Rsync Performance In Windows
greger_cronquist at yahoo.se
Tue Jun 17 05:42:02 EST 2003
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
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
_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
>CPU states: 1.5% user, 3.1% system, 0.0% nice, 95.2% idle
>Mem: 126636K av, 124008K used, 2628K free, 0K shrd, 26580K
>Swap: 1020560K av, 7360K used, 1013200K free 32044K
> 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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