* Added some simstats to fill the simulator pane of the Statistics monitor.

* I stress, this is an initial implementation and the Agents(Child and Root) are definately obviously incorrect.

10 files changed, 335 insertions, 34 deletions

diff --git a/OpenSim/Region/Environment/Scenes/InnerScene.cs b/OpenSim/Region/Environment/Scenes/InnerScene.cs
index c0e07cb..b274d47 100644
--- a/OpenSim/Region/Environment/Scenes/InnerScene.cs
+++ b/OpenSim/Region/Environment/Scenes/InnerScene.cs
@@ -57,6 +57,9 @@ namespace OpenSim.Region.Environment.Scenes
         protected RegionInfo m_regInfo;
         protected Scene m_parentScene;
         protected PermissionManager PermissionsMngr;
+        protected int m_numRootAgents = 0;
+        protected int m_numPrim = 0;
+        protected int m_numChildAgents = 0;
 
         internal object m_syncRoot = new object();
 
@@ -133,11 +136,11 @@ namespace OpenSim.Region.Environment.Scenes
             }
         }
 
-        internal void UpdatePhysics(double elapsed)
+        internal float UpdatePhysics(double elapsed)
         {
             lock (m_syncRoot)
             {
-                _PhyScene.Simulate((float)elapsed);
+               return _PhyScene.Simulate((float)elapsed);
             }
         }
 
@@ -171,6 +174,7 @@ namespace OpenSim.Region.Environment.Scenes
             {
                 //  QuadTree.AddObject(sceneObject);
                 Entities.Add(sceneObject.UUID, sceneObject);
+                m_numPrim++;
             }
         }
 
@@ -183,6 +187,7 @@ namespace OpenSim.Region.Environment.Scenes
                     if (((SceneObjectGroup)obj).LocalId == localID)
                     {
                         m_parentScene.RemoveEntity((SceneObjectGroup)obj);
+                        m_numPrim--;
                         return;
                     }
                 }
@@ -198,10 +203,12 @@ namespace OpenSim.Region.Environment.Scenes
 
             if (child)
             {
+                m_numChildAgents++;
                 MainLog.Instance.Verbose("SCENE", m_regInfo.RegionName + ": Creating new child agent.");
             }
             else
             {
+                m_numRootAgents++;
                 MainLog.Instance.Verbose("SCENE", m_regInfo.RegionName + ": Creating new root agent.");
                 MainLog.Instance.Verbose("SCENE", m_regInfo.RegionName + ": Adding Physical agent.");
 
@@ -233,6 +240,47 @@ namespace OpenSim.Region.Environment.Scenes
 
             return newAvatar;
         }
+        public void SwapRootChildAgent(bool direction_RC_CR_T_F) 
+        {
+            if (direction_RC_CR_T_F)
+            {
+                m_numRootAgents--;
+                m_numChildAgents++;
+            }
+            else
+            {
+                m_numChildAgents--;
+                m_numRootAgents++;
+            }
+        }
+        public void removeUserCount(bool TypeRCTF)
+        {
+            if (TypeRCTF)
+            {
+                m_numRootAgents--;
+            }
+            else 
+            {
+                m_numChildAgents--;
+            }
+        }
+        public void RemoveAPrimCount()
+        {
+            m_numPrim--;
+        }
+        public void AddAPrimCount()
+        {
+            m_numPrim++;
+        }
+        public int GetChildAgentCount()
+        {
+            return m_numChildAgents;
+        }
+
+        public int GetRootAgentCount()
+        {
+            return m_numRootAgents;
+        }
         #endregion
 
         #region Get Methods
diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index f2b5643..5462e77 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -59,6 +59,8 @@ namespace OpenSim.Region.Environment.Scenes
         protected Timer m_heartbeatTimer = new Timer();
         protected Timer m_restartWaitTimer = new Timer();
 
+        protected SimStatsReporter m_statsReporter;
+
         protected List<RegionInfo> m_regionRestartNotifyList = new List<RegionInfo>();
         protected List<RegionInfo> m_neighbours = new List<RegionInfo>();
 
@@ -256,6 +258,9 @@ namespace OpenSim.Region.Environment.Scenes
 
             httpListener = httpServer;
             m_dumpAssetsToFile = dumpAssetsToFile;
+
+            m_statsReporter = new SimStatsReporter(regInfo);
+            m_statsReporter.OnSendStatsResult += SendSimStatsPackets;
         }
 
