bench respond to vs rescue NoMethod

gistfile1.rb

#Rehearsal ---------------------------------------
#old   4.600000   0.060000   4.660000 (  4.653225)
#new   0.280000   0.000000   0.280000 (  0.283112)
#------------------------------ total: 4.940000sec
#
#          user     system      total        real
#old   4.620000   0.070000   4.690000 (  4.688474)
#new   0.280000   0.000000   0.280000 (  0.283607)


require 'benchmark'
iteration = 1000000

def test_rescue
  begin
    disabled_method?
  rescue NoMethodError
    true
  end
end

def test_ask
  respond_to?("disabled_method?") ? disabled_method? : true
end


Benchmark.bmbm do |performance|
  performance.report("old") do
    iteration.times do
      test_rescue
    end
  end

  performance.report("new") do
    iteration.times do
      test_ask
    end
  end
end