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![Connext
DDS
Professional
Connext
DDS
Product
Family
February
27,
2014
©
2014
REAL-‐TIME
INNOVATIONS,
INC.
DDS-‐RTPS
Wire
Interoperability
Protocol
DDS
&
JMS
Libraries
RouTng
Service
Database
IntegraTon
Connext
DDS
Micro
Connext
DDS
Cert
AdministraTon
Monitoring
Microso]
Excel
Recording
Replay
Wireshark
Persistence
Logging
Prototyper
General
Purpose
Real-‐Time
Apps
Remote
Apps
Disparate
Apps
Adapter
Small
Footprint
Apps
High
Assurance
Apps
(DO-‐178C)
5](https://image.slidesharecdn.com/rticonnext-150902212602-lva1-app6892/75/RTI-Connext-5-1-0-5-2048.jpg)
![Turbo
Mode
(Experimental)
• As
sending
rate
changes,
automaTcally
adjusts
QoS
to
maintain
opTmal
performance
• Improves
performance
in
burst
traffic
scenario
– High
throughput
at
high
sending
rate
– Low
latency
at
slow
sending
rate
• Supported
by
new
per]est
• hhp://community.rT.com/downloads/rT-‐connext-‐dds-‐
performance-‐test
February
27,
2014
©
2014
REAL-‐TIME
INNOVATIONS,
INC.
22](https://image.slidesharecdn.com/rticonnext-150902212602-lva1-app6892/75/RTI-Connext-5-1-0-22-2048.jpg)
![Prototyper
with
LUA
(Experimental)
XML
Sexngs
Prototyper
(“Container”)
Lua
Engine
DDS
Lua
Component
1. ##$Interface:$parameters,$inputs,$outputs$
2. local$A,$B,$C$=$30,$30,$10$##$Change$the$'C'$parameter$to$to$see$various$flower$shapes$$
3. local$ShapeWriter$=$CONTAINER.WRITER[3]$##$Triangles$
4. $
5. ##$Global$counter$(preserved$across$invocations)$$$
6. if$not$count$then$count$=$0$else$count$=$count$+$1$$end$$$
7. $
8. local$shape$=$ShapeWriter.instance;$
9. local$angle$=$count$%$360;$
10. $
11. shape['x']$$$$$$$$$=$120$+$(A+B)$*$math.cos(angle)$+$B$*$math.cos((A/B#C)*angle)$$$
12. shape['y']$$$$$$$$$=$120$+$(A+B)$*$math.sin(angle)$+$B$*$math.sin((A/B#C)*angle)$
13. $
14. shape['shapesize']$=$5$
15. shape['color']$=$"RED"$
16. $
17. ShapeWriter:write()$
$
February
27,
2014
©
2014
REAL-‐TIME
INNOVATIONS,
INC.
42](https://image.slidesharecdn.com/rticonnext-150902212602-lva1-app6892/75/RTI-Connext-5-1-0-42-2048.jpg)
Uploaded byJan Van Bruaene
RTI Connext 5.1.0
The document discusses new features in Connext DDS Professional 5.1 that aim to address challenges of scaling intelligent systems to the Internet of Things (IoT). Key updates include enabling content filter propagation through routing services to reduce bandwidth usage, using IOCP for enhanced TCP transport scalability on Windows, and support for extensible types to allow dynamic upgrades while maintaining backward compatibility. These features help improve scalability, extensibility, and adaptability of distributed IoT applications.
