On Wed, Aug 19, 2009 at 10:58:19AM -0500, Jim Leonard wrote:
> Tino Schwarze wrote:
> > I'd rule out the network. Samba might be doing fancy things to the TCP
> > level etc. Or you might try establishing an ssh tunnel to the Windows
> > host (or from Windows host to BackupPC server using putty which might be
> > easier), then point rsyncd to the local end of the tunnel.
> 
> I've already ruled out the network; I'm able to prove that rsyncd on the 
> windows side is simply not very fast :-(  In fact, I'm almost willing to 
> bet money that, if everyone checks their Full backup times, none of the 
> rsync ones will be over 10MB/s.  Why is rsyncd performance so bad in 
> Windows?

Alright, I can verify that. I just tried with a fresh install of Cygwin
and rsyncd. Copying an 8GB file via rsyncd yields about 14 MB/s. Using
plain smbclient, I get "average 40119.7 kb/s" which is about the maximum
write speed of the RAID.

Maybe there is some tuning possible with the socket options
configuration parameter. I couldn't find any recommendations though.

Tino.

-- 
"What we nourish flourishes." - "Was wir nähren erblüht."

www.lichtkreis-chemnitz.de
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