| Item type |
SIG Technical Reports(1) |
| 公開日 |
2020-07-23 |
| タイトル |
|
|
タイトル |
Analyzing Performance Pitfalls of On-Demand Paging of InfiniBand |
| タイトル |
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|
言語 |
en |
|
タイトル |
Analyzing Performance Pitfalls of On-Demand Paging of InfiniBand |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
ネットワーク |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_18gh |
|
資源タイプ |
technical report |
| 著者所属 |
|
|
|
The University of Tokyo |
| 著者所属 |
|
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The University of Tokyo |
| 著者所属 |
|
|
|
The University of Tokyo |
| 著者所属(英) |
|
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|
en |
|
|
The University of Tokyo |
| 著者所属(英) |
|
|
|
en |
|
|
The University of Tokyo |
| 著者所属(英) |
|
|
|
en |
|
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The University of Tokyo |
| 著者名 |
Takuya, Fukuoka
Shigeyuki, Sato
Kenjiro, Taura
|
| 著者名(英) |
Takuya, Fukuoka
Shigeyuki, Sato
Kenjiro, Taura
|
| 論文抄録 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
For modern supercomputers, InfiniBand, a high-performance interconnect, is increasingly important because it offers remote direct memory access (RDMA) technology, which enables low-latency communication based on kernel bypassing. Because of the nature of kernel bypassing, conventional RDMA technology, however, requires memory registration to pin down communication buffers to physical memory before issuing communication operations, which is highly problematic both in the efficiency and productivity of memory management. Mellanox addressed this issue with On-Demand Paging (ODP), which is a feature to page-in/-out communication buffers automatically depending on the situation. Although ODP was said to take an acceptable cost, in this work, we reveal that ODP has awful performance pitfalls. We identify that the packet loss and timeout occur in simple conditions and incurs a large penalty on latency. We provide a detailed analysis of this phenomenon and explore ways of improving it. |
| 論文抄録(英) |
|
|
内容記述タイプ |
Other |
|
内容記述 |
For modern supercomputers, InfiniBand, a high-performance interconnect, is increasingly important because it offers remote direct memory access (RDMA) technology, which enables low-latency communication based on kernel bypassing. Because of the nature of kernel bypassing, conventional RDMA technology, however, requires memory registration to pin down communication buffers to physical memory before issuing communication operations, which is highly problematic both in the efficiency and productivity of memory management. Mellanox addressed this issue with On-Demand Paging (ODP), which is a feature to page-in/-out communication buffers automatically depending on the situation. Although ODP was said to take an acceptable cost, in this work, we reveal that ODP has awful performance pitfalls. We identify that the packet loss and timeout occur in simple conditions and incurs a large penalty on latency. We provide a detailed analysis of this phenomenon and explore ways of improving it. |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN10444176 |
| 書誌情報 |
研究報告システムソフトウェアとオペレーティング・システム（OS）
巻 2020-OS-150,
号 14,
p. 1-9,
発行日 2020-07-23
|
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2188-8795 |
| Notice |
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SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc. |
| 出版者 |
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言語 |
ja |
|
出版者 |
情報処理学会 |
IPSJ-OS20150014.pdf (1.0 MB)
