Multi-Threading?

Kevin Korb kmk at sanitarium.net
Tue May 17 10:52:48 MDT 2011


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Also, make sure you aren't running with compression as it will just
waste CPU cycles.

If you are running rsync over ssh it might also be worth while to setup
a one time use rsyncd or even NFS mount to eliminate the encryption
overhead.

On 05/17/11 12:50, Matt McCutchen wrote:
> On Tue, 2011-05-17 at 08:45 -0700, CACook at quantum-sci.com wrote:
>> The connexion is Gb enet end-to-end, and is running at only 40Mb/s.
>> It has far more capacity than that.  The only limiting factor I can
>> see is on the backup server one core of the CPU is running 100% rsync.
>> Clearly rsync is not multi-threaded.
> 
> That's probably the delta-transfer algorithm.  Turning it off with
> --whole-file should help somewhat.
> 

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