The document provides an overview of new features and enhancements in Connext DDS Professional 5.1, including support for extensible and mutable data types, optional members, improved default transport settings, enhanced TCP transport using IOCP, and experimental features such as Turbo Mode and Auto Throttle. The Admin Console has also been expanded to include debugging functionality.

1. Your systems.
Working as one.
Connext DDS Professional 5.1
Overview
February 2014

2. Agenda
• Connext DDS Professional 5.1
• New Features and Enhancements
• Summary
2/11/2014
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3. RTI Connext DDS Professional 5.1
• 60+ new features and enhancements to
improve
– Scalability
– Performance
– Usability
– Product Capability
• New experimental features
• 20+ new platforms
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4. New Features and Enhancements
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5. XTypes - Mutable Types
• Motivation for XTypes
– Support customer product life cycle
• Dynamic upgrades for large and mission-critical systems
• Allow types to evolve without breaking interoperability
with applications using different versions
• Mutable Types
– Supported in C, C++, Java and .NET/C#
– Supported in Dynamic Data
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6. Extensible Types
Connext DDS 5.0
@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
};
@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
};
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7. Mutable Types
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 y; //@ID 3
long z; //@ID 4
};
@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
};
4-byte or 12-byte per member extra overhead on the wire.
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8. XTypes - Optional Members
• Motivation
– Support scenarios in which data type member
value is not known or does not exist
• Specific
– Supported in C, C++ and Java
– Supported in Dynamic Data
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9. Optional Members
@Extensibility(MUTABLE_E
XTENSIBILITY)
struct TrackData {
long id;
long x;
long y;
long z; //@Optional
};
C/C++
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
Bandwidth overhead per member
FINAL/EXTENSIBLE
SET
4/12-byte HEADER + VALUE
4/12-byte HEADER + VALUE
NOT SET
2/11/2014
MUTABLE
4/12-byte HEADER
0-byte
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10. Builtin QoS Profile
• Motivation
– Facilitate configuration of the product for common scenario and use
cases
– Reduce configuration effort for setting individual QoS parameters
– Communicate how to use new features or QoS in a use case
– Increase accessibility of new capabilities and features
• Specific
– Total of 34 QoS Profiles as part of the core library
– Can be extended and expanded as new features developed and new
use cases identified
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11. Builtin QoS Profiles
Baseline
Generic
Basic
Pattern
Large Data
BASELINE_
ROOT
GENERIC_
COMMON
STRICT_RELIABLE
BASELINE
GENERIC_
MONITORING
KEEP_LAST_
RELIABLE
STRICT_RELIABLE_
LARGE_DATA
BASELINE_
5_0_0
GENERIC__
CONNEXT_MICRO
_COMPATIBILITY
BEST_EFFORT
PARTICIPANT_LARGE_
DATA_MONITORING
GENERIC_
CONNEXT_OTHER
DDS_VENDOR_
COMPATIBILITY
STRICT_RELIIABLE_LOW
_LATENCY
BASELINE_
5_1_0
STRICT_RELIABLE_
HIGH_THROUGHPUT
Durability
KEEP_LAST_RELIABLE_
TRANSIENT_LOCAL
PARTICIPANT_
LARGE_DATA
KEEP_LAST_RELIABLE
_
LARGE_DATA
Large Data with
Flow Control
PERIODIC_DATA
STRICT_RELIABLE_LARGE_
DATA_FAST_FLOW
STREAMING
STRICT_RELIABLE_LARGE_
DATA_MEDIUM_FLOW
RELIABLE_
STREAMING
STRICT_RELIABLE_LARGE_
DATA_SLOW_FLOW
ALARM_EVENT
KEEP_LAST_RELIABLE_
LARGE_DATA_FAST_FLO
W
EVENT
Performance
KEEP_LAST_RELIABLE_LAR
GE_DATA_MEDIUM_
FLOW
AUTO_TUNING
KEEP_LAST_RELIABLE_
LARGE_DATA_SLOW_
FLOW
ALARM_STATUS
STATUS
LAST_VALUE_
CACHE
KEEP_LAST_RELIABLE_
TRANSIENT
KEEP_LAST_RELIABLE_
PERSISTENT
Experimental

12. Improved Default Transport Settings
• Motivation
– Improve out-of-box performance
– Minimize need for tuning
• Specific
– Increased MTU size, Send Buffer size and Receive
Buffer size
– Default QoS profile available to enable backward
compatible with 5.0.0
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13. Enhanced TCP Transport using
I/O Completion Port (IOCP)
• Motivation
– Increase the scalability of TCP transport by
supporting more TCP connections in Windowsbased deployments
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14. I/O Completion Port (IOCP)
Synchronous I/O operation
using Select () API
Asynchronous I/O operation
using IOCP API
Connext DDS 5.0
Connext DDS 5.1
Windows
server
Windows
server
~ 600 clients
clients clients
clients
clients
clients
clientsclients clients
>1500 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
• To enable IOCP simply set the property socket_monitoring_kind in TCP plugin
to WINDOWS_IOCP

