increasing the write block size for high latency

[Dan Stromberg]

On Tue, Jul 8, 2014 at 8:07 AM, Adam Edgar <aedgar at research.att.com> wrote:
> It seems the issue is indeed in the ssh layer. scp has the same issue and some work has been done in “fixing” that:
>
> http://www.psc.edu/index.php/hpn-ssh
>
> From the papers abstract:
>
>         SCP and the underlying SSH2 protocol implementation in OpenSSH is network performance limited by statically defined internal flow control buffers. These buffers often end up acting as a bottleneck for network throughput of SCP, especially on long and high bandwith network links.

It's a bit hard to believe that PSC's performance patches still
haven't been merged.