Did you compile from the sources, or did you grab the cygwin binary?

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).

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





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