I have more results from my experiments in RPM delta compression. I've posted the results so far here: http://www.wombat.ie/software/rpmdc/index.shtml Conclusion so far: assuming someone has the distribution RPMs available then an entire update repository (about 1GB) can be generated from 200MB of files. I hope to post my code once I clean it up a bit (it's implemented in Java currently). Must check out rdiff also... Joe. On Sun, 13 Mar 2005 20:44:15 +0000 (GMT), M A Young <m.a.young@xxxxxxxxxxxx> wrote: > > libgcj-4.0.0-0.31.i386.rpm 13942525 > libgcj-4.0.0-0.32.i386.rpm 13950302 > xdelta of rpms 6911651 > same (no compression) 7025625 > xdelta of header + cpio 3723074 > same (no compression) 8604163 > rdiff of rpms 7310525 > same (gzipped) 7159019 > rdiff signature of 1st rpm 81708 > rdiff of header + cpio 17870597 > same (gzipped) 5582770 > rdiff signature 190476 >
