OFTL: Ordering-aware FTL for maximizing performance of the journaling file system

Daekyu Park, Dong Hyun Kang, Young Ik Eom

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

5 Scopus citations

Abstract

Journaling of ext4 file system employs two FLUSH commands to make their data durable, even though the FLUSH is more expensive than the ordinary write operations. In this paper, to halve the number of FLUSH commands, we propose an efficient FTL, called OFTL, that completely ensures the write order of the journal data blocks in storage-level. For performance compari-son, we implemented our OFTL on Jasmine OpenSSD and meas-ured its performance with three different workloads. Our exper-imental results show that OFTL outperforms the up-to-date FTLs on the existing journaling modes by up to 1.97 times.

Original languageEnglish
Title of host publicationProceedings of the 55th Annual Design Automation Conference, DAC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781450357005
DOIs
StatePublished - 24 Jun 2018
Event55th Annual Design Automation Conference, DAC 2018 - San Francisco, United States
Duration: 24 Jun 201829 Jun 2018

Publication series

NameProceedings - Design Automation Conference
VolumePart F137710
ISSN (Print)0738-100X

Conference

Conference55th Annual Design Automation Conference, DAC 2018
Country/TerritoryUnited States
CitySan Francisco
Period24/06/1829/06/18

Fingerprint

Dive into the research topics of 'OFTL: Ordering-aware FTL for maximizing performance of the journaling file system'. Together they form a unique fingerprint.

Cite this