When logging into the host from a remote machine via SSH and initiating the loading of a large grid map (Width: 5222 pixels, Height: 51118 pixels), opening Rviz2 on the remote machine results in the map not displaying, and the host's performance becomes extremely sluggish. In some cases, the host terminal becomes unresponsive. However, upon closing Rviz2 on the remote machine, the host returns to normal.

[Zhengxg178]

host：

ubuntu22.04
ros2 humble

remote ：

ubuntu22.04
ros2 humble

When logging into the host from a remote machine via SSH and initiating the loading of a large grid map (Width: 5222 pixels, Height: 51118 pixels), opening Rviz2 on the remote machine results in the map not displaying, and the host's performance becomes extremely sluggish. In some cases, the host terminal becomes unresponsive. However, upon closing Rviz2 on the remote machine, the host returns to normal.

When an external screen is connected to the host, and the navigation map is loaded, opening Rviz2 on the host works fine, and there are no issues.

[tylerjw]

Hello, thank you for the bug report. Would you mind trying some stuff to better help us understand the cause of this?

• If you use rviz over ssh without the large grid map is it still sluggish?
• Secondly, it would be helpful to know more details about how you are using it over SSH. Are you doing it via x-forwarding? Over what sort of network are you using it? Could it be a bandwidth issue?