More Related Content
RTI Connext 5.1.0
- 1. Your systems. Working as one. Connext DDS 5.1: Scale Intelligent Systems to the Internet of Things February 27, 2014
- 2. Topics • Intelligent Systems • Role of Connext DDS • Driver: Internet of Things • New in Connext DDS 5.1 • Next Steps February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 2
- 3. Intelligent Systems February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 3
- 4. Connext DDS: CommunicaTons PlaVorm for Intelligent Systems Real-‐Time AnalyTcs & Control Operator HMI Sensors Actuators IT / Cloud / SoS IntegraTon Network / Bus / IPC February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 4
- 5. Connext DDS Professional Connext DDS Product Family February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. DDS-‐RTPS Wire Interoperability Protocol DDS & JMS Libraries RouTng Service Database IntegraTon Connext DDS Micro Connext DDS Cert AdministraTon Monitoring Microso] Excel Recording Replay Wireshark Persistence Logging Prototyper General Purpose Real-‐Time Apps Remote Apps Disparate Apps Adapter Small Footprint Apps High Assurance Apps (DO-‐178C) 5
- 6. Broad Interoperability for Heterogeneous Systems • Programming languages and environments – C, C++, C#/.NET, Java, Ada – LabVIEW, MATLAB, Simulink, UML • OperaTng systems – Windows, Linux, Unix, Mac OS – Embedded, real Tme, parTToned – Mobile • Processor families – x86, ARM, PowerPC… – 32-‐ and 64-‐bit • Transport types – Shared memory – LAN (incl. mulTcast) – WAN – Wireless – Low bandwidth February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 6
- 7. Trend: Internet of Things (IoT) • ConnecTng more devices, applicaTons and systems • To each other, data center, cloud February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 7
- 8. IoT Benefits Sharing more data across devices and applicaTons for beher: • SituaTonal awareness, decision making • AutomaTon, responsiveness, efficiency • Asset uTlizaTon • PaTent safety, clinician efficiency • Energy efficiency, reliability February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 8
- 9. IoT in PracTce Actuators Sensors AnalyTcs, control HMI Actuators Sensors AnalyTcs, control HMI Actuators Sensors AnalyTcs, control HMI AnalyTcs, control HMI Centralized analyTcs Decentralized devices, analyTcs, control February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 9
- 10. IoT Challenges • Scalability – aggregate data volumes • Extensibility – incremental evoluTon • Adaptability – can’t characterize performance at dev Tme • Debugability Actuators Sensors AnalyTcs, control HMI Actuators Sensors AnalyTcs, control HMI Actuators Sensors AnalyTcs, control HMI AnalyTcs, control HMI February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 10
- 11. Introducing Connext DDS Professional 5.1 February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 11
- 12. RouTng Service Content Filter PropagaTon • Reduce bandwidth and CPU uTlizaTon in a hierarchical system where DataReaders subscribe to a subset of data • DataWriter and RouTng Service only publish data that is subscribed February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. RouTng Service Apps Devices RouTng Service Apps Devices RouTng Service Apps Devices RouTng Service 12
- 13. RouTng Service – Content Filter PropagaTon Connext DDS 5.1 Prior to 5.1 February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. DataReader DataWriter RS1 X = 1 DataReader X > 5 DataReader X = 7 DataWriter CommunicaTon direcTon 1 2 3 4 1 1 2 3 4 RSN RS2 DataReader DataWriter RS1 X = 1 DataReader X > 5 DataReader X = 7 DataWriter CommunicaTon direcTon 1 2 3 4 1 RSN 1 X =1 or X > 5 or X = 7 Filter propagaTon direcTon Sample filtering Sample filtering RS1 13
- 14. Enhanced TCP Transport Scalability using I/O CompleTon Ports (IOCP) Connext DDS 5.0 Connext DDS 5.1 Asynchronous I/O operaTon using IOCP API Windows server Windows server clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients clients Synchronous I/O operaTon using Select () API >1500 clients ~ 600 clients • To enable IOCP simply set the property socket_monitoring_kind in TCP plugin to WINDOWS_IOCP Supports far more TCP connecTons in Windows-‐based deployments February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 14
- 15. Extensible Types (DDS-‐XTypes) • Enables dynamic upgrades • Types can evolve while maintaining backward interoperability • EssenTal for large and mission-‐criTcal systems FINAL • Can’t be modified or derived • All primiTve fields are final EXTENSIBLE <default> • Type can be extended, but not modified • Extensions can only appear at the end of the type definiTon MUTABLE • Type can be reordered and/or modified February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 15
