How to handle 10 million static physicshape Entities in DOST . I can only handle 1 million.

Hi Guys,
I want to build a big word with 10 million static physics shape Entities which is on server side no need to be rendered. These entities I need to cast so I have to add physics shape on them. and I got a strange problem:

When I added 1.1 millions the FPS is about 330 FPS. but on 1.2 millions the FPS downs to 110 FPS. But on 1.3 millions the FPS downs to 3 FPS . please check this out :


I test it on 96 cpus cloud server.

and this is how I handle that.

I created a gameobject with Physics Shape.



and Instantiate them in Start()

Code (CSharp):

1.    for (int i = 0; i < maxCount; i++)
2.         {
3.             GameObject go = Instantiate(obj);
4.             go.AddComponent<ConvertToEntity>();
5.         }

then I build a Dedicated Server for ubuntu.

Anyone has some ideas for this ?

Thank you very much.

 

I have never played with DOTS on this scale, so I'm just guessing here, but when the performance dips this abruptly, it often mean you're running out of memory and start to swap. Have you checked your memory consumption?

 

Yes I checked the memory there are about 90G free only used about 6G.

 

BuildPhysicWorld takes a lot of time.

 

Moved to correct forum.

 

Seems interesting!
Can you provide a screenshot of the Unity Profiler of BuildPhysicsWorld and it's jobs (at 1 million and 1.1 million cases), and then we can discuss more about what could have gone wrong?