ZFS on Ubuntu 16.04 LTS
phoronix.comSo ext4 seems not to be so bad in comparison despite the hype of zfs/btrfs...
ZFS's killer features are keeping your data safe and actually having incredibly configurable pool setups as well as a plethora of filesystem features. Benchmarks aren't the only factor. tmpfs does great as a filesystem under benchmarks, that doesn't mean you should use it to store your data.