Native Parallelization in rsync

Jason Haar Jason_Haar at
Sun Sep 8 14:14:45 CEST 2013

On 08/09/13 18:28, Francis.Montagnac at wrote:
> There is another rather common case I think where this would help:
> when the destination directory is located on a NAS over NFS.

I think the biggest use-case is high bandwidth, high latency links. eg
you have a 50Mbs WAN link to a site in another country, and can never
get more than (say) 5Mbs. Parallelizing the data transfer could easily
push that up to 20-30Mbs

...and there is a "competitor" to rsync that does this - bbcp. Mirror a
directory from hostA to hostB using 'N' tcp streams. Runs like the
clappers :-)


Jason Haar
Information Security Manager, Trimble Navigation Ltd.
Phone: +1 408 481 8171
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