         #endregion
@@ -531,7 +536,7 @@ namespace OpenSim.Region.Environment.Scenes
             TimeSpan SinceLastFrame = DateTime.Now - m_lastupdate;
             // Aquire a lock so only one update call happens at once
             updateLock.WaitOne();
-
+            float physicsFPS = 0;
             try
             {
                 // Increment the frame counter
@@ -548,7 +553,7 @@ namespace OpenSim.Region.Environment.Scenes
                     m_innerScene.UpdateEntityMovement();
 
                 if (m_frame % m_update_physics == 0)
-                    m_innerScene.UpdatePhysics(
+                    physicsFPS = m_innerScene.UpdatePhysics(
                         Math.Max(SinceLastFrame.TotalSeconds, m_timespan)
                         );
 
@@ -569,6 +574,14 @@ namespace OpenSim.Region.Environment.Scenes
 
                 // if (m_frame%m_update_avatars == 0)
                 //   UpdateInWorldTime();
+                m_statsReporter.AddPhysicsFPS(physicsFPS);
+                m_statsReporter.SetTimeDilation(m_timedilation);
+                m_statsReporter.AddFPS(1);
+                m_statsReporter.AddAgentUpdates(1);
+                m_statsReporter.AddInPackets(0);
+                m_statsReporter.SetRootAgents(m_innerScene.GetRootAgentCount());
+                m_statsReporter.SetChildAgents(m_innerScene.GetChildAgentCount());
+                
             }
             catch (NotImplementedException)
             {
@@ -607,6 +620,19 @@ namespace OpenSim.Region.Environment.Scenes
             }
         }
 
+        private void SendSimStatsPackets(libsecondlife.Packets.SimStatsPacket pack)
+        {
+            List<ScenePresence> StatSendAgents = GetScenePresences();
+            foreach (ScenePresence agent in StatSendAgents)
+            {
+                if (!agent.IsChildAgent)
+                {
+                    agent.ControllingClient.OutPacket(pack, ThrottleOutPacketType.Task);
+
+                }
+            }
+
+        }
         private void UpdateLand()
         {
             if (m_LandManager.landPrimCountTainted)
@@ -939,6 +965,7 @@ namespace OpenSim.Region.Environment.Scenes
                     // subscribe to physics events.
                     rootPart.DoPhysicsPropertyUpdate(UsePhysics, true);
                 }
+                m_innerScene.AddAPrimCount();
             }
         }
 
@@ -967,6 +994,7 @@ namespace OpenSim.Region.Environment.Scenes
         public void AddEntity(SceneObjectGroup sceneObject)
         {
             m_innerScene.AddEntity(sceneObject);
+
         }
 
         public void RemoveEntity(SceneObjectGroup sceneObject)
@@ -976,6 +1004,7 @@ namespace OpenSim.Region.Environment.Scenes
                 m_LandManager.removePrimFromLandPrimCounts(sceneObject);
                 Entities.Remove(sceneObject.UUID);
                 m_LandManager.setPrimsTainted();
+                m_innerScene.RemoveAPrimCount();
             }
         }
 
@@ -1135,7 +1164,16 @@ namespace OpenSim.Region.Environment.Scenes
             m_eventManager.TriggerOnRemovePresence(agentID);
 
