graph_trace: {
    calculator_name : ["ACalculator", "BCalculator"]
    stream_name     : [ "", "input1", "a_b"]
    base_time       : 0
    base_timestamp  : 100

    # Fire off three input packets and have them spend time in Calculator A.
    # Drop the middle packet.

    calculator_trace: {
      node_id: -1
      input_timestamp: 100
      event_type     : PROCESS
      finish_time    : 1000
      output_trace: {
        packet_timestamp: 100
        stream_id       : 1
      }
      thread_id      : 1
    }
    calculator_trace: {
      node_id: -1
      input_timestamp: 101
      event_type     : PROCESS
      finish_time    : 2000
      output_trace: {
        packet_timestamp: 101
        stream_id       : 1
      }
      thread_id      : 1
    }

    calculator_trace: {
      node_id: 0
      input_timestamp: 100
      event_type     : PROCESS
      start_time     : 1200  # 200 after initial input (emits at 1000)
      finish_time    : 1500  # Speed to delivery is 500 (1500 - 1000)
      input_trace: {
        packet_timestamp: 100
        stream_id       : 1
      }
      thread_id      : 1
    }

    calculator_trace: {
      node_id: 0
      input_timestamp: 101
      event_type     : PROCESS
      start_time     : 2100  # 100 after initial input (emits at 2000)
      finish_time    : 2500  # Speed to delivery is 500 (2500 - 2000)
      input_trace: {
        packet_timestamp: 101
        stream_id       : 1
      }
      thread_id      : 1
    }

    calculator_trace: {
      node_id: 1
      input_timestamp: 100
      event_type     : PROCESS
      start_time     : 1600  # 600 after the initial input (emits at 1000)
      finish_time    : 2000  # Speed to delivery is 1000 (2000 - 1000)
      input_trace: {
        packet_timestamp: 100
        stream_id       : 1
      }
      thread_id      : 1
    }

    calculator_trace: {
      node_id: 1
      input_timestamp: 101
      event_type     : PROCESS
      start_time     : 2900  # 700 after the initial input (emits at 2000)
      finish_time    : 3100  # Speed to delivery is 1000 (3000 - 2000)
      input_trace: {
        packet_timestamp: 101
        stream_id       : 1
      }
      thread_id      : 1
    }
}
config: {
  node: {
    name: "ACalculator"
    calculator: "ACalculator"
    input_stream: "input1"
    output_stream: "a_b"
  }
  node: {
    name: "BCalculator"
    calculator: "BCalculator"
    input_stream: "a_b"
  }
}