On 2017-03-27 09:33 PM, Timothy Coalson wrote:
On Mon, Mar 27, 2017 at 9:44 PM, Harry Putnam <[email protected]> wrote:

Geoff Nordli <[email protected]> writes:

[...]

Just a thought here, you may want to try a different ssh cipher. Give
arcfour a try and see if that is fast enough for you.

Can that be done on ssh command line or must be done in ssh_config?

You are transferring via mbuffer through a separate TCP connection, so
changing the ssh cipher won't change the speed.

Tim
____

Hi Tim.

From my tests, arcfour produced a noticeable speed increase. I was digging around trying to find the numbers, but couldn't find them.

Also Harry will need to figure out what is good enough for speed. If I am doing frequent replication, then mbuffer makes a lot of sense, but if I am backing up a couple of times a day, then most likely an SSH connection is good enough.

I also compress data through the SSH connection, but since Harry said he was on a LAN compression wouldn't make sense.

Geoff




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