research-article

Deterministic service guarantees for nand flash using partial block cleaning

Authors:

Siddharth Choudhuri,

Tony GivargisAuthors Info & Claims

CODES+ISSS '08: Proceedings of the 6th IEEE/ACM/IFIP international conference on Hardware/Software codesign and system synthesis

Pages 19 - 24

https://doi.org/10.1145/1450135.1450141

Published: 19 October 2008 Publication History

Abstract

NAND flash idiosyncrasies such as bulk erase and wear leveling results in non-linear and unpredictable read/write access times. In case of application domains such as streaming multimedia and real-time systems, a deterministic read/write access time is desired during design time. We propose a novel NAND flash translation layer called GFTL that guarantees fixed upper bounds (i.e., worst case service rates) for reads and writes that are comparable to a theoretical ideal case. Such guarantees are made possible by eliminating sources of non-determinism in GFTL design and using partial block cleaning. GFTL performs garbage collection in partial steps by dividing the garbage collection of a single block into several chunks, thereby interleaving and hiding the garbage collection latency while servicing requests.

Further, GFTL guarantees are independent of flash utilization, size or state. Along with theoretical bounds, benchmark results show the efficacy of our approach. Based on our experiments, GFTL requires an additional 16% of total blocks for flash management. GFTL service guarantees can be calculated from flash specifications. Thus, with GFTL, a designer can determine the service guarantees and size requirements apriori, during design time.

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Published In

cover image ACM Conferences

CODES+ISSS '08: Proceedings of the 6th IEEE/ACM/IFIP international conference on Hardware/Software codesign and system synthesis

October 2008

288 pages

ISBN:9781605584706

DOI:10.1145/1450135

Program Chairs:
Catherine Gebotys
University of Waterloo, Canada
,
Grant Martin
Tensilica, USA

Copyright © 2008 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 19 October 2008

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ESWEEK 08

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ESWEEK 08: Fourth Embedded Systems Week

October 19 - 24, 2008

GA, Atlanta, USA

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CODES+ISSS '08 Paper Acceptance Rate 44 of 143 submissions, 31%;

Overall Acceptance Rate 280 of 864 submissions, 32%

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Cited By

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https://doi.org/10.1007/978-3-031-64626-3_13
Chen NChen BSuga YSakurai KDing XSako K(2022)Duplicates also Matter! Towards Secure Deletion on Flash-based Storage Media by Removing DuplicatesProceedings of the 2022 ACM on Asia Conference on Computer and Communications Security10.1145/3488932.3523255(54-66)Online publication date: 30-May-2022
https://dl.acm.org/doi/10.1145/3488932.3523255
Missimer KAthanassoulis MWest R(2022)Telomere: Real-Time NAND Flash StorageACM Transactions on Embedded Computing Systems10.1145/347915721:1(1-24)Online publication date: 14-Jan-2022
https://dl.acm.org/doi/10.1145/3479157
Lee DHong DChoi WKim J(2022)MQSim-E: An Enterprise SSD SimulatorIEEE Computer Architecture Letters10.1109/LCA.2022.314477321:1(13-16)Online publication date: 1-Jan-2022
https://doi.org/10.1109/LCA.2022.3144773
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Sha ZLi JSong LTang JHuang MCai ZQian LLiao JLiu Z(2021)Low I/O Intensity-aware Partial GC Scheduling to Reduce Long-tail Latency in SSDsACM Transactions on Architecture and Code Optimization10.1145/346043318:4(1-25)Online publication date: 18-Aug-2021
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Pei SYang JLi B(2021)Edges: Evenly Distributing Garbage-Collections for Enterprise SSDs via Stochastic Optimization2021 IEEE International Conference on Networking, Architecture and Storage (NAS)10.1109/NAS51552.2021.9605402(1-4)Online publication date: Oct-2021
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