> After looking around, it appears it is an inherent limitation of the
> SMB protocol. It doesn't pipeline requests which means it experiences
> the full 6 msecs latency introduced by MOCA. SMB2 should fix this when
> it is available in CIFS.

In my test, just now (using 1Gb interconnect) I got the following results.
I'll point out that with a wire 10x faster than Yannis's wire, I got CIFS
performance which is higher than 10x his NFS performance.  So I don't think
it's fair to conclude "it's inherent to CIFS."

Also, my NFS performance was acceptable, but not as good as the CIFS
performance.

CIFS
time dd if=/dev/zero of=junk.file bs=10M count=1000
(10 GB) copied, 103.609 s, 101 MB/s
real    1m43.719s
(I calculate 98 MB/s)

NFS
time dd if=/dev/zero of=junk.file bs=10M count=1000
real    2m21.163s
(I calculate 73 MB/s)

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