- 16. Extensible Types February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. @Extensibility(Extenisble_EXTENSIBILITY) struct TrackData { long id; //@ID 1 long x; //@ID 2 long y; //@ID 3 }; @Extensibility(Extensible_EXTENSIBILITY) struct TrackData { long id; //@ID 1 long x; //@ID 2 long z; //@ID 4 long y; //@ID 3 }; @Extensibility(Extensible_EXTENSIBILITY) struct TrackData { long id; //@ID 1 long x; //@ID 2 long y; //@ID 3 }; @Extensibility(Extensible_EXTENSIBILITY) struct TrackData { long id; //@ID 1 long x; //@ID 2 long y; //@ID 3 long z; //@ID 4 }; Connext DDS 5.0 16
- 17. @Extensibility(Mutable_EXTENSIBILITY) struct TrackData { long id; //@ID 1 long x; //@ID 2 long y; //@ID 3 }; @Extensibility(Mutable_EXTENSIBILITY) struct TrackData { long id; //@ID 1 long x; //@ID 2 long y; //@ID 3 long z; //@ID 4 }; Connext DDS 5.1 @Extensibility(Mutable_EXTENSIBILITY) struct TrackData { long id; //@ID 1 long x; //@ID 2 long y; //@ID 3 }; @Extensibility(Mutable_EXTENSIBILITY) struct TrackData { long id; //@ID 1 long x; //@ID 2 long z; //@ID 4 long y; //@ID 3 }; Note: 4-‐byte or 12-‐byte per member extra overhead on the wire. Mutable Types February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 17
- 18. XTypes: OpTonal Members February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. @Extensibility(MUTABLE_E XTENSIBILITY) struct TrackData { long id; long x; long y; long z; //@OpTonal }; typedef struct TrackData { DDS_Long id; DDS_Long x; DDS_Long y; DDS_Long * z; }; NULL value means there is no value because logically the value is not there C/C++ Bandwidth overhead per member FINAL/EXTENSIBLE MUTABLE SET 4/12-‐byte HEADER + VALUE 4/12-‐byte HEADER + VALUE NOT SET 4/12-‐byte HEADER 0-‐byte Supports scenarios in which data type member value is not known or does not exist 18
- 19. BuilTn QoS Profile February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. • Facilitate configuraTon for common scenarios and use cases • Reduce configuraTon effort vs. sexng individual QoS parameters • Total of 34 QoS Profiles as part of the core library • Can be extended and expanded as new features developed and new use cases idenTfied 19
- 20. BuilTn QoS Profiles BASELINE_ ROOT BASELINE_ 5_0_0 BASELINE BASELINE_ 5_1_0 GENERIC_ COMMON GENERIC_ MONITORING GENERIC__ CONNEXT_MICRO _COMPATIBILITY GENERIC_ CONNEXT_OTHER DDS_VENDOR_ COMPATIBILITY Baseline Generic PERIODIC_DATA RELIABLE_ STREAMING STREAMING EVENT STATUS ALARM_EVENT ALARM_STATUS LAST_VALUE_ CACHE PaRern Experimental KEEP_LAST_RELIABLE_ TRANSIENT_LOCAL KEEP_LAST_RELIABLE_ TRANSIENT KEEP_LAST_RELIABLE_ PERSISTENT STRICT_RELIABLE_LARGE_ DATA_FAST_FLOW STRICT_RELIABLE_LARGE_ DATA_MEDIUM_FLOW STRICT_RELIABLE_LARGE_ DATA_SLOW_FLOW KEEP_LAST_RELIABLE_ LARGE_DATA_FAST_FLO W KEEP_LAST_RELIABLE_LAR GE_DATA_MEDIUM_ FLOW KEEP_LAST_RELIABLE_ LARGE_DATA_SLOW_ FLOW STRICT_RELIABLE BEST_EFFORT KEEP_LAST_ RELIABLE STRICT_RELIABLE_ HIGH_THROUGHPUT STRICT_RELIIABLE_LOW _LATENCY Basic Durability PARTICIPANT_ LARGE_DATA PARTICIPANT_LARGE_ DATA_MONITORING STRICT_RELIABLE_ LARGE_DATA KEEP_LAST_RELIABLE_ LARGE_DATA AUTO_TUNING Large Data Performance Large Data with Flow Control February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 20
- 21. Improved Default Transport Sexngs • Improves out-‐of-‐box performance • Minimizes need for tuning • Default QoS profile available to enable backward compaTble with 5.0.0 February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 21
- 22. Turbo Mode (Experimental) • As sending rate changes, automaTcally adjusts QoS to maintain opTmal performance • Improves performance in burst traffic scenario – High throughput at high sending rate – Low latency at slow sending rate • Supported by new per]est • hhp://community.rT.com/downloads/rT-‐connext-‐dds-‐ performance-‐test February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 22
- 23. Auto Throhle (Experimental) • Improves latency and jiher in high throughput condiTons • AutomaTcally adjusts DataWriter send rate and send window size in reliable communicaTons using protocol feedback: – Send window occupancy to control the send rate – NACK messages to control the send window size • Tradeoff – May increase CPU usage in sending machine (acTve wait) – Slightly reduces throughput for small data sizes (<10%) February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 23
- 24. Auto Throhle Performance 0 5000 10000 15000 20000 25000 30000 0 10000 20000 30000 40000 50000 60000 Latency in Microseconds Message Size (bytes) Auto ThroRle disabled Average Minimum 99% 0 5000 10000 15000 20000 25000 30000 0 10000 20000 30000 40000 50000 60000 Latency in Microseconds Message Size (bytes) Auto ThroRle enabled Average Minimum 99% February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 24
- 25. Recording Service: Flexible Field SelecTon February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. Pre 5.1… What the user really cares about What we store by default, apart from user-‐data 25 columns of metadata 25
- 26. Recording Service: Flexible Field SelecTon February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 2 columns of metadata Now (5.1.0) … What the user really cares about What we also store in the DB by default 26
