On Stacking a Persistent Memory File System on Legacy File Systems

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dc.contributor.authorWoo, Hobinen
dc.contributor.authorHan, Daegyuen
dc.contributor.authorHa, Seungjoonen
dc.contributor.authorNoh, Sam H.en
dc.contributor.authorNam, Beomseoken
dc.date.accessioned2024-02-19T20:07:40Zen
dc.date.available2024-02-19T20:07:40Zen
dc.date.issued2023en
dc.description.abstractIn this work, we design and implement a Stackable Persistent memory File System (SPFS), which serves NVMM as a persistent writeback cache to NVMM-oblivious filesystems. SPFS can be stacked on a disk-optimized file system to improve I/O performance by absorbing frequent order-preserving small synchronous writes in NVMM while also exploiting the VFS cache of the underlying disk-optimized file system for non-synchronous writes. A stackable file system must be lightweight in that it manages only NVMM and not the disk or VFS cache. Therefore, SPFS manages all file system metadata including extents using simple but highly efficient dynamic hash tables. To manage extents using hash tables, we design a novel Extent Hashing algorithm that exhibits fast insertion as well as fast scan performance. Our performance study shows that SPFS effectively improves I/O performance of the lower file system by up to 9.9×.en
dc.description.versionPublished versionen
dc.format.extentPages 281-295en
dc.format.extent15 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.isbn9781939133328en
dc.identifier.orcidNoh, Sam Hyuk [0000-0002-9152-0321]en
dc.identifier.urihttps://hdl.handle.net/10919/118052en
dc.language.isoenen
dc.publisherUsenix Associationen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleOn Stacking a Persistent Memory File System on Legacy File Systemsen
dc.title.serialPROCEEDINGS of THE 21ST USENIX CONFERENCE ON FILE AND STORAGE TECHNOLOGIES, FAST 2023en
dc.typeConference proceedingen
dc.type.dcmitypeTexten
dc.type.otherProceedings Paperen
dc.type.otherBooken
pubs.finish-date2023-02-23en
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Computer Scienceen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen
pubs.start-date2023-02-21en

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