request: add TCP buffer options to rsync CLI?

Jason Haar Jason.Haar at
Sun Nov 6 20:37:24 GMT 2005

Can someone tell me if such options would help the likes of ourselves 
with more "old fashion" linkspeeds?

We have 1-4Mbps VPN-over-Internet links (between continents - i.e. high 
latency), and routinely find rsync only capable of 300Kbps - and rsync 
is the best performer we can find. If we "parallelize" several rsync 
jobs (i.e. start a bunch at the same time), we can certainly chew up to 
80% of the max bandwidth - so the raw throughput potential is there.

Would such options help single rsync jobs? Actually, are there good 
default options in general that we could use that might help in our high 
speed, high latency environment?



Jason Haar
Information Security Manager, Trimble Navigation Ltd.
Phone: +64 3 9635 377 Fax: +64 3 9635 417
PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1

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