rsync over ssh performance problem in cygwin

Greger Cronquist greger_cronquist at
Tue May 6 18:51:14 EST 2003

Yes, apply the buffered-IO patch to your windows rsync which is in the 
patch-directory in the source distribution (or get a now slightly old 
version at

Regards, Greger

Dmitry Melekhov wrote:

> Hello!
> We have strange problem with rsync performance.
> We do files syncronization from w2k (cygwin, rsync 2.5.6) over ssh to 
> Linux (rsync 2.5.5).
> We have several  10Mb  files.
> First time, when directory on Linux is empty, all looks OK- 
> syncronization takes about 10 minites.
> But when we try to do this second time, i.e. with files on Linux and 
> windows, synconization takes more than 10
> minites for _file_ !
> And, ssh process on windows eats about 90% of cpu :-(
> Any ideas?
> btw, certanly, linux-linux works ok in the same situation.

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