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Rethinking I/O request management over eMMC-based solid-state drives

  • Che-Wei Tsao
  • , Chun-Yi Liu
  • , Chien-Chung Ho
  • , Tse-Yuan Wang
  • , Po-Chun Huang
  • , Yuan-Hao Chang
  • , Tei-Wei Kuo

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

Due to its popularity and competitive prices, the embedded multimedia card (eMMC) has become a popular choice to replace raw flash chips in the design of solid-state drives (SSDs). However, an eMMC-based SSD often encounters its worst-case performance on random accesses. To address such a performance problem, this paper proposes an eMMC-aware strategy to exploit the characteristics of eMMC and access features of file systems, so as to effectively separate hot/cold data and repack data of I/O requests to improve the write performance of eMMC-based SSDs. According to the experiment results obtained, the proposed strategy can significantly improve random write performance, compared to prior works.
Original languageEnglish
Title of host publicationProceedings of the 2015 Conference on research in adaptive and convergent systems
PublisherAssociation for Computing Machinery
Pages451-456
ISBN (Print)978-1-4503-3738-0
DOIs
Publication statusPublished - Oct 2015
Externally publishedYes
EventResearch in Adaptive and Convergent Systems, RACS 2015 - Prague, Czech Republic
Duration: 9 Oct 201512 Oct 2015

Publication series

NameProceeding of the Conference on Research in Adaptive and Convergent Systems, RACS

Conference

ConferenceResearch in Adaptive and Convergent Systems, RACS 2015
PlaceCzech Republic
CityPrague
Period9/10/1512/10/15

Research Keywords

  • Flash memory
  • Performance
  • Reliability

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