NFS Changes

Loopback Transport Support

Loopback transport provider devices (tlclts, tlcots, and tlcotsod) have been added to the TI-RPC definition file, /etc/netconfig. Also, the system will now have the following new loopback transport-specific directories and files:

The following ONC/NFS daemons support loopback transport requests:

The netid and address fields in the rpcinfo call (which queries /usr/sbin/rpcbind to determine what services have been registered) now give the loopback device name plus an address name, rather than the netbuf address provided by udp and tcp transport.

Additionally, the ticlts loopback transport device has a randomly generated string address.

User-Space Threads

The svc_run() function call in the RPC library automatically generates a thread on behalf of the application, to process incoming RPC requests. The threads are managed by the RPC library software.

RPC threads may be created when calling the RPC library.

NFS Server-Side Performance Enhancements

The NFS server daemon, /usr/sbin/nfsd, has been modified for performance reasons. The user may see more nfsd daemon processes running than requested, based on the number requested, and the number of processors configured. The change is documented in the nfsd(1M) manpage.

The NFS client-side buffer cache management has been modified to improve server performance from a VxFS file system mounted on the client.

The performance enhancements included have given HP industry leading NFS SPECsfs benchmark values on our V-Class platforms.