Usually going via kernel nfs client will use up more memory bandwidth. I would expect lower per-client numbers. From what I've read you go from 3 memcopies on u

Usually going via kernel nfs client will use up more memory bandwidth. I would expect lower per-client numbers. From what I've read you go from 3 memcopies on userspace to 4 with kernel nfs. I haven't yet instrumented memory bandwidth on my amd machines, but it feels like I'm at the limit.