ScaleDefrag: Design and implementation of a scalable file defragmentation tool for flash-based SSDs
Fig 13
Core scalability of ScaleDefrag on a manycore machine with a CT250MX500 SSD.
(A) Normalized defragmentation time of the e4defrag and ScaleDefrag as the number of defragger increases from 1 to 64 (lower is better). (B) Defragmentation throughput (MB/s) under the same settings. ScaleDefrag continuously reduces execution time and increases throughput as more cores are used.