Linux 4.4 To 4.7 - EXT4 vs. F2FS vs. Btrfs Benchmarks
F2FS took a large first-place finish when it came to the FS-Mark test.
The Flash-Friendly File-System tended to do well for this test.
The multi-threaded FS-Mark run didn't yield much of a performance difference between EXT4, F2FS, and Btrfs.