15. UDPv4 NAT Support
• Motivation
– In 5.0 WAN transport requires running a
rendezvous server when crossing NAT
– Allow applications running outside the NAT to
continue using UDPv4 transport without changes
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16. UDPv4 NAT Support
• New way to traverse WAN
• New UDPv4 transport property
dds.transport.UDPv4.builtin.public_address to provide IP
address to be announced to other DomainParticipants
DomainParticipant 1
Address:
192.168.1.1
UDPv4
Transport
NAT
DomainParticipant 2
Port:
21411
10.10.1.4
192.168.1.1
Dst IP:
10.10.1.4
Unicast discovery locator:
10.10.1.3:21410
Unicast user-data locator:
10.10.1.3:21411
10.10.1.3
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17. Routing Service Content Filter Propagation
• Motivation
– Reduce bandwidth and CPU utilization in a
Routing Service hierarchical system where
DataReaders subscribe to only a subset of the data
– DataWriter and Routing Service only publish data
that is subscribed
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18. Routing Service – Content Filter Propagation
DataReader
DataWriter
X=1
DataReader
X=6
DataWriter
DataReader
X=8
Connext DDS 5.1
DataWriter
1 2 3
DR
DataReader
1
1 6 8
DW
DataReader
6
DataWriter
6 7 8
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DataReader
COMPANY CONFIDENTIAL
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19. Turbo Mode (Experimental)
• Motivation
– When system condition changes, automatically adjust QoS
to maintain optimal performance
– Improve performance in burst traffic scenario
• high throughput at high sending rate
• low latency at slow sending rate
2/11/2014
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20. Auto Throttle (Experimental)
• Motivation
– When system condition changes, automatically adjust
QoS to maintain optimal performance
– Improves latency average and jitter in high throughput
conditions
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21. CodeGen 2.0 (Experimental)
• Motivation
– Reduce code generation time especially when dealing with large IDL
files and large number of IDL files.
– Ease customizations and extensions to code generation
• 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
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22. Prototyper with LUA (Experimental)
XML
Settings
Prototyper (“Container”)
Lua Engine
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()
Lua
Component
DDS

23. Spreadsheet Add-in Enhancements
• Spreadsheet Add-in adds support for
visualizing extensible, mutable and optional
members
• Added support for Excel 2013 (we now
support 2010 and 2013)
Vehicle
Wheeled
Vehicle
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24. Recording Service: Flexible Field Selection
Pre 5.1.0 …
25 columns of metadata
What the user really cares about
What we store by default, apart from user-data
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25. Recording Service: Flexible Field Selection
Now (5.1.0) …
2
columns
of
metadata
What the user really cares about
What we also store in the DB by default
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26. Recording Service: Flexible Field Selection
Users can now select what SampleInfo
fields to store with their recorded data
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27. Recording Service: Integration with X-Types
• Recorder, Replay and Converter can now work
with extensible, mutable types and optional
members
Vehicle
Wheeled
Vehicle
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28. Recording Service: Online Indexing
• Enable access the DB while recording
– Efficient queries based on the source timestamp
and some user defined fields
• New in 5.1.0: flexible, userdefined, DB indexing while
recording
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29. Recording Service: Other Features
• SQLite version upgraded from 3.3.13 to 3.7.17
– New DB journal mode: WAL (Write-Ahead Log)
provides improved concurrency
• New in 5.1.0: ability to specify SQLite pragmas
– Useful for fine-tuning performance or other
aspects, like concurrency
– E.g. page size on Windows systems
– WAL journal mode for concurrency
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30. Admin Console
RTI Services
Administration
(5.0.0)
Debugging
(5.1.0)
Admin Console Infrastructure
Eclipse RCP
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31. Real-time Match Analyses
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32. Health View
9 conditions are evaluated to determine health.
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33. Topic
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34. QoS
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35. DDS Data Type
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36. System Log
Combined log from all applications using Distributed Logger.
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37. Routing Service : Resources Chart
Similar view for Host
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38. Extended Process Information
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39. Auto Join
6
8
2/11/2014
Domains Joined:
0, 6, 8
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40. Monitor UI
• Auto join active DDS domains.
• No monitoring information indicators.
• Displays DataReaders and DataWriters even if
monitoring library is not enabled.
• System Overview usability improvements
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41. Many More …
• Prioritized Samples Supported in Java and C# APIs
– Enable prioritization of traffic when in competition for transmission
resources
• Ability to Change Expression in ContentFilterTopic
– More flexible for a subscriber to change its interest on the data contents
• Ability to Zero Out Padding Bytes in Message on the Wire
– To provide better security
• XML-Based Application Creation is now GAR
– Simplifies development and programming effort of RTI Connext application
• New APIs to Get ParticipantBuiltinTopicData of Matched Publication or
Subscription using Publication and Subscription Handles
– Easier way to retrieve information about remote application that publish
and subscribe data
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42. Summary
• Connext DDS Professional 5.1 greatly improves
–
–
–
–
•
•
•
•
2/11/2014
Scalability
Usability
Performance
Robustness
Rich set of Tools
Most standards compliant DDS middleware in the market
Runs on all mainstream platforms
Available NOW!
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43. Thank You!
2/11/2014
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