TempAllocTest.cs

using Unity.Collections;
using UnityEngine;

[ExecuteAlways]
public class TempAllocTest : MonoBehaviour
{

    private NativeHashMap<int, int> Map;

    private void OnEnable()
    {
        Map = new NativeHashMap<int, int>(64, Allocator.Persistent);
        for(int i=0;i<1024 * 512;i++)
        {
            Map[i] = default;
        }
    }

    private void OnDisable()
    {
        if (Map.IsCreated) Map.Dispose();
    }

    private void OnDrawGizmosSelected()
    {
        if (!Map.IsCreated) return;
        var keys = Map.GetKeyArray(Allocator.Temp);

    }
}