rsync bandwidth usage

jp jp at saucer.midcoast.com
Tue Apr 22 14:28:18 GMT 2008


For situations where it's all new files, using -W would make it a lot 
more efficient and less CPU intensive.

You can ask rsync to be slower with it's built in bandwidth limiting 
options.

On Tue, Apr 22, 2008 at 12:14:02PM +0100, Joao Ferreira wrote:
> 
> On Tue, 2008-04-22 at 12:18 +0200, Fabian Cenedese wrote:
> > At 10:37 22.04.2008 +0100, Joao Ferreira gmail wrote:
> > >Hello all,
> > >
> > >I'm experiencing about 20MBit/s on a 100MBit/s ethernet connection when
> > >rsync'ing a lager number on _new_ files.
> > >
> > >I don't have much exeprience with rsync. I'dd just like to know if thi
> > >is an acceptable bw usage and what could be the limiting factors... in
> > >order to try to increase this speed.
> > >
> > >I'm considering using 1000MBit/s  dedicated connections and so I'dd like
> > >to know if I will or won't get faster operations, or if I will still
> > >have this 20MBit bottleneck.
> > >
> > >Furthermore... is there a way to ask rsync to be slower ?!?
> > 
> > How do you call rsync? 
> 
> rsync -av --delete --perms --acls ...
> 
> > Do you use zipping? 
> 
> I don't ask for it ? Is the default behaviour to use or not ?
> 
> > What are the used machines
> > (CPU type/freq)?
> 
> it's a Via C6 @ 1G Hz
> 
> >  We had the case that rsyncing to a NAS was not that
> > fast because the used CPU couldn't hold up. Another reason might be
> > the used rsync protocol, what rsync version do you use?
> > 
> 
> I'm using 3.0.0
> 
> > bye  Fabi
> > 
> > 
> 
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