alakazam_bench.rb

require 'benchmark'
require 'observer'
require 'alakazam'

class Logger
  def update(*things)
    #
  end
end

class ObservableImplementation
  include Observable

  def do
    changed
    notify_observers hurr: 'durr'
  end
end

class AlakazamImplementation
  include Alakazam
  extend Alakazam

  def do
    fire!
    fire hurr: 'durr'
  end
end

iterations = 1000_000

Benchmark.bm(27) do |bm|
  bm.report('observable') do
    iterations.times {
      implementation = ObservableImplementation.new
      implementation.add_observer Logger.new
      implementation.do
    }
  end

  bm.report('alakazam') do
    iterations.times {
      implementation = AlakazamImplementation.new
      implementation.add_observer Logger.new
      implementation.do
    }
  end
end