On Mon, May 28, 2012 at 12:27 PM, Nelson Marques
The funny thing is I haven't seen that huge compression ratio improvement in source tarballs. Must be something specific to xml.
The LZMA algorythm kicks a$$. In UH it readuces the sources from 170Mbs to 120Mb ;) GNOME is using now xz, and rpm 4.10.0 supports it natively. It's coming dude :)
Not that much - I've studied the algorithm a while ago and it really needs a very long input string to converge towards optimal entropy. I think it has something to do with xml's limited vocabulary (very few symbols in the language's alphabet) that makes it converge faster than other algorithms. In any case, I digress. My point, 170 vs 120 is a lot less than 7.7 to 2.2. One is a (significant, but slight) 30% reduction, when the other is a three-fold reduction. It still can't beat the "order of magnitude" kind of reduction that would be achievable by shipping deltas. -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org