pastied-the-fully-script.rb

require "rubygems"
require "rbench"

module Foo
  module Bar
    module Baz
    end
  end
end

3_000_000.times do
  Foo
  ::Foo
  Foo::Bar::Baz
  ::Foo::Bar::Baz
end

RBench.run(1_000_000) do
  report("single") {   Foo }
  report("single colon3") { ::Foo }
  report("colon2") {   Foo::Bar::Baz }
  report("colon3") { ::Foo::Bar::Baz }
end