Paper Abstract and Keywords |
Presentation |
2016-08-08 18:00
Write Optimization for SSDs using Workload-aware Cache Allocation Shugo Ogawa (NEC) CPSY2016-17 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In using low-cost SSDs, reduction in the amount of write data is an important problem for extending lifetime. It is also important to prevent space fragmentation for avoiding performance degradation. These problems can be alleviated by the increase of the capacity of write cache. However, excessive capacity allocation for writes causes the shortage of read cache capacity. To allocate appropriate cache capacity for reads and writes dynamically, this paper introduces a scheme that allocates adequate capacity at first for data read from hosts repeatedly. Then this scheme allocates all the rest cache capacity for writes to maximize the capacity of write cache with keeping read performance. Evaluation result shows that the proposed scheme reduces write data to SSDs 38%, and alleviates space fragmentation of SSDs by extending the size of sequential writes 49% on average. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
SSD / Lifetime / Fragmentation / Cache / Partitioning / Capacity optimization / Working set / |
Reference Info. |
IEICE Tech. Rep., vol. 116, no. 177, CPSY2016-17, pp. 83-88, Aug. 2016. |
Paper # |
CPSY2016-17 |
Date of Issue |
2016-08-01 (CPSY) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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CPSY2016-17 |
Conference Information |
Committee |
CPSY DC IPSJ-ARC |
Conference Date |
2016-08-08 - 2016-08-10 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kissei-Bunka-Hall (Matsumoto) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Parallel, Distributed and Cooperative Processing |
Paper Information |
Registration To |
CPSY |
Conference Code |
2016-08-CPSY-DC-ARC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Write Optimization for SSDs using Workload-aware Cache Allocation |
Sub Title (in English) |
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Keyword(1) |
SSD |
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Lifetime |
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Fragmentation |
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Cache |
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Partitioning |
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Capacity optimization |
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Working set |
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1st Author's Name |
Shugo Ogawa |
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NEC Corporation (NEC) |
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Speaker |
Author-1 |
Date Time |
2016-08-08 18:00:00 |
Presentation Time |
30 minutes |
Registration for |
CPSY |
Paper # |
CPSY2016-17 |
Volume (vol) |
vol.116 |
Number (no) |
no.177 |
Page |
pp.83-88 |
#Pages |
6 |
Date of Issue |
2016-08-01 (CPSY) |
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