ikiwiki/doc/todo/optimisations.mdwn

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* Render each changed page only once. Currently pages are rendered up to 4
times in worst case (8 times if there's an rss feed).
The issue is that rendering a page is used to gather info like the links
on the page that can effect rendering other pages. So it needs a
multi-pass system. But rendering the whole page in each pass is rather
obscene.
* Don't render blog archive pages unless a page is added/removed. Just
changing a page doesn't affect the archives as they show only the title.
* Look at breaking the relatively rarely used blogging stuff out of
Render.pm, into its own module.
* Look at splitting up CGI.pm. But note that too much splitting can slow
perl down.