Simple ECS Project Optimization Help

Unity Engine
, , ,
1

I have a simple DOTS project using Entities, Hybrid Renderer, and Physics that I’ve been working on as DOTS progresses. However, I’m wondering if there’s anything I’m doing wrong or what I can do to optimize this project overall. I’m not sure what areas I could change in my code to increase performance.

https://github.com/AkanshDivker/Simple-ECS

I noticed a few things so far. Before I switched my project to use the new Physics package, I could stack up thousands of entities without any issues. I used to be able to run 50,000 seamlessly but now it seems to have been halved without encountering a serious performance drop.

In addition, I noticed that my ball graphics (MovementSystem) stutter when moving, now that it’s Physics based. I’m not sure how to go about fixing the stutter that occurs when trying to move the player.

Greatly appreciate any help and feedback, thanks :slight_smile:

2

Hi @Akansh , I took a brief look at your project and it looks nice. As a potential improvement, I’d advise running CollisionSystem and MovementSystem jobs on worker threads instead of main, by replacing Dependency.Complete() with CommandBufferSystem.AddJobHandleForProducer(Dependency) and calling Schedule() instead of Run() .

These doc pages may help:
https://docs.unity3d.com/Packages/com.unity.entities@0.7/manual/ecs_job_dependencies.html
https://docs.unity3d.com/Packages/com.unity.entities@0.7/api/Unity.Entities.SystemBase.html#Unity_Entities_SystemBase_Dependency
https://docs.unity3d.com/Packages/com.unity.entities@0.4/manual/entity_command_buffer.html

1 Like
3

Thanks for your help! I applied the changes you recommended. Hopefully, I did it all correctly.

I still can’t figure out the issue with the player’s graphics (sphere) stuttering when moving, it looks pretty jittery when applying motion.