ScaleDefrag: Design and implementation of a scalable file defragmentation tool for flash-based SSDs
Fig 14
Core scalability of ScaleDefrag on a manycore machine with an Intel Optane 900p SSD.
(A) Normalized defragmentation time of the existing tool 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 continually reduces execution time and increases throughput as more cores are used, reaching 4.57× higher throughput than the e4defrag at 64 cores.