Transport Performance / Protocol Overhead (remote shell vs daemon)

[Wayne Sherman]

Does anyone know how these rsync transport methods compare?:

1) Rsync to remote host via an ssh tunnel to an Rsync daemon
vs.
2) Rsync to remote host via ssh remote shell

- Is there a performance difference in throughput or latency?
- Which one has higher protocol overhead?
- Does it matter if we are sending files or receiving them?
- Any memory usage differences?
- Security implications?  Is one more secure than another?

Thanks,

Wayne