request: add TCP buffer options to rsync CLI?

Stuart Midgley stuart.midgley at
Thu May 4 06:50:21 GMT 2006

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

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...


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

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

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