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ScaleDefrag: Design and implementation of a scalable file defragmentation tool for flash-based SSDs

Fig 2

Overall procedure of serialized defragmentation process in the existing defragmentation scheme (e4defrag).

The e4defrag processes files sequentially with a single defragger, limiting multi-core parallelism and I/O concurrency.

Fig 2

doi: https://doi.org/10.1371/journal.pone.0348520.g002