* Change the OnQueueEmpty signature to send the flags of the queues that are empty instead of firing once per empty queue

* Change the OnQueueEmpty firing to use a minimum time until next fire instead of a sleep
* Set OutgoingPacket.TickCount = 0 earlier to avoid extra resends when things are running slowly (inside a profiler, for example)

OpenSim/Framework/ThrottleOutPacketType.cs

@@ -51,4 +51,16 @@ namespace OpenSim.Framework
         /// <remarks>This is a sub-category of Task</remarks>
         State = 7,
     }
+
+    [Flags]
+    public enum ThrottleOutPacketTypeFlags
+    {
+        Land = 1 << 0,
+        Wind = 1 << 1,
+        Cloud = 1 << 2,
+        Task = 1 << 3,
+        Texture = 1 << 4,
+        Asset = 1 << 5,
+        State = 1 << 6,
+    }
 }