CompoundFS: Compounding I/O operations in firmware file systems

Yujie Ren; Jian Zhang; Sudarsun Kannan

CompoundFS: Compounding I/O operations in firmware file systems

Yujie Ren, Jian Zhang, Sudarsun Kannan

School of Arts and Sciences, Computer Science

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

We introduce CompoundFS, a firmware-level file system that combines multiple filesystem I/O operations into a single compound operation to reduce software overheads. The overheads include frequent interaction (e.g., system calls), data copy, and the VFS overheads between user-level application and the storage stack. Further, to exploit the compute capability of modern storage, CompoundFS also provides a capability to offload simple I/O data processing operations to the device-level CPUs, which further provides an opportunity to reduce interaction with the filesystem, move data, and free-up host CPU for other operations. Preliminary evaluation of CompoundFS against the state-of-the-art user-level, kernel-level, and firmware-level file systems using microbenchmarks and a real-world application shows up to 178% and 75% performance gains, respectively.

Original language	English (US)
State	Published - 2020
Event	12th USENIX Workshop on Hot Topics in Storage and File Systems, HotStorage 2020, co-located withUSENIX ATC 2020 - Virtual, Online Duration: Jul 13 2020 → Jul 14 2020

Conference

Conference	12th USENIX Workshop on Hot Topics in Storage and File Systems, HotStorage 2020, co-located withUSENIX ATC 2020
City	Virtual, Online
Period	7/13/20 → 7/14/20

All Science Journal Classification (ASJC) codes

Software
Computer Networks and Communications
Hardware and Architecture
Information Systems

Cite this

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title = "CompoundFS: Compounding I/O operations in firmware file systems",

abstract = "We introduce CompoundFS, a firmware-level file system that combines multiple filesystem I/O operations into a single compound operation to reduce software overheads. The overheads include frequent interaction (e.g., system calls), data copy, and the VFS overheads between user-level application and the storage stack. Further, to exploit the compute capability of modern storage, CompoundFS also provides a capability to offload simple I/O data processing operations to the device-level CPUs, which further provides an opportunity to reduce interaction with the filesystem, move data, and free-up host CPU for other operations. Preliminary evaluation of CompoundFS against the state-of-the-art user-level, kernel-level, and firmware-level file systems using microbenchmarks and a real-world application shows up to 178% and 75% performance gains, respectively.",

author = "Yujie Ren and Jian Zhang and Sudarsun Kannan",

note = "Funding Information: We thank our Shepherd, Jeanna Matthews, and anonymous reviewers for their insightful feedback. We also thank Rutgers Panic Lab for giving us access to systems with DC Optane persistent memory. This work is supported by NSF CNS 1850297 award. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of NSF. Publisher Copyright: {\textcopyright} HotStorage 2020 - 12th USENIX Workshop on Hot Topics in Storage and File Systems, co-located with USENIX ATC 2020. All rights reserved.; 12th USENIX Workshop on Hot Topics in Storage and File Systems, HotStorage 2020, co-located withUSENIX ATC 2020 ; Conference date: 13-07-2020 Through 14-07-2020",

year = "2020",

language = "English (US)",

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T1 - CompoundFS

T2 - 12th USENIX Workshop on Hot Topics in Storage and File Systems, HotStorage 2020, co-located withUSENIX ATC 2020

AU - Ren, Yujie

AU - Zhang, Jian

AU - Kannan, Sudarsun

N1 - Funding Information: We thank our Shepherd, Jeanna Matthews, and anonymous reviewers for their insightful feedback. We also thank Rutgers Panic Lab for giving us access to systems with DC Optane persistent memory. This work is supported by NSF CNS 1850297 award. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of NSF. Publisher Copyright: © HotStorage 2020 - 12th USENIX Workshop on Hot Topics in Storage and File Systems, co-located with USENIX ATC 2020. All rights reserved.

PY - 2020

Y1 - 2020

N2 - We introduce CompoundFS, a firmware-level file system that combines multiple filesystem I/O operations into a single compound operation to reduce software overheads. The overheads include frequent interaction (e.g., system calls), data copy, and the VFS overheads between user-level application and the storage stack. Further, to exploit the compute capability of modern storage, CompoundFS also provides a capability to offload simple I/O data processing operations to the device-level CPUs, which further provides an opportunity to reduce interaction with the filesystem, move data, and free-up host CPU for other operations. Preliminary evaluation of CompoundFS against the state-of-the-art user-level, kernel-level, and firmware-level file systems using microbenchmarks and a real-world application shows up to 178% and 75% performance gains, respectively.

AB - We introduce CompoundFS, a firmware-level file system that combines multiple filesystem I/O operations into a single compound operation to reduce software overheads. The overheads include frequent interaction (e.g., system calls), data copy, and the VFS overheads between user-level application and the storage stack. Further, to exploit the compute capability of modern storage, CompoundFS also provides a capability to offload simple I/O data processing operations to the device-level CPUs, which further provides an opportunity to reduce interaction with the filesystem, move data, and free-up host CPU for other operations. Preliminary evaluation of CompoundFS against the state-of-the-art user-level, kernel-level, and firmware-level file systems using microbenchmarks and a real-world application shows up to 178% and 75% performance gains, respectively.

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M3 - Paper

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Y2 - 13 July 2020 through 14 July 2020

ER -

CompoundFS: Compounding I/O operations in firmware file systems

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All Science Journal Classification (ASJC) codes

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