Performance Benchmark for Refactoring of class_attribute Method

gistfile1.rb

require 'active_support/core_ext/class/attribute.rb'
require 'benchmark'

NUM_TRIALS = 1000000

Benchmark.bm(25) do |x|
  x.report("Defining attribute") do
    NUM_TRIALS.times do
      class MyClass
        class_attribute :my_attribute
      end
    end
  end

  x.report("Accessing attribute") do
    NUM_TRIALS.times do
      MyClass.my_attribute = 5
      MyClass.my_attribute = 10
    end
  end

  class MySubClass < MyClass; end

  x.report("Accessing attribute (Subclass)") do
    NUM_TRIALS.times do
      MySubClass.my_attribute = 10
      MySubClass.my_attribute = 15
    end
  end
end