             ScenePresence avatar = GetScenePresence(agentID);
-            
+
+            if (avatar.IsChildAgent)
+            {
+                m_innerScene.removeUserCount(false);
+            }
+            else
+            {
+                m_innerScene.removeUserCount(true);
+            }
+
             Broadcast(delegate(IClientAPI client)
                       { 
                           try
@@ -1196,6 +1234,7 @@ namespace OpenSim.Region.Environment.Scenes
             {
                 Entities.Remove(entID);
                 m_storageManager.DataStore.RemoveObject(entID, m_regInfo.RegionID);
+                m_innerScene.RemoveAPrimCount();
                 return true;
             }
             return false;
@@ -1287,6 +1326,7 @@ namespace OpenSim.Region.Environment.Scenes
                 if (m_scenePresences.ContainsKey(agentID))
                 {
                     m_scenePresences[agentID].MakeRootAgent(position, isFlying);
+                    m_innerScene.SwapRootChildAgent(false);
                 }
             }
         }
@@ -1321,6 +1361,14 @@ namespace OpenSim.Region.Environment.Scenes
                 ScenePresence presence = m_innerScene.GetScenePresence(agentID);
                 if (presence != null)
                 {
+                    if (presence.IsChildAgent)
+                    {
+                        m_innerScene.removeUserCount(false);
+                    }
+                    else
+                    {
+                        m_innerScene.removeUserCount(true);
+                    }
                     // Tell a single agent to disconnect from the region.
                     libsecondlife.Packets.DisableSimulatorPacket disable = new libsecondlife.Packets.DisableSimulatorPacket();
                     presence.ControllingClient.OutPacket(disable, ThrottleOutPacketType.Task);
@@ -1617,6 +1665,16 @@ namespace OpenSim.Region.Environment.Scenes
                                                         if (controller.AgentId != godID && !childagent) // Do we really want to kick the initiator of this madness?
                                                         {
                                                             controller.Kick(Helpers.FieldToUTF8String(reason));
+                                                            
+                                                            if (childagent)
+                                                            {
+                                                                m_innerScene.removeUserCount(false);
+                                                            }
+                                                            else
+                                                            {
+                                                                m_innerScene.removeUserCount(true);
+                                                            }
+
                                                         }
                                                     }
                             );
@@ -1636,6 +1694,15 @@ namespace OpenSim.Region.Environment.Scenes
                     }
                     else
                     {
+                        if (m_scenePresences[agentID].IsChildAgent)
+                        {
+                            m_innerScene.removeUserCount(false);
+                        }
+                        else
+                        {
+                            m_innerScene.removeUserCount(true);
+                        }
+
                         m_scenePresences[agentID].ControllingClient.Kick(Helpers.FieldToUTF8String(reason));
                         m_scenePresences[agentID].ControllingClient.Close();
                     }
@@ -1848,7 +1915,10 @@ namespace OpenSim.Region.Environment.Scenes
         {
             return m_innerScene.ConvertLocalIDToFullID(localID);
         }
-
+        public void SwapRootAgentCount(bool rootChildChildRootTF)
+        {
+            m_innerScene.SwapRootChildAgent(rootChildChildRootTF);
+        }
         /// <summary>
         /// 
         /// </summary>
diff --git a/OpenSim/Region/Environment/Scenes/ScenePresence.cs b/OpenSim/Region/Environment/Scenes/ScenePresence.cs
index c82d066..0640067 100644
--- a/OpenSim/Region/Environment/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Environment/Scenes/ScenePresence.cs
@@ -465,6 +465,7 @@ namespace OpenSim.Region.Environment.Scenes
             AddToPhysicalScene();
             m_physicsActor.Flying = isFlying;
 
+            m_scene.SwapRootAgentCount(false);
             m_scene.CommsManager.UserProfileCacheService.UpdateUserInventory(m_uuid);
             //if (!m_gotAllObjectsInScene)
             //{
@@ -484,7 +485,7 @@ namespace OpenSim.Region.Environment.Scenes
         {
             Velocity = new LLVector3(0, 0, 0);
             m_isChildAgent = true;
-
+            m_scene.SwapRootAgentCount(true);
             RemoveFromPhysicalScene();
 
