All Systems are repeating multiple times in Profiler

Unity Engine
,
1

All systems are duplicated 2-5 times in the profiler. Is this how it should be? For example, in frame 1 the SimulationSystemGroup runs in 10ms, in frame 2 it takes 20ms (all systems are repeated 1 time), in frame 3: again 10ms, and so on. Is there any idea how to fix this?

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7997391--1027983--Screenshot_1.png1047×593 40.7 KB

7997391--1027986--Screenshot_2.png
7997391--1027986--Screenshot_2.png1123×410 48.2 KB

2

This doesn’t seem normal. How are you bootstrapping your system creation?

3

Looks like because of this. Without this system it works fine, but I need physics independent from framerate. I tried to change fixedDeltaTime to DeltaTime - the same.

public class FixedStepPhysicsSystem : SystemBase
{
    private bool once = false;

    protected override void OnUpdate()
    {
        if (once == false)
        {
            FixedRateUtils
            .EnableFixedRateWithCatchUp(World.GetOrCreateSystem<SimulationSystemGroup>(),
            UnityEngine.Time.fixedDeltaTime);
            once = true;
        }
    }
}
4

The built-in physics systems are already run in a fixed time-step. They run in the FixedStepSimulationSystemGroup.

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