Interposing Flash between Disk and DRAM to Save Energy for Streaming Workloads

    Research output: Book/ReportReportProfessional

    3 Citations (Scopus)
    54 Downloads (Pure)

    Abstract

    In computer systems, the storage hierarchy, composed of a disk drive and a DRAM, is responsible for a large portion of the total energy consumed. This work studies the energy merit of interposing flash memory as a streaming buffer between the disk drive and the DRAM. Doing so, we extend the spin-off period of the disk drive and cut down on the DRAM capacity at the cost of (extra) flash. We study two different streaming applications: mobile multimedia players and media servers. Our simulated results show that for light workloads, a system with a flash as a buffer between the disk and the DRAM consumes up to 40% less energy than the same system without a flash buffer. For heavy workloads savings of at least 30% are possible. We also address the wear-out of flash and present a simple solution to extend its lifetime.
    Original languageUndefined
    Place of PublicationEnschede
    PublisherDistributed and Embedded Security (DIES)
    Number of pages15
    Publication statusPublished - 30 Jun 2007

    Publication series

    NameCTIT Technical Report Series
    PublisherCentre for Telematics and Information Technology, University of Twente
    No.P2773/TR-CTIT-07-43
    ISSN (Print)1381-3625

    Keywords

    • IR-64158
    • EWI-10398
    • METIS-242182

    Cite this

    Khatib, M. G., van der Zwaag, B. J., Hartel, P. H., & Smit, G. J. M. (2007). Interposing Flash between Disk and DRAM to Save Energy for Streaming Workloads. (CTIT Technical Report Series; No. P2773/TR-CTIT-07-43). Enschede: Distributed and Embedded Security (DIES).
    Khatib, M.G. ; van der Zwaag, B.J. ; Hartel, Pieter H. ; Smit, Gerardus Johannes Maria. / Interposing Flash between Disk and DRAM to Save Energy for Streaming Workloads. Enschede : Distributed and Embedded Security (DIES), 2007. 15 p. (CTIT Technical Report Series; P2773/TR-CTIT-07-43).
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    abstract = "In computer systems, the storage hierarchy, composed of a disk drive and a DRAM, is responsible for a large portion of the total energy consumed. This work studies the energy merit of interposing flash memory as a streaming buffer between the disk drive and the DRAM. Doing so, we extend the spin-off period of the disk drive and cut down on the DRAM capacity at the cost of (extra) flash. We study two different streaming applications: mobile multimedia players and media servers. Our simulated results show that for light workloads, a system with a flash as a buffer between the disk and the DRAM consumes up to 40{\%} less energy than the same system without a flash buffer. For heavy workloads savings of at least 30{\%} are possible. We also address the wear-out of flash and present a simple solution to extend its lifetime.",
    keywords = "IR-64158, EWI-10398, METIS-242182",
    author = "M.G. Khatib and {van der Zwaag}, B.J. and Hartel, {Pieter H.} and Smit, {Gerardus Johannes Maria}",
    year = "2007",
    month = "6",
    day = "30",
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    series = "CTIT Technical Report Series",
    publisher = "Distributed and Embedded Security (DIES)",
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    Khatib, MG, van der Zwaag, BJ, Hartel, PH & Smit, GJM 2007, Interposing Flash between Disk and DRAM to Save Energy for Streaming Workloads. CTIT Technical Report Series, no. P2773/TR-CTIT-07-43, Distributed and Embedded Security (DIES), Enschede.

    Interposing Flash between Disk and DRAM to Save Energy for Streaming Workloads. / Khatib, M.G.; van der Zwaag, B.J.; Hartel, Pieter H.; Smit, Gerardus Johannes Maria.

    Enschede : Distributed and Embedded Security (DIES), 2007. 15 p. (CTIT Technical Report Series; No. P2773/TR-CTIT-07-43).

    Research output: Book/ReportReportProfessional

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    T1 - Interposing Flash between Disk and DRAM to Save Energy for Streaming Workloads

    AU - Khatib, M.G.

    AU - van der Zwaag, B.J.

    AU - Hartel, Pieter H.

    AU - Smit, Gerardus Johannes Maria

    PY - 2007/6/30

    Y1 - 2007/6/30

    N2 - In computer systems, the storage hierarchy, composed of a disk drive and a DRAM, is responsible for a large portion of the total energy consumed. This work studies the energy merit of interposing flash memory as a streaming buffer between the disk drive and the DRAM. Doing so, we extend the spin-off period of the disk drive and cut down on the DRAM capacity at the cost of (extra) flash. We study two different streaming applications: mobile multimedia players and media servers. Our simulated results show that for light workloads, a system with a flash as a buffer between the disk and the DRAM consumes up to 40% less energy than the same system without a flash buffer. For heavy workloads savings of at least 30% are possible. We also address the wear-out of flash and present a simple solution to extend its lifetime.

    AB - In computer systems, the storage hierarchy, composed of a disk drive and a DRAM, is responsible for a large portion of the total energy consumed. This work studies the energy merit of interposing flash memory as a streaming buffer between the disk drive and the DRAM. Doing so, we extend the spin-off period of the disk drive and cut down on the DRAM capacity at the cost of (extra) flash. We study two different streaming applications: mobile multimedia players and media servers. Our simulated results show that for light workloads, a system with a flash as a buffer between the disk and the DRAM consumes up to 40% less energy than the same system without a flash buffer. For heavy workloads savings of at least 30% are possible. We also address the wear-out of flash and present a simple solution to extend its lifetime.

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    KW - METIS-242182

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    PB - Distributed and Embedded Security (DIES)

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    Khatib MG, van der Zwaag BJ, Hartel PH, Smit GJM. Interposing Flash between Disk and DRAM to Save Energy for Streaming Workloads. Enschede: Distributed and Embedded Security (DIES), 2007. 15 p. (CTIT Technical Report Series; P2773/TR-CTIT-07-43).