# 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