[throwaway1194]

> I think that makes some sense for performance, too: people run databases where IO efficiency eventually translates to money saved every month, and then we desktop users benefit from many of those as well.

Indeed, that's a huge advantage of Linux, the fact that we all run the same Linux kernel and benefit from improvements coming from all directions.

Linus himself mentions this advantage here: https://www.youtube.com/watch?v=MShbP3OpASA&t=2330

There's a nice recent benchmark here (Bcachefs vs. Btrfs vs. EXT4 vs. F2FS vs. XFS): https://www.phoronix.com/review/linux-611-filesystems

Bcachefs is starting to look really good against Btrfs, no APFS or ZFS though, but still interesting nonetheless.