Application::Benchmarking Help

Need some help getting the ActionController::Benchmarking module to
work…

I try just using

benchmark (‘My Benchmark’, Logger::WARN) {

}

in my controller but I get undefined method…

I try require ‘benchmarking’ and require
‘action_contoller/benchmarking’, but it cant find that file…

I try include ActionController::Benchmarking but Benchmarking is an
uninitialized constant…

action_controller.rb freaking has these 2 lines in it, so I just don’t
get why it isn’t working:

require ‘action_controller/benchmarking’
ActionController::Base.class_eval do
include ActionController::Benchmarking
end

What the hell am I doing wrong here? My Controller is just standard
derived from ApplicationController.

Any help would be appreciated…