Delayed Job without Rails

delayed_job.rb

ENV["DATABASE_URL"] = 'postgresql://postgres@localhost/my_database?encoding=utf8'

module Rails
  extend self

  def root
    File.dirname(File.expand_path('..', __FILE__))
  end

  def logger
    @logger ||= Logger.new $stdout
  end
end

require 'bundler/setup'
require 'delayed_job'
require 'delayed/command'
require 'active_record'

Delayed::Worker.backend = :active_record

Delayed::Command.new(ARGV).daemonize

Gemfile

source 'https://rubygems.org'

gem 'delayed_job'
gem 'delayed_job_active_record'
gem 'daemons'
gem 'pg'

stop_and_start_time

$ time ./bin/delayed_job start

real  0m2.151s
user	0m1.763s
sys	0m0.343s

$ time ./bin/delayed_job stop
delayed_job: trying to stop process with pid 1337...
delayed_job: process with pid 1337 successfully stopped.

real	0m3.673s
user	0m1.724s
sys	0m0.222s