             //this.Pos = new LLVector3(128, 128, 70);  
diff --git a/OpenSim/Region/Environment/Scenes/SimStatsReporter.cs b/OpenSim/Region/Environment/Scenes/SimStatsReporter.cs
new file mode 100644
index 0000000..55bd6a7
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/SimStatsReporter.cs
@@ -0,0 +1,158 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Timers;
+using libsecondlife.Packets;
+using OpenSim.Framework;
+using Timer = System.Timers.Timer;
+
+namespace OpenSim.Region.Environment.Scenes
+{
+    public class SimStatsReporter
+    {
+        public delegate void SendStatResult(SimStatsPacket pack);
+        
+        public event SendStatResult OnSendStatsResult;
+
+        private enum Stats : uint 
+        {
+            TimeDilation = 0,
+            SimFPS = 1,
+            PhysicsFPS = 2,
+            AgentUpdates = 3,
+            Agents = 13,
+            ChildAgents = 14,
+            InPacketsPerSecond = 17,
+            OutPacketsPerSecond = 18,
+            UnAckedBytes = 24
+        }
+
+        private int statsUpdatesEveryMS = 1000;
+        private float m_timeDilation = 0;
+        private int m_fps = 0;
+        private float m_pfps = 0;
+        private float m_agentUpdates = 0;
+        private int m_rootAgents = 0;
+        private int m_childAgents = 0;
+        private int m_inPacketsPerSecond = 0;
+        private int m_outPacketsPerSecond = 0;
+        private int m_unAckedBytes = 0;
+        private RegionInfo ReportingRegion;
+
+        private Timer m_report = new Timer();
+        
+
+        public SimStatsReporter(RegionInfo regionData)
+        {
+            ReportingRegion = regionData;
+            m_report.AutoReset = true;
+            m_report.Interval = statsUpdatesEveryMS;
+            m_report.Elapsed += new ElapsedEventHandler(statsHeartBeat);
+            m_report.Enabled = true;
+        }
+
+        private void statsHeartBeat(object sender, EventArgs e)
+        {
+            m_report.Enabled = false;
+            SimStatsPacket statpack = new SimStatsPacket();
+            SimStatsPacket.StatBlock[] sb = new SimStatsPacket.StatBlock[9];
+            statpack.Region = new SimStatsPacket.RegionBlock();
+            statpack.Region.RegionX = ReportingRegion.RegionLocX;
+            statpack.Region.RegionY = ReportingRegion.RegionLocY;
+            statpack.Region.RegionFlags = (uint)21;
+            statpack.Region.ObjectCapacity = (uint)15000;
+
+            sb[0] = new SimStatsPacket.StatBlock();
+            sb[0].StatID = (uint)Stats.TimeDilation;
+            sb[0].StatValue = (m_timeDilation);
+
+            sb[1] = new SimStatsPacket.StatBlock();
+            sb[1].StatID = (uint)Stats.SimFPS;
+            sb[1].StatValue = (int)(m_fps);
+
+            sb[2] = new SimStatsPacket.StatBlock();
+            sb[2].StatID = (uint)Stats.PhysicsFPS;
+            sb[2].StatValue = (m_pfps / statsUpdatesEveryMS);
+
+            sb[3] = new SimStatsPacket.StatBlock();
+            sb[3].StatID = (uint)Stats.AgentUpdates;
+            sb[3].StatValue = (m_agentUpdates / statsUpdatesEveryMS);
+
+            sb[4] = new SimStatsPacket.StatBlock();
+            sb[4].StatID = (uint)Stats.Agents;
+            sb[4].StatValue = m_rootAgents;
+
+            sb[5] = new SimStatsPacket.StatBlock();
+            sb[5].StatID = (uint)Stats.ChildAgents;
+            sb[5].StatValue = m_childAgents;
+
+            sb[6] = new SimStatsPacket.StatBlock();
+            sb[6].StatID = (uint)Stats.InPacketsPerSecond;
+            sb[6].StatValue = (int)(m_inPacketsPerSecond / statsUpdatesEveryMS);
+
+            sb[7] = new SimStatsPacket.StatBlock();
+            sb[7].StatID = (uint)Stats.OutPacketsPerSecond;
+            sb[7].StatValue = (int)(m_outPacketsPerSecond / statsUpdatesEveryMS);
+
+            sb[8] = new SimStatsPacket.StatBlock();
+            sb[8].StatID = (uint)Stats.UnAckedBytes;
+            sb[8].StatValue = (int) (m_unAckedBytes / statsUpdatesEveryMS);
+            
+            statpack.Stat = sb;
+
+            if (OnSendStatsResult != null)
+            {
+                OnSendStatsResult(statpack);
+            }
+            resetvalues();
+            m_report.Enabled = true;
+        }
+
+        private void resetvalues()
+        {
+            m_fps = 0;
+            m_pfps = 0;
+            m_agentUpdates = 0;
+            m_inPacketsPerSecond = 0;
+            m_outPacketsPerSecond = 0;
+            m_unAckedBytes = 0;
+
+        }
+        public void SetTimeDilation(float td)
+        {
+            m_timeDilation = td;
+        }
+        public void SetRootAgents(int rootAgents)
+        {
+            m_rootAgents = rootAgents;
+        }
+        public void SetChildAgents(int childAgents)
+        {
+            m_childAgents = childAgents;
+        }
+        public void AddFPS(int frames)
+        {
+            m_fps += frames;
+        }
+        public void AddPhysicsFPS(float frames)
+        {
+            m_pfps += frames;
+        }
+        public void AddAgentUpdates(float numUpdates)
+        {
+            m_agentUpdates += numUpdates;
+        }
+        public void AddInPackets(int numPackets)
+        {
+            m_inPacketsPerSecond += numPackets;
+        }
+        public void AddOutPackets(int numPackets)
+        {
+            m_outPacketsPerSecond += numPackets;
+        }
+        public void AddunAckedBytes(int numBytes)
+        {
+            m_unAckedBytes += numBytes;
+        }
+    }
+}
diff --git a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs
index 6b647b1..df3ebb9 100644
--- a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs
+++ b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs
@@ -118,8 +118,9 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
         {
 
         }
-        public override void Simulate(float timeStep)
+        public override float Simulate(float timeStep)
         {
+            float fps = 0;
             for (int i = 0; i < _actors.Count; ++i)
             {
                 BasicActor actor = _actors[i];
@@ -164,6 +165,7 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
                     actor.Velocity.Z = 0;
                 }
             }
+            return fps;
         }
 
         public override void GetResults()
diff --git a/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs b/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs
index 4b1043a..1760e50 100644
--- a/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs
+++ b/OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs
@@ -515,20 +515,26 @@ namespace OpenSim.Region.Physics.BulletXPlugin
         {
 
