Linux 5.0 File-System Benchmarks: Btrfs vs. EXT4 vs. F2FS vs. XFS

With all of the major file-systems seeing clean-up work during the Linux 4.21 merge window (now known as Linux 5.0 and particularly with F2FS seeing fixes as a result of it being picked up by Google for support on Pixel devices, I was curious to see how the current popular mainline file-system choices compare for performance. Btrfs, EXT4, F2FS, and XFS were tested on a SATA 3.0 solid-state drive, USB SSD, and an NVMe SSD.