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Authors: Jung-Hoon Kim and Young-Sik Lee

Affiliation: Device Solution Research, Samsung Electronics Co., Hwasung, Republic of Korea

ISBN: 978-989-758-443-5

Keyword(s): NAND Flash Memory, Embedded Flash Storage, Flash Translation Layer, Internal Overhead, Response Time.

Abstract: NAND flash-based embedded storage may spend a long time on responding to a host storage system. Most of the flash translation layers (FTLs) of the embedded flash storage utilize a granular page-mapping level. However, they did not pay heed to page mapping management that causes the internal overhead of the page-level FTL. This overhead might damage the response time, especially after the random writes to the embedded flash storage. In this paper, we propose a novel method to reduce the internal overhead related to the page mapping write. This method exploits a virtually-shrunk segment exclusively to the page mapping table, which is implemented by our mapping-segmented flash translation layer (MSFTL). One mapping segment is intrinsically composed of consecutive page mappings smaller in size than a logical page of the host system. As a result, MSFTL drastically reduces the amount of page mapping data written and therefore improves both the average and worst response time compared with t he fine-granularity page-level FTLs. (More)

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Paper citation in several formats:
Kim, J. and Lee, Y. (2020). Exploiting Exclusive Higher Resolution to Enhance Response Time of Embedded Flash Storage.In Proceedings of the 15th International Conference on Software Technologies - Volume 1: ICSOFT, ISBN 978-989-758-443-5, pages 470-477. DOI: 10.5220/0009859804700477

@conference{icsoft20,
author={Jung{-}Hoon Kim. and Young{-}Sik Lee.},
title={Exploiting Exclusive Higher Resolution to Enhance Response Time of Embedded Flash Storage},
booktitle={Proceedings of the 15th International Conference on Software Technologies - Volume 1: ICSOFT,},
year={2020},
pages={470-477},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0009859804700477},
isbn={978-989-758-443-5},
}

TY - CONF

JO - Proceedings of the 15th International Conference on Software Technologies - Volume 1: ICSOFT,
TI - Exploiting Exclusive Higher Resolution to Enhance Response Time of Embedded Flash Storage
SN - 978-989-758-443-5
AU - Kim, J.
AU - Lee, Y.
PY - 2020
SP - 470
EP - 477
DO - 10.5220/0009859804700477

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