I used rsync for the first time today. A nice program. I copied the XEmacs CVS repository rsync --rsh=ssh -a -v -v --rsync-path=bin/rsync cvs.xemacs.org:/usr/CVSroot/. CVSroot ... wrote 194832 bytes read 262971722 bytes 80812.70 bytes/sec total size is 262218477 speedup is 1.00 make 329.40s user 47.65s system 11% cpu 54:16.15 total Then I did it again: ... wrote 8712 bytes read 254629 bytes 2646.64 bytes/sec total size is 262218938 speedup is 995.74 make 2.51s user 3.38s system 5% cpu 1:39.95 total Then with no verbosity: make 2.03s user 2.11s system 15% cpu 26.632 total So it is quite reasonable to mirror the XEmacs CVS repository via this protocol to other mirror sites. Commits will continue to have to be done to the one true master repository, even if we mirror.