13.1. Statistics Module DDS Layer

This section explains the extended DDS API provided for the Statistics Module. First, the Statistics Topic List is presented together with the corresponding collected data. Next, the methods to enable/disable the corresponding DataWriters are explained. Then, the recommended QoS for enabling the DataWriters and creating the user’s DataReaders that subscribe to the Statistics topics are described. Finally, a guide on how to overcome common problems when using the module are presented.

• 13.1.1. Statistics Topic names
  • 13.1.1.1. HISTORY_LATENCY_TOPIC
  • 13.1.1.2. NETWORK_LATENCY_TOPIC
  • 13.1.1.3. PUBLICATION_THROUGHPUT_TOPIC
  • 13.1.1.4. SUBSCRIPTION_THROUGHPUT_TOPIC
  • 13.1.1.5. RTPS_SENT_TOPIC
  • 13.1.1.6. RTPS_LOST_TOPIC
  • 13.1.1.7. HEARTBEAT_COUNT_TOPIC
  • 13.1.1.8. ACKNACK_COUNT_TOPIC
  • 13.1.1.9. NACKFRAG_COUNT_TOPIC
  • 13.1.1.10. GAP_COUNT_TOPIC
  • 13.1.1.11. DATA_COUNT_TOPIC
  • 13.1.1.12. RESENT_DATAS_TOPIC
  • 13.1.1.13. SAMPLE_DATAS_TOPIC
  • 13.1.1.14. PDP_PACKETS_TOPIC
  • 13.1.1.15. EDP_PACKETS_TOPIC
  • 13.1.1.16. DISCOVERY_TOPIC
  • 13.1.1.17. PHYSICAL_DATA_TOPIC
• 13.1.2. Statistics Domain Participant
  • 13.1.2.1. Enable statistics DataWriters
  • 13.1.2.2. Disable statistics DataWriters
  • 13.1.2.3. Obtain pointer to the extended DomainParticipant class
  • 13.1.2.4. Example
  • 13.1.2.5. Automatically enabling statistics DataWriters
• 13.1.3. Statistics recommended QoS
  • 13.1.3.1. Statistics DataWriter recommended QoS
  • 13.1.3.2. Statistics DataReader recommended QoS
• 13.1.4. Troubleshooting
  • 13.1.4.1. Monitoring application is not receiving any statistic data