[openib-general] ip over ib throughtput

[Talpey, Thomas]

At 11:13 PM 5/9/2006, Shirley Ma wrote:
>Have you tried to send payload smaller than 2044? Any difference?


You mean MTU or ULP payload? The default NFS reads and writes are
32KB, and in the addressing mode used in these tests they were
broken into 8 page-sized RDMA ops. So, there were 9 ops from the
server, per NFS read. I used the default MTU so these were probably
19 messages on the wire. I don't expect much difference with smaller
MTU, but smaller NFS ops would be noticeable.

Tom.