Profiler.GetTotalAllocatedMemoryLong

Returns

long The amount of memory allocated by Unity. This returns 0 if the Profiler is not available.

Description

The total memory allocated by the internal allocators in Unity. Unity reserves large pools of memory from the system; this includes double the required memory for textures becuase Unity keeps a copy of each texture on both the CPU and GPU. This function returns the amount of used memory in those pools.

using UnityEngine;
using UnityEngine.Profiling;

public class Example : MonoBehaviour
{
    void Update()
    {
        Debug.Log("Total Reserved memory by Unity: " + Profiler.GetTotalReservedMemoryLong() + "Bytes");
        Debug.Log("- Allocated memory by Unity: " + Profiler.GetTotalAllocatedMemoryLong() + "Bytes");
        Debug.Log("- Reserved but not allocated: " + Profiler.GetTotalUnusedReservedMemoryLong() + "Bytes");
    }
}