Require Benchmark

require_benchmark.rb

require 'benchmark'

module Kernel
  alias old_require require

  def require(path)
    output = nil
    @required_files ||= []
    benchmark = Benchmark.measure do
      output = old_require path
    end
    @required_files << [path, benchmark]
    puts path
    output
  end

  def print_require_benchmark_stats
    puts "Printing benchmark stats:"
    @required_files ||= []
    @required_files.sort! { |a, b| b[1].real <=> a[1].real }
    @required_files.each do |path, benchmark|
      puts path
      puts benchmark
    end
  end
end

at_exit { print_require_benchmark_stats }