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An Energy Conservation DVFS Algorithm for the Android Operating System

첫 페이지 보기
  • 발행기관
    한국정보기술융합학회 바로가기
  • 간행물
    JoC 바로가기
  • 통권
    Volume1 Number1 (2010.12)바로가기
  • 페이지
    pp.93-100
  • 저자
    Wen-Yew Liang, Po-Ting Lai, Che Wun Chiou
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A188418

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원문정보

초록

영어
Typically, when a user wishes to minimise the energy consumption for an application running on a handheld device, he/she may choose to set the processor speed to its slowest level. However, our study indicated that due to the processes involved in memory accesses, decreasing the CPU frequency may not always reduce the energy consumption. A critical speed has been defined as the CPU frequency, at which energy consumption can be minimised for a program. It can be used when the user wants to maximise energy saving for the device if performance is a less important issue. In this paper, an energy conservation DVFS algorithm is proposed to achieve this goal. It predicts and applies the critical speed as the target CPU frequency during the program’s execution time. The algorithm relies on a prediction equation that is constructed based on the correlation between the critical speed and the memory access rate. We have implemented the algorithm on the Android operating system. Our results show that both the energy consumption and the performance can be improved than the situation of simply selecting the lowest frequency.

목차

Abstract
 I. INTRODUCTION
 II. RELATED WORKS
 III. PREDICTING THE FREQUENCY FOR MINIMUM ENERGYCONSUMPTION
  A. The Critical Speed
  B. Relationship between MAR and Critical Speed
  C. Construction of the MAR-CSE Equation
 IV. IMPLEMENTATION OF THE ENERGY CONSERVATION DVFS ALGORITHM
 V. EVALUATION
  A. The Experimental Set-up
  B. Results of the Benchmark Programs
 VI. CONCLUSIONS
 ACKNOWLEDGMENT
 REFERENCES

키워드

Embedded Systems Low Power Software Design DVFS Energy-conservation Android Linux

저자

  • Wen-Yew Liang [ Department of Computer Science and Information Engineering, National Taipei University of Technology, Taipei 106, Taiwan ]
  • Po-Ting Lai [ Department of Computer Science and Information Engineering, National Taipei University of Technology, Taipei 106, Taiwan ]
  • Che Wun Chiou [ Department of Computer Science and Information Engineering, Ching Yun University, Chung-Li 320, Taiwan ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국정보기술융합학회 [Korea Information Technology Convergence Society]
  • 설립연도
    2008
  • 분야
    공학>전자/정보통신공학
  • 소개
    본 학회는 IT 활용 및 융합에 관한 연구 및 교류를 촉진하고 학문의 발전과 응용에 공헌함을 목적으로 한다.

간행물

  • 간행물명
    JoC [Journal of Convergence]
  • 간기
    계간
  • pISSN
    2093-7741
  • eISSN
    2093-775X
  • 수록기간
    2010~2015
  • 십진분류
    KDC 004 DDC 004

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