence: 99%

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Accurate energy characterization of OS services in embedded systems

Ouni

Belleudy

Senn³

2012

J Embedded Systems

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As technology scales for increased circuit density and performance, the management of power consumption in embedded systems is becoming critical. Because the operating system (OS) is a basic component of the embedded system, the reduction and characterization of its energy consumption is a main challenge for the designers. In this work, a flow of low power OS energy characterization is introduced. The variation of the energy and power consumption of the embedded OS services is studied. The remainder of this article details the methods used to determine energy and power overheads of a set of basic services of the embedded OS: scheduling, context switch and inter-process communication. The impacts of hardware and software parameters like processor frequency and scheduling policy on the energy consumption are analyzed. Also, models and laws of the power and energy are extracted. Then, to quantify the low power OS energetic overhead, the obtained models are integrated in the system level design. Our method allows estimating the energy consumption of the low power OS services when running an application on a specific hardware platform.

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Section: The Scheduling Routinesmentioning

confidence: 99%

“…The energy overhead increases exponentially with the rise of the size of data transmitted. Equation (15) represents the energy model: (15) Where λ and δ are coefficients depending on the message size and the IPC mechanism. The unit of E IPC and msz is respectively nJ and Bytes.…”

Section: Inter-process Communicationmentioning

confidence: 99%

Accurate energy characterization of OS services in embedded systems

Ouni

Belleudy

Senn³

2012

J Embedded Systems

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An Efficient Framework for Power-Aware Design of Heterogeneous MPSoC

Atitallah

Senn

Chillet

et al. 2013

IEEE Trans. Ind. Inf.

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International audienceCurrently, designing low-power complex embedded systems is a main challenge for corporations in a large number of electronic domains. There are multiple motivations which lead designers to consider low-power design such as increasing lifetime, improving battery longevity, limited battery capacity, and temperature constraints. Unfortunately, there is a lack of efficient methodology and accurate tool to obtain power/energy estimation of a complete system at different abstraction levels. This paper presents a global framework for power/energy estimation and optimization of heterogeneous multiprocessor system-on-chip (MPSoC). Within this framework, a power modeling methodology is defined, and an open platform is developed. Our methodology takes into account all the embedded system relevant aspects; the software, the hardware, and the operating system. The platform stands for Open Power and Energy Optimization PLatform and Estimator (Open-PEOPLE). It includes diverse estimation tools with respect to their abstraction levels in order to cover the overall design flow. Starting from functional estimation and down to real boards measurements, our platform helps designers to develop new power models, to explore new architectures, and to apply optimization techniques in order to reduce energy and power consumption of the system. The usefulness and the effectiveness of the proposed power estimation framework is demonstrated through a typical embedded system conceived around the Xilinx Virtex II Pro FPGA platform

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Embedded operating systems energy overhead

Cited by 2 publications

References 12 publications

Accurate energy characterization of OS services in embedded systems

Accurate energy characterization of OS services in embedded systems

An Efficient Framework for Power-Aware Design of Heterogeneous MPSoC

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