Comment # 9 on bug 1202796 from Michael Andres

(In reply to Jonathan Kang from comment #8)
(In reply to Jonathan Kang from comment #8)
> This is called by GNOME Software, which tries to search some application
> metadata files. Simply searching a file shouldn't take much time, but the
> current implementation of this in PK's zypp backend calls refresh-cache. So
> this might take some time to finish.

AFAIK zypp calls the appdata plugin at the end of any refresh IFF new metadata
were downloaded for a repo. So they trigger metadata refreshes every 20 sec. or
so, just so check for new software? Sounds like a waste of resources to me.