btrfs is impressive. Chris judiciously selected his feature-set for technical reasons, as opposed silly marketing reasons. I mean, come on, a 128 bit filesystem? What was Sun thinking? That's a bullet point for glossies aimed at managers who don't understand exponents. (Disk storage space has been increasing at a uniform rate of about a bit every 1.5 years for the 23 years that I've been watching. And Linus would probably have a brain hemorrhage if presented with a set of patches for a 128 bit filesystem.) Pragmatic design decisions have allowed btrfs development to progress with remarkable agility.
No announcement yet.
Benchmarking ZFS On FreeBSD vs. EXT4 & Btrfs On Linux