I am the creator of the Banov community map, and I would like to report a serious dedicated server performance issue involving vanilla vehicles in DayZ Experimental 1.30.

During extensive testing, I noticed that enabling regular vanilla cars through the Central Economy causes a significant reduction in server simulation FPS.

Observed behavior:

• With regular cars disabled, the server performs normally.

• With only the newer motorcycles enabled, server performance remains stable.

• When regular vanilla cars are enabled, server simulation FPS can drop to approximately 20.

• The issue has been observed across different hosting configurations.

• Testing with a reduced mod setup using Banov did not eliminate the issue.

The performance degradation appears to be associated with regular cars rather than general terrain simulation.

Previous diagnostic logs also showed invalid vehicle position warnings involving Hatchback_02 and OffroadHatchback, including invalid numerical coordinates such as -nan(ind).

I cannot confirm whether these warnings are directly responsible for the performance loss.

Because Banov is a custom terrain, potential causes could include vehicle physics, collision geometry, vehicle spawning, persistence, or interaction with the Central Economy.

I would greatly appreciate an investigation into this behavior in DayZ 1.30, especially regarding vehicle simulation on custom terrains.

My goal is to determine whether this is an engine-related problem or whether specific terrain or vehicle configuration changes are required.

Thank you for supporting the DayZ modding community.

KubeloLive
Creator of DayZ Banov

1. Launch a DayZ Experimental 1.30 dedicated server using the Banov community terrain.

2. Enable the Central Economy with regular vanilla vehicle spawn events disabled.

3. Start the server and monitor server simulation FPS.

4. Enable only the newer motorcycle spawn events and observe server performance.

5. Disable the motorcycle events and enable regular vanilla car spawn events, including vehicles such as Hatchback_02 and OffroadHatchback.

6. Restart the server with the updated vehicle configuration.

7. Monitor server simulation FPS after the vehicles are spawned.

8. Observe whether server FPS drops significantly, potentially reaching approximately 20 FPS.

9. Check the RPT logs for vehicle-related warnings, especially invalid positions or physics-related errors.

10. Disable regular car events again, restart the server and compare performance under otherwise similar conditions.

The reported issue has also been observed across different hosting environments and during testing with a reduced mod configuration.

Vanilla vehicles should spawn and operate correctly without causing a severe reduction in dedicated server simulation FPS.

Enabling regular cars through the Central Economy should not result in significant server performance degradation compared with configurations where only motorcycles are enabled.

Vehicle physics, spawning, collision detection and persistence should operate correctly on supported custom terrains without generating invalid vehicle position data.