load_ruby_prof (ActionController::RequestProfiler)

    # File lib/action_controller/request_profiler.rb, line 146
          def load_ruby_prof
            begin
              gem 'ruby-prof', '>= 0.6.1'
              require 'ruby-prof'
              if mode = options[:measure]
                RubyProf.measure_mode = RubyProf.const_get(mode.upcase)
              end
            rescue LoadError
              abort '`gem install ruby-prof` to use the profiler'
            end
          end