Ikiwiki has already been optimised a lot, however..

  • Look at splitting up CGI.pm. But note that too much splitting can slow perl down.

    It's split enough, or possibly more than enough, now. :-)

  • The backlinks calculation code is still O(N^2) on the number of pages. If backlinks info were stored in the index file, it would go down to constant time for iterative builds, though still N^2 for rebuilds.

    Seems to be O(Num Pages * Num Links in Page), or effectively O(N) pages for most wikis.