I was wondering how fast the different dynamic method dispatching options in ruby are. After doing this, I guess I shouldn't be surprised. My assumption is that the method object call is slower since we're actually instantiating an object..

dynamic_methods.rb

require 'benchmark'

class TestMethodCall
  def test
    100 + 100
  end
end

Benchmark.benchmark("Dynamic method calling\n") do |x|
  instance = TestMethodCall.new

  x.report('__send__') do
    1_000_000.times { instance.__send__(:test) }
  end

  x.report('method object call') do
    1_000_000.times { instance.method(:test).call }
  end
end

out.txt

Dynamic method calling
__send__  0.220000   0.000000   0.220000 (  0.234082)
method object call  0.900000   0.060000   0.960000 (  1.474704)