benchmark_msgpack_and_json.rb

#!/usr/bin/env ruby

require 'redis'
require 'json'
require 'msgpack'
require 'benchmark'

# mock event
event = {
  'host' => 'app-01',
  'service' => 'http',
  'type' => 'service',
  'state' => 'critical',
}

redis = Redis.new
redis.ltrim('bm_events', 0, 0) # reset the list

# number of iterations
i = 100_000

5.times do
  Benchmark.bm(14) do |x|
    x.report("json encode") do
      i.times { redis.rpush 'bm_events', event.to_json }
    end
    x.report("json decode") do
      i.times { JSON.parse(redis.blpop('bm_events').last) }
    end
    x.report("msgpack encode") do
      i.times { redis.rpush 'bm_events', event.to_msgpack }
    end
    x.report("msgpack decode") do
      i.times {
        MessagePack.unpack(redis.blpop('bm_events').last)
      }
    end
  end
  puts
end

gistfile1.txt

                     user     system      total        real
json encode      8.190000   2.180000  10.370000 ( 19.493059)
json decode     12.010000   2.260000  14.270000 ( 23.440085)
msgpack encode   6.430000   2.080000   8.510000 ( 16.520134)
msgpack decode   9.410000   2.250000  11.660000 ( 23.494708)

                     user     system      total        real
json encode      7.820000   2.210000  10.030000 ( 23.738877)
json decode     10.730000   2.350000  13.080000 ( 22.935052)
msgpack encode   6.040000   2.080000   8.120000 ( 15.902375)
msgpack decode   9.380000   2.230000  11.610000 ( 21.427978)

                     user     system      total        real
json encode      7.910000   2.190000  10.100000 ( 18.816562)
json decode     10.390000   2.310000  12.700000 ( 21.777471)
msgpack encode   6.290000   2.140000   8.430000 ( 15.964847)
msgpack decode   9.260000   2.220000  11.480000 ( 23.721213)

                     user     system      total        real
json encode      7.660000   2.150000   9.810000 ( 19.705456)
json decode     10.940000   2.400000  13.340000 ( 24.731049)
msgpack encode   6.180000   2.120000   8.300000 ( 16.808059)
msgpack decode   9.210000   2.190000  11.400000 ( 20.932655)

                     user     system      total        real
json encode      7.660000   2.150000   9.810000 ( 18.501270)
json decode     10.440000   2.310000  12.750000 ( 23.546371)
msgpack encode   6.270000   2.140000   8.410000 ( 16.736538)
msgpack decode   9.380000   2.210000  11.590000 ( 21.135084)

Yajl might be faster https://github.com/brianmario/yajl-ruby/

Yeah, it would be, but I just wanted to benchmark what was in the Ruby stdlib vs an outside library.

There's not enough of a speed improvement to warrant pulling in an external dependency.