Extend vs Include in Metaclass

gistfile1.rb

module M
  def foo
    puts "M#foo"
  end
end

class C
end


n = 150000


t1 = Time.now
n.times do
  c = C.new
  c.extend M
end
t2 = Time.now
extend_time = t2 - t1
puts extend_time



class C
  def metaclass; class << self; self; end; end

  def meta_eval &blk; metaclass.instance_eval &blk; end

  def meta_include(mod)
    meta_eval { include mod }
  end
end


t1 = Time.now
n.times do
  c = C.new
  c.meta_include M
end
t2 = Time.now
meta_include_time = t2 - t1
puts meta_include_time

puts meta_include_time / extend_time