μ-FTL: a memory-efficient flash translation layer supporting multiple mapping granularities
作者： Yong-Goo Lee , Dawoon Jung , Dongwon Kang , Jin-Soo Kim
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摘要: NAND flash memory is being widely adopted as a storage medium for embedded devices. FTL (Flash Translation Layer) one of the most essential software components in flash-based devices it allows to use legacy files systems by emulating traditional block device interface on top memory.In this paper, we propose novel FTL, called μ-FTL. The main design goal μ-FTL reduce foot-print small possible, while providing best performance supporting multiple mapping granularities based variable-sized extents. information managed μ-Tree, which offers an efficient index structure memory. Our evaluation results show that significantly outperforms other block-mapped FTLs with same size up 89.7%.
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