> here's a talk given by Rob Johnson a few years ago at Microsoft Research: BetrFS: A Right-Optimized Write-Optimized File System https://www.youtube.com/watch?v=fBt5NuNsoII

Interesting talk, I wonder how much of the perf. advantage diminishes in a finished, production-ready implementation though.

Comparing an 80%-complete R&D prototype mule against crash-resilient posix-compliant production filesystems is basically never a fair perf. comparison.

You might find that just implementing rename and hard-links properly alone is going to kill your perf. since you dispensed with on-disk inode equivalents.

Nice to see people poking at these issues nonetheless, Linux needs better filesystem options.