Rsync Performance In Windows

[Chris McKeever]

Thanks for your reply!

> -----Original Message-----
> From: Greger Cronquist [mailto:greger_cronquist at yahoo.se]
> Sent: Monday, June 16, 2003 2:42 PM
> To: _Chris McKeever_
> Cc: rsync at lists.samba.org
> Subject: Re: Rsync Performance In Windows
> 
> 
> Did you compile from the sources, or did you grab the cygwin binary?

I just did the standard install (which I dont think was a full source
compile)
> 
> I suggest you build it from the sources and apply the 
> "craigb-perf.diff" 
> patch which is in the patches directory in the 2.5.6 
> distribution. This 
> patch makes all the difference for Windows (system calls cost a lot 
> under cygwin).
> 

as I said, I am not running cygwin on that machine, only rsync which I
copied from the other cygwin install.  Do you suggest that I run cygwin on
the windows box that I am using rsync?

> If you don't want to compile it yourself, I have an older version 
> (2.5.6cvs from august last year, works nicely) available at 
> http://www.niradynamics.se/~nira_greger/
> 
> /Greger
> 
> _Chris McKeever_ wrote:
> 
> >Has anyone else experienced high CPU usage when using RSYNC 
> in windows 2000
> >server?  I am using the rsync.exe (and applicable DLL's) 
> from the cygwin
> >installation (I am not however running cygwin on this machine).
> >
> >The linux machine connecting to the windows rsync daemon has 
> a very low
> >performance hit when the session is running (see below).  
> However, the
> >windows machine, which has a much faster CPU hits a CPU 
> usage of 100%.
> >
> >If anyone else has seen this, and/or can help alleviate the 
> issue, that
> >would be great.  I am using rsync to backup across our 
> network our branch
> >file servers.
> >
> >CPU states:  1.5% user,  3.1% system,  0.0% nice, 95.2% idle
> >Mem:   126636K av,  124008K used,    2628K free,       0K 
> shrd,   26580K
> >buff
> >Swap: 1020560K av,    7360K used, 1013200K free              
>      32044K
> >cached
> >
> >  PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
> >18600 root      15   0  7544 7544   704 R     3.1  5.9   0:05 rsync
> >18644 root      15   0  1040 1040   832 R     1.1  0.8   0:02 top
> >18557 root      15   0  1740 1680  1428 S     0.1  1.3   0:00 sshd
> >
> >  
> >
> 
>