request: add TCP buffer options to rsync CLI?

[Stuart Midgley]

We see absolutely dismal performance from Canberra to Perth via  
Aarnet or Grangenet (gig connections across the country).  With  
standard rsync on a tuned tcp stack, we see about 700k/s.  I started  
playing with the --sockopts and have increased the performance to  
1.4M/s which is better, but still way off the pace.

There are similar patches for ssh at

	http://www.psc.edu/networking/projects/hpn-ssh/

which work wonders (up to 25M/s where previously we were at 700k/s).

I would love to see similar performance gains from rsync as I've see  
from the tuned ssh...

Stu.


--
Dr Stuart Midgley
Industry Uptake Program Leader
iVEC, 'The hub of advanced computing in Western Australia'
26 Dick Perry Avenue, Technology Park
Kensington WA 6151
Australia

Phone: +61 8 6436 8545
Fax: +61 8 6436 8555
Email: industry at ivec.org
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