NAS Performance: NFS vs. SMB vs. SSHFS | Jake’s Blog
In trusted home networks NFS without encryption is the best choice on Linux for maximum performance. If you want encryption i would recommend SSHFS, it is a much simpler setup (compared to Kerberos), more cpu efficient and often only slightly slower than plaintext NFS. Samba/SMB is also not too far behind, but only really makes sense in a mixed (Windows/Linux) environment.