gistfile1.rb

require "yaml"
require "benchmark"

class SomeClass
  def initialize(value)
    @value = value
  end
end

hash = {
  :symbol       => "symbol value",
  "text"        => "text value",
  123           => ["asd", :asd, 123],
  :class        => SomeClass.new(["asd", 123]),
  [123, "asd"]  => Array.new(10){|i| SomeClass.new(i) }
}

CYCLES = 10000

Benchmark.bm(20) do |bm|
  bm.report("Marshal dump") do
    CYCLES.times do
      @marshal_code = Marshal.dump(hash)
    end
  end

  bm.report("Marshal load") do
    CYCLES.times do
      Marshal.load(@marshal_code)
    end
  end

  bm.report("YAML dump") do
    CYCLES.times do
      @yaml_code = YAML.dump(hash)
    end
  end

  bm.report("YAML load") do
    CYCLES.times do
      YAML.load(@yaml_code)
    end
  end
end