Solutions

Why shouldn't I use DDS_String_dup() to initialize string data?

Note: This solution applies to RTI Data Distribution Service 4.x. The description in this FAQ only applies to data instances that are allocated with FooTypeSupport::create_data(), which pre-allocates the strings. (It does not apply to situations in which the data instance is allocated on the stack ...
Victor
Wed, 01/30/2013 - 17:09
13293 reads — 0 comments

What should I consider when testing RTI Connext performance on Gig-E/Infiniband networks?

Performance is a function of how well hardware and software components work together with the middleware. The relationship is certainly not easily predictable. With very fast hardware, the limitation seems to be the hardware bus speed. The PCI just cannot keep up and this leads to high CPU ...
aida
Fri, 01/18/2013 - 03:32
3530 reads — 0 comments

How do I tune the network buffering in VxWorks 5.4?

Note: Applies to NDDS 3.0 and VxWorks 5.4. Introduction The VxWorks TCP/IP stack uses a fixed amount of buffers. The buffers and their sizes are configured in the kernel. This is different from non real-time OSs, where the buffers can be taken as needed from main memory. In many NDDS applications ...
abhi
Thu, 01/17/2013 - 13:22
24859 reads — 0 comments

Example Code - Aggregation

Note: Applies to RTI Data Distribution Service 4.1, 4.2; While the design pattern also works for RTI Data Distribution Service 4.3 and above, its batching feature is a better way to achieve aggregation. Purpose Publisher This example shows how to create an application that aggregates data. This ...
erin
Thu, 01/17/2013 - 13:15
4815 reads — 0 comments

How do I set the multicast_receive_addresses when using rtiddsping and rtiddsspy?

Note: Applies to RTI Data Distribution Service 4.3x and above, Both rtiddsping and rtiddsspy can be configured to use multicast for discovery announcements by specifying a multicast address as part of the initial peer list (using -preer <PEER> ). However, rtiddsping and rtiddsspy do not have ...
vishal
Thu, 01/17/2013 - 13:01
6267 reads — 0 comments

Example Code - Aggregation Throughput Test

Note: Applies to RTI Data Distribution Service 4.3 and above. The following example is written in C++. Publisher This throughput test is based on the throughput test in $NDDSHOME/example/CPP/performance/throughput, with modifications to batch data samples for aggregation. Instead of sending ...
edward
Thu, 01/17/2013 - 12:59
3915 reads — 0 comments

What does RTI Analyzer error code 127 or 'shell error undefined symbol: _ZN4nsID5ParseEPKc' in libswt mean?

If you are running RTI Analyzer on Linux and you see the following message: JVM terminated. Exit code=127 and the following error on the command shell: /usr/local/rti/RTI_Developer_Platform_1.3.0/jre/bin/java: symbol lookup error: /usr/local/rti/RTI_Developer_Platform_1.3.0/apps/RTI_Analyzer_1.3.0/ ...
Ran
Thu, 01/17/2013 - 12:56
4023 reads — 0 comments

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