EXT4 vs. XFS vs. Btrfs vs. F2FS With Linux 4.15 Comparing KPTI/Retpoline

The latest in our benchmarking with KPTI and Retpoline for Meltdown and Spectre mitigation is comparing the performance of the EXT4, XFS, Btrfs and F2FS file-systems with and without these features enabled while using the Linux 4.15 development kernel.