OpenStruct Performance Test

ostruct_context_bench.rb

require "benchmark"
require "ostruct"

BadContext = Class.new(OpenStruct)

class BetterContext
  attr_accessor :a, :b, :c, :d, :e, :f
end

def test_it(klass, &b)
  10_000.times do
    context = klass.new
    ("a".."f").each do |value|
      yield context, value
    end
  end
end

Benchmark.bm do |x|
  x.report("bad context") do
    test_it(BadContext) do |context, value|
      context.public_send("#{value}=", value)
    end
  end

  x.report("better context") do
    test_it(BetterContext) do |context, value|
      context.public_send("#{value}=", value)
    end
  end

  x.report("hash") do
    test_it(Hash) do |context, value|
      context[value] = value
    end
  end
end