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Assets/Mirror/Examples/Benchmark/Scripts/BenchmarkNetworkManager.cs

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+using UnityEngine;
+
+namespace Mirror.Examples.Benchmark
+{
+    [AddComponentMenu("")]
+    public class BenchmarkNetworkManager : NetworkManager
+    {
+        [Header("Spawns")]
+        public GameObject spawnPrefab;
+        public int spawnAmount = 5000;
+        public float interleave = 1;
+
+        void SpawnAll()
+        {
+            // calculate sqrt so we can spawn N * N = Amount
+            float sqrt = Mathf.Sqrt(spawnAmount);
+
+            // calculate spawn xz start positions
+            // based on spawnAmount * distance
+            float offset = -sqrt / 2 * interleave;
+
+            // spawn exactly the amount, not one more.
+            int spawned = 0;
+            for (int spawnX = 0; spawnX < sqrt; ++spawnX)
+            {
+                for (int spawnZ = 0; spawnZ < sqrt; ++spawnZ)
+                {
+                    // spawn exactly the amount, not any more
+                    // (our sqrt method isn't 100% precise)
+                    if (spawned < spawnAmount)
+                    {
+                        // instantiate & position
+                        GameObject go = Instantiate(spawnPrefab);
+                        float x = offset + spawnX * interleave;
+                        float z = offset + spawnZ * interleave;
+                        go.transform.position = new Vector3(x, 0, z);
+
+                        // spawn
+                        NetworkServer.Spawn(go);
+                        ++spawned;
+                    }
+                }
+            }
+        }
+
+        public override void OnStartServer()
+        {
+            base.OnStartServer();
+            SpawnAll();
+        }
+    }
+}

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Assets/Mirror/Examples/Benchmark/Scripts/MonsterMovement.cs

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+using UnityEngine;
+
+namespace Mirror.Examples.Benchmark
+{
+    public class MonsterMovement : NetworkBehaviour
+    {
+        public float speed = 1;
+
+        // movement probability:
+        // 0.5 is too high, monsters are moving almost all the time.
+        // only-sync-on-change shows no difference with 0.5 at all.
+        // in other words: broken change detection would be too easy to miss!
+        [Header("Note: use 0.1 to test change detection, 0.5 is too high!")]
+        public float movementProbability = 0.1f;
+        public float movementDistance = 20;
+
+        bool moving;
+        Vector3 start;
+        Vector3 destination;
+
+        public override void OnStartServer()
+        {
+            start = transform.position;
+        }
+
+        [ServerCallback]
+        void Update()
+        {
+            if (moving)
+            {
+                if (Vector3.Distance(transform.position, destination) <= 0.01f)
+                {
+                    transform.position = destination;
+                    moving = false;
+                }
+                else
+                {
+                    transform.position = Vector3.MoveTowards(transform.position, destination, speed * Time.deltaTime);
+                }
+            }
+            else
+            {
+                float r = Random.value;
+                if (r < movementProbability * Time.deltaTime)
+                {
+                    Vector2 circlePos = Random.insideUnitCircle;
+                    Vector3 dir = new Vector3(circlePos.x, 0, circlePos.y);
+
+                    // set destination on random pos in a circle around start.
+                    // (don't want to wander off)
+                    destination = start + dir * movementDistance;
+                    moving = true;
+                }
+            }
+        }
+    }
+}

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Assets/Mirror/Examples/Benchmark/Scripts/PlayerMovement.cs

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+using UnityEngine;
+
+namespace Mirror.Examples.Benchmark
+{
+    public class PlayerMovement : NetworkBehaviour
+    {
+        public float speed = 5;
+
+        // naming for easier debugging
+        public override void OnStartClient()
+        {
+            name = $"Player[{netId}|{(isLocalPlayer ? "local" : "remote")}]";
+        }
+
+        public override void OnStartServer()
+        {
+            name = $"Player[{netId}|server]";
+        }
+
+        void Update()
+        {
+            if (!isLocalPlayer) return;
+
+            float h = Input.GetAxis("Horizontal");
+            float v = Input.GetAxis("Vertical");
+
+            Vector3 dir = new Vector3(h, 0, v);
+            transform.position += dir.normalized * (Time.deltaTime * speed);
+        }
+    }
+}

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