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Fast Searching of Log Area in FAST FTL Using Log Area Indexing
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Publication Year
2020-01-01
Journal
Lecture Notes in Electrical Engineering
Publisher
Springer Verlag
Citation
Lecture Notes in Electrical Engineering, Vol.590, pp.245-250
Keyword
FASTFlash memoryFTLIndexing
Mesh Keyword
Area indexingBinary search treesEmbedded deviceFASTFlash translation layerIndex informationRead performanceSystem softwares
All Science Classification Codes (ASJC)
Industrial and Manufacturing Engineering
Abstract
As flash memory is widely used for embedded devices, research on flash translation layer (FTL), a system software that reflects the pros and cons of flash memory, is steadily studied. FAST FTL, which stores the latest data in the form of a log, searches the log blocks to determine whether the data is updated. However, due to the low percentage of the latest data, it is inefficient to determine whether data is updated by exploring log blocks for all data. Therefore, this paper suggests a way to index information about log blocks to determine if data is up-to-date. The proposed method can improve read performance by indexing information about log blocks into a Binary Search Tree (BST) to quickly search the location of data that has been updated and not having to search log blocks.
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/36559
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85071883599&origin=inward
DOI
https://doi.org/10.1007/978-981-32-9244-4_34
Journal URL
http://www.springer.com/series/7818
Type
Conference
Funding
Acknowledgement. This research was supported by the MIST (Ministry of Science and ICT), Korea, under the National Program for Excellence in SW supervised by the IITP for Information & communications Technology Planning & Evaluation) (2015-0-00908).
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Chung, Tae-Sun Image
Chung, Tae-Sun정태선
Department of Software and Computer Engineering
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