JSON Serialization Benchmark Ruby/PG

serialization_benchmark.rb

require 'benchmark'

class SerializationBenchmark
  def initialize
    @temp_events = []
  end

  def create_events
    1000.times do |i|
      ev = Event.first.dup
      ev.title += i.to_s
      ev.save(validate: false) # avoid image-related errors
      @temp_events << ev
    end
  end

  def call
    # disable logger
    old_logger = ActiveRecord::Base.logger
    ActiveRecord::Base.logger = nil

    puts 'Creating events...'
    create_events

    Event.extend(EventSerializer)
    Benchmark.bm(7) do |x|
      x.report("ruby")       { Event.ruby_to_json }
      x.report("postgres")   { Event.serialize_to_json }
    end

  ensure
    puts 'Cleaning events...'
    @temp_events.each { |ev| ev.delete }
    ActiveRecord::Base.logger = old_logger
  end
end