Comment by monocasa
6 years ago
I mean, he's right. VFS, VMM, and buffer cache are all three sides of the same coin. Nearly every system that puts the FS in user space has abysmal performance; the one exception I can think of off the top of my head is XOK's native FS which is very very very different than traditional filesystems at every layer in the stack, and has abysmal performance again once two processes are accessing the same files.
Oh, I totally agree. But between that statement and this one about ZFS, the takeaway seems to be: for filesystems on Linux, go GPL or go home. Which is fine if that's his attitude, but if so I do wish he'd be more direct about it rather than making claims that are questionable at best (e.g. "ZFS is not maintained"--wtf?).