dc.citation.conferencePlace |
TH |
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dc.citation.title |
International Conference on Computer, Electrical, and Systems Science and Engineering |
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dc.contributor.author |
Hyun, Choulseung |
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dc.contributor.author |
Kwon, Hunki |
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dc.contributor.author |
Kim, Jaeho |
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dc.contributor.author |
Byun, Eujoon |
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dc.contributor.author |
Choi, Jongmoo |
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dc.contributor.author |
Lee, Donghee |
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dc.contributor.author |
Noh, Sam H. |
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dc.date.accessioned |
2023-12-20T04:37:20Z |
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dc.date.available |
2023-12-20T04:37:20Z |
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dc.date.created |
2016-10-06 |
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dc.date.issued |
2008-05-21 |
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dc.description.abstract |
Most file systems overwrite modified file data and metadata in their original locations, while the Log-structured File System (LFS) dynamically relocates them to other locations. We design and implement the Evergreen file system that can select between overwriting or relocation for each block of a file or metadata. Therefore, the Evergreen file system can achieve superior write performance by sequentializing write requests (similar to LFS-style relocation) when space utilization is low and overwriting when utilization is high. Another challenging issue is identifying performance benefits of LFS-style relocation over overwriting on a newly introduced SSD (Solid State Drive) which has only Flash-memory chips and control circuits without mechanical parts. Our experimental results measured on a SSD show that relocation outperforms overwriting when space utilization is below 80% and vice versa. |
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dc.identifier.bibliographicCitation |
International Conference on Computer, Electrical, and Systems Science and Engineering |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/41082 |
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dc.language |
영어 |
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dc.publisher |
World Academy of Science, Engineering and Technology |
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dc.title |
Performance trade-offs of file system between overwriting and dynamic relocation on a solid state drive |
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dc.type |
Conference Paper |
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