JSON vs. Msgpack benchmark

gistfile1.rb

#!/usr/bin/env ruby

# JRuby
# gem install msgpack-jruby

# MRI
# gem install msgpack

require 'benchmark'

COUNT = ARGV[0].to_i || 10

hash = {
  wat: 'is this ' * 100,
  nested: [{ element: 'x'*rand(10), wat: { is: 'this' } }]*100
}

Benchmark.bm do |x|
  x.report('msgpack') do
    require 'msgpack'
    COUNT.times do
      pack = MessagePack.pack(hash)
      MessagePack.unpack(pack)
    end
  end

  x.report('json   ') do
    require 'json'
    COUNT.times do
      json = JSON(hash)
      JSON.parse(json)
    end
  end
end

~/Code ❯❯❯ ./msgpack_json_benchmark.rb 10
             user     system      total        real
msgpack  0.860000   0.050000   0.910000 (  0.468000)
json     0.270000   0.010000   0.280000 (  0.144000)

/Code ❯❯❯ ./msgpack_json_benchmark.rb 10000
             user     system      total        real
msgpack  4.230000   0.110000   4.340000 (  3.668000)
json    10.380000   0.060000  10.440000 ( 10.120000)