Does Rails have to lazy load everything? Or does it?
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When I notice things like: 0.15s in my specs for a simple method like:

    class String
      def to_slug
        (self.dup).gsub(/["']/, '').gsub(/@/, 'at').gsub(/&/, 'and').parameterize
      end
    end

I start to ask myself what is going on, so after benching the method without parameterize I decided this was a problem inside of parameterize and not necessarily with the method itself but, well, with the way it's loaded, it seems to me like it's lazily loaded when Monkey Patches like that should be eager loaded, it is causing latency where it should not exist IMO.  So my questions are, does Rails really lazily load the file that contains parameterize and is there way to convince Rails to eager load patches to String and other stdlib's.