On Mon, Dec 18, 2023 at 12:48:00PM +0100, Cedric Blancher wrote: > Good morning! > > How feasible would be a realtime NFSv4, which can guarantee NFSv4 > operations in a constant time manner suitable for realtime > applications (similar to XFS realtime support)? The XFS realtime subvoume is grossly misnamed, it does not guarantee anything at all. It just uses a separate, somewhat more predicatable allocator.