- 27. Recording Service: Flexible Field SelecTon Users can now select what SampleInfo fields to store with their recorded data February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 27
- 28. Admin Console Enhancements February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. Eclipse RCP DDS Admin Console Infrastructure System Control (5.0) System Awareness (5.1) Debugging (5.1) 28
- 29. Admin Console Features 5.0 • Physical View • System Editor • Processes View • Host View • Process Editor • RouTng Service Editor • Persistence Editor • Recording Service Editor • Replay Service Editor • XML Editor 5.1 • Auto Join • DDS Logical View • Health and Match Analyses • DDS QoS View • Domain Topic • DDS Data Type View • System Log • Resource Charts for Host and RouTng Service February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 29
- 30. Auto Join February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. Domains Joined: 6 8 , 6 , 8 0 30
- 31. DDS Logical View This view presents a hierarchical view of the system from a DDS perspecTve. It shows a list of DDS domains and the topics within them. Each enTty has a badge to represent its health. February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 31
- 32. Health & System Health The Health View makes it simple to tell if a system enTty is known to have exisTng problems. February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 9 condiTons are evaluated to determine health. 32
- 33. Real-‐Tme Match Analyses February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 33
- 34. QoS February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 34
- 35. Topic February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 35
- 36. Topic February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 36
- 37. Topic February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 37
- 38. DDS Data Type View February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. Hierarchical view of a data type used by a DDS DataWriter or DataReader The equivalent IDL is also available. 38
- 39. System Log February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. Combined log from all applicaTons using Distributed Logger. 39
- 40. RouTng Service: Resources Chart February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. Similar view for Host 40
- 41. Extended Process InformaTon February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 41
- 42. Prototyper with LUA (Experimental) XML Sexngs Prototyper (“Container”) Lua Engine DDS Lua Component 1. ##$Interface:$parameters,$inputs,$outputs$ 2. local$A,$B,$C$=$30,$30,$10$##$Change$the$'C'$parameter$to$to$see$various$flower$shapes$$ 3. local$ShapeWriter$=$CONTAINER.WRITER[3]$##$Triangles$ 4. $ 5. ##$Global$counter$(preserved$across$invocations)$$$ 6. if$not$count$then$count$=$0$else$count$=$count$+$1$$end$$$ 7. $ 8. local$shape$=$ShapeWriter.instance;$ 9. local$angle$=$count$%$360;$ 10. $ 11. shape['x']$$$$$$$$$=$120$+$(A+B)$*$math.cos(angle)$+$B$*$math.cos((A/B#C)*angle)$$$ 12. shape['y']$$$$$$$$$=$120$+$(A+B)$*$math.sin(angle)$+$B$*$math.sin((A/B#C)*angle)$ 13. $ 14. shape['shapesize']$=$5$ 15. shape['color']$=$"RED"$ 16. $ 17. ShapeWriter:write()$ $ February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 42
- 43. CodeGen 2.0 (Experimental) • Reduce code generaTon Tme especially when dealing with large IDL files and large number of IDL files • Ease customizaTons and extensions to code generaTon • Usability – Apache Velocity (VLT) templates are used in place of XSL • Performance – With small IDL files, performance is 6x faster (server mode) – With a large IDL file (2,000 structs) CodeGen 2.0 is >10x faster February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 43
- 44. MigraTng to 5.1 • No API changes required – ExcepTon: Removed “_exp” suffix from XML ApplicaTon CreaTon APIs • Must regenerate code • BuilTn QoS profile provided for 5.0 interoperability • Monitoring and administraTon topics are not compaTble with 5.0 – Now leveraging XTypes for future forward compaTbility February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 44
- 45. Connext DDS 5.1 Summary • 60+ new features and enhancements to improve – Scalability – Extensibility – Adaptability and performance – Usability and debuggability • New experimental features • 20+ new plaVorms February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 45
- 46. Next Steps • Connext DDS Professional 5.1 downloads – EvaluaTon: hhp://www.rT.com/downloads/connext.html – Customer portal: hhp://support.rT.com – Live CD: hhp://community.rT.com/content/page/downloads • Blog posts with more details at hhp://blogs.rT.com • Many resources at hhp://community.rT.com – Examples – Case+Code – Forums – Knowledgebase • New and improved performance test – hhp://community.rT.com/downloads/rT-‐connext-‐dds-‐ performance-‐test February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 46
- 47. Thank You! February 27, 2014 © 2014 REAL-‐TIME INNOVATIONS, INC. 47