Understanding implications of trim, discard, and background command for eMMC storage device

Byungjo Kim, Dong Hyun Kang, Changwoo Min, Young Ik Eom

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

12 Scopus citations

Abstract

Recently, eMMC is widely being used in mobile devices because of its characteristics such as low cost, small size, and low power consumption. In this paper, we analyze features of eMMC based on commands such as Trim, Discard, and Background to investigate how do commands affect the random write performance and lifetime of the NAND flash memory. Also, we propose a method that uses the Background command to improve the random write performance of eMMC. Our experimental results clearly show that our method outperforms the normal power-off method, on average, by 173% in terms of the random write performance.

Original languageEnglish
Title of host publication2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages709-710
Number of pages2
ISBN (Electronic)9781479951451
DOIs
StatePublished - 3 Feb 2014
Event2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014 - Tokyo, Japan
Duration: 7 Oct 201410 Oct 2014

Publication series

Name2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014

Conference

Conference2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
Country/TerritoryJapan
CityTokyo
Period7/10/1410/10/14

Keywords

  • Background command
  • Discard Command
  • Performance and Lifetime of eMMC
  • Trim command

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