Discrepancy in topic displayed Hz
Hi,
I've run in a strange situation. I've recorded in a rosbag a topic with should be publish at 100 Hz.
When playing back the bag with command-line instruction rosbag play, the topic is shown to be publish at 100.0 Hz (either by rostopic hz or by rqt topic_monitor). However, when I verify the callback rate of a subscriber subscribed to this topic, I get a much lower freq, around 20.0 Hz.
Now for the interesting part. When I open the same bag with rqtbag and visually validate the message reception rate, I find the rate to be actually 20.0 Hz. Furthermore, if I play the bag from rqtbag, the rate displayed is 20.0 Hz.
My question would be, why the displayed rate is incorrect with rosbag play?
Asked by AlexandreB on 2016-07-24 09:58:57 UTC
Comments
Hi, I've the same problem. Have you found the solution? Thanks!
Asked by UliaM on 2021-01-29 10:14:07 UTC
No, not yet
Asked by AlexandreB on 2023-04-24 15:06:12 UTC