Exploiting flash memory for reducing disk power consumption in portable media players

Jaewoo Kim; Ahron Yang; Minseok Song

doi:10.1109/TCE.2009.5373761

Exploiting flash memory for reducing disk power consumption in portable media players

Jaewoo Kim, Ahron Yang, Minseok Song

Inha University

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Portable media players are increasingly using hard disk drives (HDD) to meet their storage requirements, but HDDs consume a significant amount of energy. Therefore video frames are prefetched into dynamic random access memory (DRAM) to allow the disk to go into low-power mode; but most mobile systems have limited DRAM, so little energy is actually saved in this way. We propose two new energysaving schemes: one improves the utilization of DRAM in storing prefetched frames, and the other extends this approach by making use of auxiliary flash memory. Simulations show that deploying a reasonable amount of auxiliary flash reduces disk energy consumption by up to 86% compared with conventional prefetching schemes¹.

Original language	English
Article number	5373761
Pages (from-to)	1997-2004
Number of pages	8
Journal	IEEE Transactions on Consumer Electronics
Volume	55
Issue number	4
DOIs	https://doi.org/10.1109/TCE.2009.5373761
State	Published - Nov 2009

Bibliographical note

Funding Information:
Minseok Song is a corresponding author. This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2007-331-D00355) This work was partly supported by the IT R&D program of MKE/KEIT. [2008-F-045-02]

Keywords

Disk power consumption
Flash memory
Portable media player
Video playback

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TCE.2009.5373761

Cite this

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abstract = "Portable media players are increasingly using hard disk drives (HDD) to meet their storage requirements, but HDDs consume a significant amount of energy. Therefore video frames are prefetched into dynamic random access memory (DRAM) to allow the disk to go into low-power mode; but most mobile systems have limited DRAM, so little energy is actually saved in this way. We propose two new energysaving schemes: one improves the utilization of DRAM in storing prefetched frames, and the other extends this approach by making use of auxiliary flash memory. Simulations show that deploying a reasonable amount of auxiliary flash reduces disk energy consumption by up to 86\% compared with conventional prefetching schemes1.",

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N2 - Portable media players are increasingly using hard disk drives (HDD) to meet their storage requirements, but HDDs consume a significant amount of energy. Therefore video frames are prefetched into dynamic random access memory (DRAM) to allow the disk to go into low-power mode; but most mobile systems have limited DRAM, so little energy is actually saved in this way. We propose two new energysaving schemes: one improves the utilization of DRAM in storing prefetched frames, and the other extends this approach by making use of auxiliary flash memory. Simulations show that deploying a reasonable amount of auxiliary flash reduces disk energy consumption by up to 86% compared with conventional prefetching schemes1.

AB - Portable media players are increasingly using hard disk drives (HDD) to meet their storage requirements, but HDDs consume a significant amount of energy. Therefore video frames are prefetched into dynamic random access memory (DRAM) to allow the disk to go into low-power mode; but most mobile systems have limited DRAM, so little energy is actually saved in this way. We propose two new energysaving schemes: one improves the utilization of DRAM in storing prefetched frames, and the other extends this approach by making use of auxiliary flash memory. Simulations show that deploying a reasonable amount of auxiliary flash reduces disk energy consumption by up to 86% compared with conventional prefetching schemes1.

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Exploiting flash memory for reducing disk power consumption in portable media players

Abstract

Bibliographical note

Keywords

UN SDGs

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