Rsync sending complete file?

[Matt McCutchen]

On Sat, 2008-03-01 at 12:51 -0800, Some user wrote:
> its installed and working but i have no idea what im doing wrong.
> The command i'm using:
> 
> #rsync -rv /media/mir1/ /media/mir2/
> 
> Now this works, recursive and verbose.  However it takes approx 2 minutes
> and the output at the end is:
> 
> sent 734973140 bytes  received 42 bytes   10888491.59 bytes/sec
> 
> forgive me if im wrong but that means its sent 734973140 bytes... I thought
> rsync only sent the differences?
> 
> I have looked through --help and found nothing, currently going through the
> 'man' but their examples are dead simple (using no more paramaters than
> mine) and only do changes, how come mine seems to do full file?
> 
> (mir1 and mir2 are on same partition so same type)

Rsync doesn't do delta transfers when the source and destination are
both local because there's no point.  See:

http://lists.samba.org/archive/rsync/2007-September/018603.html

Matt