class Benchmark
  def self.bm(iterations=1)
    puts "BM"
    
    times = []
    total_time = nil
    result = nil
    
    iterations.times do
      start_time = `Date.now()`
      result = yield
      end_time = `Date.now()`
      total_time = `end_time - start_time`
      times << total_time
    end
    
    if iterations == 1
      puts "TOTAL TIME: #{total_time}ms"
    else
      puts "Times: #{times.inspect}"
    end
    
    return result
  end
end