Enabling both stream_buffer and stream_buffer_remote

Beside any recommendation for or against mbuffer (you said it's another point of failure), is it recommended to have both **stream_buffer** and **stream_buffer_remote** when using **volume ssh://...**?

On --progress -v I see
```
in @ 8183 kiB/s, out @ 8183 kiB/s, 33.2 GiB total, buffer 100% fulll
```
which I guess is the local mbuffer output from option **stream_buffer**. Is it possible to also show the remote buffer status?

When comparing all the stream_buffer* and **stream_compress**, how do you compare the throughput? As the mbuffer rate is very jumpy. The only real comparison I guess would be the total time for a complete transfer.