nfsiostat(8) on Linux
The text 4e9271f6d3c5, as Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
Emulate iostat for NFS mount points using /proc/self/mountstats
Flags it lists
-
--attr -
--dir -
--help -
--list -
--page -
--sort -
--version -
-a -
-d -
-h -
-l -
-p -
-s