Benchmark require time

application.rb

@timer = Time.now
def log(line)
  puts "#{(Time.now - @timer).round(4)} #{line}"
  @timer = Time.now
end

module Kernel
  def require_logged(required, *args)
    puts "require(#{required})"
    require_not_logged(required, *args)
  end
  alias :require_not_logged :require
  alias :require :require_logged
  def load_logged(required, *args)
    puts "load(#{required})"
    load_not_logged(required, *args)
  end
  alias :load_not_logged :load
  alias :load :load_logged
end