[Answered ]-Django's templatetag "cache" doesn't cache the queryset in template

First place I would check is the view which loads that template. Are you doing a query in the view to populate article_list?

If so, then your template cache may be working but you’re still hitting the database to generate a queryset that’s not being used.

If that’s the case, the simplest solution would be to look at setting up per-view caches.