An empirical study of F2FS on mobile devices

  • Yu Liang
  • , Chenchen Fu
  • , Yajuan Du
  • , Aosong Deng
  • , Mengying Zhao
  • , Liang Shi
  • , Chun Jason Xue

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

12 Scopus citations

Abstract

Flash Friendly File System (F2FS) is getting popular among mobile devices. However, lack of empirical and comprehensive analysis for characteristics of F2FS prohibits better application of F2FS. In this paper, we present a set of comprehensive experimental studies on mobile devices and show several counterintuitive observations on F2FS, including imprecise hot/cold data separation, unexpected trigger condition of background GC, impact of fragmentation on read performance and impact of readahead by fragments and available space. Based on these observations, we further provide several pilot solutions to improve the performance of these mobile devices. The objective is to inspire researchers and users to pay attention to F2FS characteristics, and further optimize its performance.

Original languageEnglish
Title of host publicationRTCSA 2017 - 23rd IEEE International Conference on Embedded and Real-Time Computing Systems and Applications
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538618981
DOIs
StatePublished - 19 Sep 2017
Externally publishedYes
Event23rd IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2017 - Hsinchu, Taiwan, Province of China
Duration: 16 Aug 201718 Aug 2017

Publication series

NameRTCSA 2017 - 23rd IEEE International Conference on Embedded and Real-Time Computing Systems and Applications

Conference

Conference23rd IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2017
Country/TerritoryTaiwan, Province of China
CityHsinchu
Period16/08/1718/08/17

Keywords

  • Background GC
  • F2FS
  • Fragmentation
  • Hot/Cold Data Separation
  • Readahead

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