Journal of the Korea Society of Computer and Information (한국컴퓨터정보학회논문지)

Korean Society of Computer Information (한국컴퓨터정보학회)
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Energy and Performance-Efficient Dynamic Load Distribution for Mobile Heterogeneous Storage Devices

에너지 및 성능 효율적인 이종 모바일 저장 장치용 동적 부하 분산

  • 김영진 (선문대학교 컴퓨터공학부) ;
  • 김지홍 (서울대학교 컴퓨터공학부)
  • Published : 2009.04.30
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Abstract

In this paper, we propose a dynamic load distribution technique at the operating system level in mobile storage systems with a heterogeneous storage pair of a small form-factor and disk and a flash memory, which aims at saving energy consumption as well as enhancing I/O performance. Our proposed technique takes a combinatory approach of file placement and buffer cache management techniques to find how the load can be distributed in an energy and performance-aware way for a heterogeneous mobile storage air of a hard disk and a flash memory. We demonstrate that the proposed technique provides better experimental results with heterogeneous mobile storage devices compared with the existing techniques through extensive simulations.

본 논문에서는 운영체제 수준에서 에너지 절감과 함께 I/O 성능 개선을 목적으로 하여 소형 하드 디스크와 플래시 메모리를 이종의 저장 장치로 가지는 모바일 시스템에 대해 동적 부하 분산 기법을 제안한다. 제안 기법은 부하가 에너지 및 성능 효율적인 방법으로 하드디스크와 플래시 메모리의 이종성의 저장 장치 구성에 대해서 어떻게 효율적으로 분산될 수 있을 것인지를 발견하기 위하여 파일 배치 기법과 버퍼 캐시 관리 기법을 결합하는 접근법을 취한다. 제안한 기법은 폭넓은 시뮬레이션을 통해서 기존의 기법들과 비교하여 이종의 모바일 저장장치들에 대해서 더 개선된 실험 결과를 보이는 것으로 나타났다.

Keywords

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