NFS Howto Optimization
From Linux NFS
Optimizing NFS Performance
Setting Block Size to Optimize Transfer Speeds
Packet Size and Network Drivers
Overflow of Fragmented Packets
NFS over TCP
Timeout and Retransmission Values
Number of Instances of the NFSD Server Daemon
Memory Limits on the Input Queue
Turning Off Autonegotiation of NICs and Hubs
Synchronous vs. Asynchronous Behavior in NFS
==== Non NFS-Related Means of Enhancing Server Performance