# File lib/new_relic/agent/busy_calculator.rb, line 40
      def dispatcher_finish(end_time = nil) #THREAD_LOCAL_ACCESS
        state = TransactionState.tl_get
        # If #dispatcher_start hasn't been called at least once, abort early
        return unless state.busy_entries

        end_time ||= time_now
        callers = state.busy_entries -= 1

        # Ignore nested calls
        return if callers > 0

        @lock.synchronize do
          if @entrypoint_stack.empty?
            ::NewRelic::Agent.logger.warn("Stack underflow tracking dispatcher entry and exit!\n  #{caller.join("  \n")}")
          else
            @accumulator += (end_time - @entrypoint_stack.pop).to_f
          end
        end
      end