On Oct 18, 2014 3:54 AM, "Mark Martinec" <mark.martinec+free...@ijs.si>
> If the purpose of having a none cipher is to have a fast
> file transfer, then one should be using  sysutils/bbcp
> for that purposes. Uses ssd for authentication, and
> opens unencrypted channel(s) for the actual data transfer.
> It's also very fast, can use multiple TCP streams.

That's an interesting alternative to rsync, scp, and ftp, but doesn't help
with zfs send/recv which is where the none cipher really shines.

Without the none cipher, SSH becomes the bottleneck limiting transfers to
around 400 Mbps on a gigabit LAN. With the none cipher, the network becomes
the bottleneck limiting transfers to around 920 Mbps on the same gigabit

This is between two 8-core AMD Opteron 6200 systems using igb(4) NICs.
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