Revision 482

  * So we (culus, tausq, joeyh) did some benchmarking, and figured out how
    to speed up dpkg-preconfigure by about 3x. It turns out most of the
    existing overhead was in calls to dpkg-deb, which is slow, and in all
    the forking necessary to do said calls, which is also slow. So we moved
    the initial package scanning out into a C++ program which links to apt
    code and is quite fast. (Sadly, it's also quite big, and has bloated
    debconf by 30k and made it arch-dependent.) Anyway, I guess it's worth
    it to save a few seconds.

Not uploading yet, I want to sit on this at least overnight. Bod may yet
save us all ;-)