Benchmark OpenStruct

gistfile1.rb

require 'benchmark'
require 'dry-struct'
require 'ostruct'
require 'hashie'
require 'active_support'

class ClassCar
  attr_accessor :wheels, :mileage
end

car_struct = Struct.new(:wheels, :mileage)

module Types
  include Dry.Types()
end
class DryCar < Dry::Struct
  attribute :wheels, Types::Integer
  attribute :mileage, Types::Integer
end

iterations = 250_000

Benchmark.bmbm(10) do |b|
  b.report("OStruct") do
    items = []
    iterations.times do
      car = OpenStruct.new
      car.wheel = 4
      car.mileage = rand((1..100))
      items << car
    end

    items.each { |item| item.mileage }
  end

  b.report("Class") do
    items = []
    iterations.times do
      car = ClassCar.new
      car.wheels = 4
      car.mileage = rand((1..100))
      items << car
    end

    items.each { |item| item.mileage }
  end

  b.report("Struct") do
    items = []
    iterations.times do
      items << car_struct.new(4, rand((1..100)))
    end

    items.each { |item| item.mileage }
  end

  b.report("OrderedOptions") do
    items = []
    iterations.times do
      car = ActiveSupport::OrderedOptions.new
      car.wheels = 4
      car.mileage = rand((1..100))
      items << car
    end

    items.each { |item| item.mileage }
  end

  b.report("Hash") do
    items = []
    iterations.times do
      items << { wheels: 4, mileage: rand((1..100)) }
    end

    items.each { |item| item[:mileage] }
  end

  b.report("DryStruct") do
    items = []
    iterations.times do
      items << DryCar.new(wheels: 4, mileage: rand((1..100)))
    end

    items.each { |item| item.mileage }
  end

  b.report("Hashie") do
    items = []
    iterations.times do
      items << Hashie::Mash.new(wheels: 4, mileage: rand((1..100)))
    end

    items.each { |item| item.mileage }
  end

  items = []
  b.report("Array") do
    iterations.times do
      items << [4, rand((1..100))]
    end

    items.each { |item| item[1] }
  end
end