Linux 4.15 I/O Scheduler Tests: BFQ, CFQ, Kyber

Written by Michael Larabel in Storage on 10 December 2017 at 11:26 AM EST. Page 3 of 4. 15 Comments.

When it came to our basic SQLite benchmark, CFQ was yielding faster performance than the other I/O schedulers benchmarked.

CFQ was also doing the best with random write performance in FIO.

With sequential reads there wasn't any difference except in the case of the I/O scheduler being disabled was much slower.

While CFQ was running the best on this laptop SSD with the FIO sequential write performance.