asynchronous

What does the warning PRESWriterHistoryDriver_completeBeAsynchPub:!make_sample_reclaimable mean?

When using asynchronous publication and Best Effort reliability, you may see the warning: PRESWriterHistoryDriver_completeBeAsynchPub:!make_sample_reclaimable in topic 'MyTopic' This warning message may be caused by a small history depth you are configuring. Since you are using asynchronous ...
grayson
Mon, 03/27/2023 - 16:05
829 reads — 0 comments

Configuring DDS to mitigate performance degradation due to packet loss

If you are using Reliable communication, you could see a performance degradation due to packet loss and resending data sample fragments. This is more probable when using data bigger than 1500 Bytes (over Ethernet). In general, a DDS application using a transport such as UDPv4 splits data samples ...
sara
Wed, 07/19/2017 - 02:29
6622 reads — 0 comments

I am not receiving samples, could it be IP fragmentation?

What is IP fragmentation? IP Fragmentation occurs when the payload provided from the transport layer (typically UDP or TCP) exceeds the maximum payload that fits in a single Ethernet Frame (a.k.a. MTU). When the receiver NIC gets IP fragments, it stores them in a buffer until all the fragments are ...
Francisco Porcel
Wed, 07/05/2017 - 07:05
12724 reads — 0 comments
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