lør, 12.03.2005 kl. 15.43 skrev M A Young: > On Fri, 11 Mar 2005, Jeff Johnson wrote: > > > This patch > > https://svn.uhulinux.hu/packages/dev/zlib/patches/02-rsync.patch > > is in rpm-4.4.1 and on by default. > > > > If the payloads in FC4 are not rsyncable right now, then it's because > > beehive is using an > > older version of rpm ... checking ... yep, current rpm payloads should > > be rsync ready: > > > > $ rpm -q --qf '%{rpmversion}\n' perl > > 4.4.1 > > It seems the option isn't active for FC3 and its updates (which is what I > had tested) so I have repeated the test with a couple of RPMs from > different rawhide mirrors using xdelta, which uses a similar algorithm to > rsync, and found the following sizes > > libgcj-4.0.0-0.31.i386.rpm 13942525 > libgcj-4.0.0-0.32.i386.rpm 13950302 > xdelta of rpms 6911651 > xdelta of header + cpio 3723074 > > thus there is a significent saving in size for small changes, though you > can do even better with more processing. Also from my experience with > openoffice rpm library rpms don't diff as well as other packages, so the > typical saving might be better than this example. > > Michael Young Just wondering: Are you doing the diffs on the data the package contains, or the compressed version of it?
