Lag when subscribing to custom messages

This issue has been tracked since 2021-09-15.

Lag when subscribing to a custom Image message

  • Version: 1.1.0
  • Platform: Ubuntu 20.04

Simply create your own custom message like this
int32 width int32 height uint8[] data
Then use roslibjs to subscribe to the message and view it at normal FPS.
Thereafter subscribe to a normal sensor_msgs/Image message and then view it at normal FPS.

The custom rosmessage has extreme lag, whereas the normal one does not have any.

No compression on any of the two topics were used.

This happens with other custom messages as well

MatthijsBurgh wrote this answer on 2021-09-15

There is no code related to sensor_msgs in this repo, no optimizations etc. So the performance difference can't be caused by roslibjs.

So check the way you publish and first compare the frequency, bandwidth, etc. for the two different messages by other ros tools.

More Details About Repo
Owner Name RobotWebTools
Repo Name roslibjs
Full Name RobotWebTools/roslibjs
Language JavaScript
Created Date 2013-03-15
Updated Date 2022-11-22
Star Count 549
Watcher Count 54
Fork Count 340
Issue Count 66

YOU MAY BE INTERESTED

Issue Title Created Date Updated Date