How to check size of a topic on multi device ROS Communication
Hello, experts.
I am trying to ROS communicate with multi device. There is two PC. First one have a camera sensor, it have publish topics by 30 fps. Second one have be connected to another by 1Gb Ethernet. (Exactly, There is a switch-hub for these. it's specs for PCs is enough, 1Gb)
When I subscribe A's image topics, the hz is not 30 hz, 16.8 hz.
$ rostopic bw /my_topic
average: 160.24MB/s
mean: 6.96MB min: 6.96MB max: 6.96MB window: 100
The size of a saved image is 476.3 kB.
How can I DEBUG to solve this issue? How much is size of a ROS topic's header?
The problem is the size of images. So, I implements 10Gb ethernet module on my pc.