Slow NFS

[Chris Davies <chris-usenet@roaima.co.uk>]

I'm curious whether anyone has good a decent read/write speed using NFS
(v3 or 4) between a number of Debian "testing" based systems.

I've got one box exporting a number of filesystems using NFS v3, and
three others mounting various combinations of those file systems. I
see less than 10% disk throughput on the remote boxes that on the local
one. Switched gigabit LAN throughout.

I'd expect some hit, but 90% degredation seems awfully high.

Would migrating to NFS v4 help any? If anyone can offer suggestions,
I'll happily offer more details of my setup.

Thanks,
Chris