perf: Reduce Message Noise

Assets/Mirror/Components/NetworkTransform/NetworkTransformBase.cs

@@ -449,13 +449,16 @@ public virtual void Reset()
             // default to ClientToServer so this works immediately for users
             syncDirection = SyncDirection.ClientToServer;
 
+            NetworkTime.highPingComponents = 0UL;
+
             // default to 20Hz, 20 sends per second if data has changed.
             syncInterval = 0.05f;
         }
 
         protected virtual void OnEnable()
         {
             ResetState();
+            NetworkTime.highPingComponents++;
 
             if (NetworkServer.active)
                 NetworkIdentity.clientAuthorityCallback += OnClientAuthorityChanged;
@@ -465,6 +468,9 @@ protected virtual void OnDisable()
         {
             ResetState();
 
+            if (NetworkTime.highPingComponents > 0UL)
+                NetworkTime.highPingComponents--;
+
             if (NetworkServer.active)
                 NetworkIdentity.clientAuthorityCallback -= OnClientAuthorityChanged;
         }

Assets/Mirror/Components/PredictedRigidbody/PredictedRigidbody.cs

@@ -145,6 +145,17 @@ protected virtual void Awake()
             positionCorrectionThresholdSqr = positionCorrectionThreshold * positionCorrectionThreshold;
         }
 
+        protected virtual void OnEnable()
+        {
+            NetworkTime.highPingComponents++;
+        }
+
+        protected virtual void OnDisable()
+        {
+            if (NetworkTime.highPingComponents > 0UL)
+                NetworkTime.highPingComponents--;
+        }
+
         protected virtual void CopyRenderersAsGhost(GameObject destination, Material material)
         {
             // find the MeshRenderer component, which sometimes is on a child.

Assets/Mirror/Core/NetworkClient.cs

@@ -1753,7 +1753,8 @@ static void Broadcast(bool unreliableBaselineElapsed)
             if (NetworkServer.active) return;
 
             // send time snapshot every sendInterval.
-            Send(new TimeSnapshotMessage(), Channels.Unreliable);
+            if (NetworkTime.highPingComponents > 0UL)
+                Send(new TimeSnapshotMessage(), Channels.Unreliable);
 
             // broadcast client state to server
             BroadcastToServer(unreliableBaselineElapsed);

Assets/Mirror/Core/NetworkConnectionToClient.cs

@@ -136,6 +136,8 @@ protected virtual void UpdatePing()
             // localTime (double) instead of Time.time for accuracy over days
             if (NetworkTime.localTime >= lastPingTime + NetworkTime.PingInterval)
             {
+                //Debug.Log("NetworkConnectionToClient SendPing");
+
                 // TODO it would be safer for the server to store the last N
                 // messages' timestamp and only send a message number.
                 // This way client's can't just modify the timestamp.

Assets/Mirror/Core/NetworkServer.cs

@@ -2278,7 +2278,8 @@ static void Broadcast(bool unreliableBaselineElapsed)
                     // make sure Broadcast() is only called every sendInterval,
                     // even if targetFrameRate isn't set in host mode (!)
                     // (done via AccurateInterval)
-                    connection.Send(new TimeSnapshotMessage(), Channels.Unreliable);
+                    if (NetworkTime.highPingComponents > 0UL)
+                        connection.Send(new TimeSnapshotMessage(), Channels.Unreliable);
 
                     // broadcast world state to this connection
                     BroadcastToConnection(connection, unreliableBaselineElapsed);

Assets/Mirror/Core/NetworkTime.cs

@@ -16,11 +16,17 @@ namespace Mirror
     /// <summary>Synchronizes server time to clients.</summary>
     public static class NetworkTime
     {
+        // Incremented / decremented by components that need higher ping frequency.
+        // Also used to determine if we need to send TimeSnapshotMessage by
+        // NetworkServer and NetworkClient.
+        internal static ulong highPingComponents = 0UL;
+        const float highPingInterval = 0.1f;
+
         /// <summary>Ping message interval, used to calculate latency / RTT and predicted time.</summary>
-        // 2s was enough to get a good average RTT.
-        // for prediction, we want to react to latency changes more rapidly.
-        const float DefaultPingInterval = 0.1f; // for resets
-        public static float PingInterval = DefaultPingInterval;
+        // 2s is enough to get a good average RTT.
+        // For snapshot interpolation and prediction, we need to react to latency changes more rapidly.
+        internal static float defaultPingInterval = 2.0f; // internal for tests
+        public static float PingInterval => highPingComponents > 0UL ? highPingInterval : defaultPingInterval;
 
         /// <summary>Average out the last few results from Ping</summary>
         // const because it's used immediately in _rtt constructor.
@@ -129,7 +135,8 @@ public static double predictedTime
         [RuntimeInitializeOnLoadMethod]
         public static void ResetStatics()
         {
-            PingInterval = DefaultPingInterval;
+            defaultPingInterval = 2.0f;
+            highPingComponents = 0UL;
             lastPingTime = 0;
             _rtt = new ExponentialMovingAverage(PingWindowSize);
 #if !UNITY_2020_3_OR_NEWER
@@ -147,6 +154,8 @@ internal static void UpdateClient()
         // Separate method so we can call it from NetworkClient directly.
         internal static void SendPing()
         {
+            //Debug.Log("NetworkTime SendPing");
+
             // send raw predicted time without the offset applied yet.
             // we then apply the offset to it after.
             NetworkPingMessage pingMessage = new NetworkPingMessage

Assets/Mirror/Tests/Editor/NetworkConnection/NetworkConnectionToClientTests.cs

@@ -35,7 +35,7 @@ public void Send_BatchesUntilUpdate()
         {
             // create connection and send
             NetworkConnectionToClient connection = new NetworkConnectionToClient(42);
-            NetworkTime.PingInterval = float.MaxValue; // disable ping for this test
+            NetworkTime.defaultPingInterval = float.MaxValue; // disable ping for this test
             byte[] message = {0x01, 0x02};
             connection.Send(new ArraySegment<byte>(message));
 
@@ -64,7 +64,7 @@ public void SendBatchingResetsPreviousWriter()
 
             // create connection
             NetworkConnectionToClient connection = new NetworkConnectionToClient(42);
-            NetworkTime.PingInterval = float.MaxValue; // disable ping for this test
+            NetworkTime.defaultPingInterval = float.MaxValue; // disable ping for this test
 
             // send and update big message
             byte[] message = {0x01, 0x02};

Assets/Mirror/Tests/Runtime/NetworkServerRuntimeTest.cs

@@ -87,8 +87,7 @@ NetworkIdentity SpawnPrefab(GameObject prefab)
         [UnityTest]
         public IEnumerator DisconnectTimeoutTest()
         {
-            // Set low ping frequency so no NetworkPingMessage is generated
-            NetworkTime.PingInterval = 5f;
+            NetworkTime.defaultPingInterval = float.MaxValue; // disable ping for this test
 
             // Set a short timeout for this test and enable disconnectInactiveConnections
             NetworkServer.disconnectInactiveConnections = true;