# File lib/active_record/base.rb, line 1384
      def benchmark(title, log_level = Logger::DEBUG, use_silence = true)
        if logger && logger.level <= log_level
          result = nil
          seconds = Benchmark.realtime { result = use_silence ? silence { yield } : yield }
          logger.add(log_level, "#{title} (#{'%.1f' % (seconds * 1000)}ms)")
          result
        else
          yield
        end
      end