On Mon, Jan 01, 2001 at 10:44:49PM +0100, Goswin Brederlow wrote:
> Hi,
>
> I just had some thought about improving rsync performance (reducing
> amount of data transfered) when dealing with packed files and would
> like some comments.
>
>
> First what is the problem with packed files?
> --------------------------------------------
>
> Consider two nearly identical files that differ on the first
> character. rsync will do a great job syncing those files.
>
> Now pack both files with gzip and rsync again. The files will differ
> in most, if not all, places and the whole file will be transfered.
>
>
> How can we improve the performance?
> -----------------------------------
Variations on this have come up multiple times on this mailing list in
the last couple years. For reference see threads starting at
http://lists.samba.org/pipermail/rsync/1999-January/000936.html
and
http://lists.samba.org/pipermail/rsync/2000-March/001979.html
It seems doable but a lot of work and nobody has tried.
- Dave Dykstra
