apt repository usage

["Brian Eaton" <eaton.lists@gmail.com>]

Hello -

I'm interested in doing some log file analysis on apt repositories. 
Anybody willing to share logs?

More specifically, I'd like to try to figure out what percentage of
apt repository bandwidth goes to upgrading packages versus installing
brand new packages.  If a lot of bandwidth is being used for upgrading
packages, maybe there is some way to make the process more efficient. 
I've stumbled across some threads discussing using rsync as an apt
backend, for example:

http://lists.debian.org/debian-devel/2003/07/msg00462.html

The main objection to using rsync seems to be that it increases the
CPU usage on the file server.  However, full fledged rsync shouldn't
be necessary.  If you know the two files to be synchronized in
advance, then you could do the CPU intensive work up front.  You could
prepare a patch-like binary format that apt clients could then use to
update an older copy of the package.

I'm not certain whether this is worth doing, which is why I'm
interested in having a look at apt repository usage.  I realize there
may be some privacy concerns about sharing the log files.  I hope we
can work something out to remove personally identifiable information
from the logs while still leaving the important data intact.

Regards,
Brian