Abstract | ||
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Owing to flash memory constraints, a garbage collection (GC) mechanism hurts flash storage lifespan and performance since it generates a massive amount of write data to flash memory. To add insult to injury, all GC designs cannot identify disused data from valid data; therefore, all valid data, including disused data, will be rewritten to flash memory during the GC process. Fortunately, a flash storage vendor recently proposed a new write command to bring extra information to flash translation layer (FTL). Thanks to the new write command, the lifetime information of data can be brought from a host-side system to an FTL management layer for disused data identification. By such observations, this work proposes a dual-time referencing FTL (DTR-FTL) design to deal with disused data and minimize the overhead of GC by referring to data lifetime information and block retention time. |
Year | DOI | Venue |
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2020 | 10.1109/DAC18072.2020.9218610 | PROCEEDINGS OF THE 2020 57TH ACM/EDAC/IEEE DESIGN AUTOMATION CONFERENCE (DAC) |
Keywords | DocType | ISSN |
flash memory, multi-streamed write, time-aware FTL | Conference | 0738-100X |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Wei-Lin Wang | 1 | 1 | 1.38 |
Tseng-Yi Chen | 2 | 88 | 23.49 |
Yu-Ming Chang | 3 | 681 | 82.13 |
Hsin-Wen Wei | 4 | 222 | 30.39 |
Wei-Kuan Shih | 5 | 938 | 98.21 |