[Yum] metadata compression

[Duncan Mac-Vicar P.]

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Ville Skyttä wrote:
> IMHO it is fair enough to let people with such corner cases know that they'll 
> be served with XML metadata or need to upgrade their depsolver (or install 
> another copy on the side of the distro one for this purpose).

For openSUSE the results are quite interesting, as we download the raw
metadata and parse it locally. Our parsing is much faster than sqlite,
but now our bottleneck is download size of big update repositories and
Factory (equivalent to Rawhide).

I also did some measurements with our repos, and also parsing time
(adding support for reading lzma repos was piececake)

http://duncan.mac-vicar.com/blog/archives/537

(the original thread is linked there for people CCed)

Cheers
Duncan
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