ActiveRecord vs Sequel (require time)

01-requirements.md

$ brew install cloc
$ bundle install

02-loc.rb

require "yaml"

def lib_dir(gem_name)
  gem = Gem::Specification.find_by_name(gem_name)
  File.join(gem.full_gem_path, gem.require_path)
end

def loc(gem_name)
  output = `cloc #{lib_dir(gem_name)} --yaml`
  yaml = output.lines[6..-1].join("\n")
  YAML.load(yaml)["Ruby"]["code"]
end

sequel_loc = loc("sequel")

activerecord_loc = loc("activerecord") +
                   loc("arel") +
                   loc("activemodel") +
                   loc("squeel")

puts "Sequel LOC: #{sequel_loc}"
puts "ActiveRecord LOC: #{activerecord_loc}"

# Sequel LOC:       31277
# ActiveRecord LOC: 27384

03-require-speed.rb

require "benchmark"
require "sqlite3"

def require_sequel
  require "sequel"
  Sequel.sqlite
end

def require_activerecord
  require "active_record"
  ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
  files("activerecord").grep(/association/).each &method(:require)
  require "squeel"
end

def files(gem_name)
  gem = Gem::Specification.find_by_name(gem_name)
  lib_dir = File.join(gem.full_gem_path, gem.require_path)
  files = Dir["#{lib_dir}/**/*.rb"]
end

puts "Sequel load time:       #{Benchmark.realtime{require_sequel}}"
puts "ActiveRecord load time: #{Benchmark.realtime{require_activerecord}}"

# Sequel load time:       0.08
# ActiveRecord load time: 0.4 (5 times slower)

Gemfile

source "https://rubygems.org"

gem "sqlite3"

gem "sequel", "4.24"

gem "activerecord", "4.2"
gem "squeel"

Why do you require squeel inside the require_activerecord method? If you're benchmarking the require time of both gems I'd assume you only require them.