On one source of latency in NFSv4 client

Dmitry Irtegov; Pavel Belousov; Alexander Fal; Alexey Fedosenko

doi:10.1145/3166094.3166101

On one source of latency in NFSv4 client

Dmitry Irtegov, Pavel Belousov, Alexander Fal, Alexey Fedosenko

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › рецензирование

Аннотация

Due to VFS architecture limitation, Linux NFSv4 and 4.1 client cannot join RPC requests into compounds even in cases when it is allowed by protocol specification. This leads to the high sensitivity to the network latency and loss of performance on metadata-intensive operations, especially on workloads when many small files are opened. Similar issue exists in other Unixlike kernels. We propose a modification to VFS API that resolves this issue. We have a demo implementation of modified VFS and NFS client that shows measurable improvement of latency and general throughput on synthetic metadata-intensive tests, even with standard NFS servers.

Язык оригинала	английский
Название основной публикации	CEE-SECR 2017 - Proceedings of the 13th Central and Eastern European Software Engineering Conference in Russia
Издатель	Association for Computing Machinery
Число страниц	9
Том	Part F133327
ISBN (электронное издание)	9781450363969
DOI	https://doi.org/10.1145/3166094.3166101
Состояние	Опубликовано - 20 окт 2017
Событие	13th Central and Eastern European Software Engineering Conference in Russia, CEE-SECR 2017 - Saint-Petersburg, Российская Федерация Продолжительность: 20 окт 2017 → 21 окт 2017

Серия публикаций

Название	ACM International Conference Proceeding Series

Конференция

Конференция	13th Central and Eastern European Software Engineering Conference in Russia, CEE-SECR 2017
Страна	Российская Федерация
Город	Saint-Petersburg
Период	20.10.2017 → 21.10.2017

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Irtegov, D., Belousov, P., Fal, A., & Fedosenko, A. (2017). On one source of latency in NFSv4 client. В CEE-SECR 2017 - Proceedings of the 13th Central and Eastern European Software Engineering Conference in Russia (Том Part F133327). [3166101] (ACM International Conference Proceeding Series). Association for Computing Machinery. https://doi.org/10.1145/3166094.3166101

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title = "On one source of latency in NFSv4 client",

abstract = "Due to VFS architecture limitation, Linux NFSv4 and 4.1 client cannot join RPC requests into compounds even in cases when it is allowed by protocol specification. This leads to the high sensitivity to the network latency and loss of performance on metadata-intensive operations, especially on workloads when many small files are opened. Similar issue exists in other Unixlike kernels. We propose a modification to VFS API that resolves this issue. We have a demo implementation of modified VFS and NFS client that shows measurable improvement of latency and general throughput on synthetic metadata-intensive tests, even with standard NFS servers.",

keywords = "Compound RPC, Latency, Linux, Shared storage, VFS, compound RPC, latency, shared storage",

author = "Dmitry Irtegov and Pavel Belousov and Alexander Fal and Alexey Fedosenko",

year = "2017",

month = oct,

day = "20",

doi = "10.1145/3166094.3166101",

language = "English",

volume = "Part F133327",

series = "ACM International Conference Proceeding Series",

publisher = "Association for Computing Machinery",

booktitle = "CEE-SECR 2017 - Proceedings of the 13th Central and Eastern European Software Engineering Conference in Russia",

note = "13th Central and Eastern European Software Engineering Conference in Russia, CEE-SECR 2017 ; Conference date: 20-10-2017 Through 21-10-2017",

}

Irtegov, D, Belousov, P, Fal, A & Fedosenko, A 2017, On one source of latency in NFSv4 client. в CEE-SECR 2017 - Proceedings of the 13th Central and Eastern European Software Engineering Conference in Russia. том. Part F133327, 3166101, ACM International Conference Proceeding Series, Association for Computing Machinery, 13th Central and Eastern European Software Engineering Conference in Russia, CEE-SECR 2017, Saint-Petersburg, Российская Федерация, 20.10.2017. https://doi.org/10.1145/3166094.3166101

On one source of latency in NFSv4 client. / Irtegov, Dmitry; Belousov, Pavel; Fal, Alexander; Fedosenko, Alexey.

CEE-SECR 2017 - Proceedings of the 13th Central and Eastern European Software Engineering Conference in Russia. Том Part F133327 Association for Computing Machinery, 2017. 3166101 (ACM International Conference Proceeding Series).

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › рецензирование

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Доступ к документу

10.1145/3166094.3166101

Link to publication in Scopus