         }
-        public override void Simulate(float timeStep)
+        public override float Simulate(float timeStep)
         {
+            float fps = 0;
             lock (BulletXLock)
             {
                 //Try to remove garbage
                 RemoveForgottenRigidBodies();
                 //End of remove
                 MoveAllObjects(timeStep);
+               
+                
+                fps = (timeStep * simulationSubSteps);
+                
                 ddWorld.StepSimulation(timeStep, simulationSubSteps, timeStep);
                 //Extra Heightmap Validation: BulletX's HeightFieldTerrain somestimes doesn't work so fine.
                 ValidateHeightForAll();
                 //End heightmap validation.
                 UpdateKineticsForAll();
             }
+            return fps;
         }
 
         private void MoveAllObjects(float timeStep)
diff --git a/OpenSim/Region/Physics/Manager/PhysicsScene.cs b/OpenSim/Region/Physics/Manager/PhysicsScene.cs
index 71cba22..c63a66d 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsScene.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsScene.cs
@@ -70,7 +70,7 @@ namespace OpenSim.Region.Physics.Manager
                                                   PhysicsVector size, Quaternion rotation, bool isPhysical);
         public abstract void AddPhysicsActorTaint(PhysicsActor prim);
 
-        public abstract void Simulate(float timeStep);
+        public abstract float Simulate(float timeStep);
 
         public abstract void GetResults();
 
@@ -126,11 +126,12 @@ namespace OpenSim.Region.Physics.Manager
             {
 
             }
-            public override void Simulate(float timeStep)
+            public override float Simulate(float timeStep)
             {
                 m_workIndicator = (m_workIndicator + 1)%10;
 
                 //MainLog.Instance.SetStatus(m_workIndicator.ToString());
+                return 0f;
             }
 
             public override void GetResults()
diff --git a/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs b/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
index 5234cd3..a765878 100644
--- a/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
+++ b/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
@@ -787,9 +787,10 @@ namespace OpenSim.Region.Physics.OdePlugin
             }
         }
 
-        public override void Simulate(float timeStep)
+        public override float Simulate(float timeStep)
         {
-            
+            float fps = 0;
+
             step_time += timeStep;
 
                 
@@ -800,32 +801,40 @@ namespace OpenSim.Region.Physics.OdePlugin
                 
 
 
-                if (step_time >= m_SkipFramesAtms)
-                {
-                    // Instead of trying to catch up, it'll do one physics frame only
-                    step_time = ODE_STEPSIZE;
-                    this.m_physicsiterations = 5;
+            if (step_time >= m_SkipFramesAtms)
+            {
+                // Instead of trying to catch up, it'll do one physics frame only
+                step_time = ODE_STEPSIZE;
+                this.m_physicsiterations = 5;
+            }
+            else
+            {
+                m_physicsiterations = 10;
+            }
+            lock (OdeLock)
+            {
+            // Process 10 frames if the sim is running normal..  
+            // process 5 frames if the sim is running slow
+                try{
+                    d.WorldSetQuickStepNumIterations(world, m_physicsiterations);
                 }
-                else
+                catch (System.StackOverflowException)
                 {
-                    m_physicsiterations = 10;
+                    MainLog.Instance.Error("PHYSICS", "The operating system wasn't able to allocate enough memory for the simulation.  Restarting the sim.");
+                    base.TriggerPhysicsBasedRestart();
                 }
-                lock (OdeLock)
-                {
-                // Process 10 frames if the sim is running normal..  
-                // process 5 frames if the sim is running slow
-                    try{
-                        d.WorldSetQuickStepNumIterations(world, m_physicsiterations);
-                    }
-                    catch (System.StackOverflowException)
-                    {
-                        MainLog.Instance.Error("PHYSICS", "The operating system wasn't able to allocate enough memory for the simulation.  Restarting the sim.");
-                        base.TriggerPhysicsBasedRestart();
-                    }
 
                 int i = 0;
+               
+                
+                // Figure out the Frames Per Second we're going at.
+                
+                    fps = (((step_time / ODE_STEPSIZE * m_physicsiterations)*2)* 10);
+               
+
                 while (step_time > 0.0f)
                 {
+
                     foreach (OdeCharacter actor in _characters)
                     {
                             actor.Move(timeStep);
@@ -875,6 +884,7 @@ namespace OpenSim.Region.Physics.OdePlugin
                     }
                 }
             }
+            return fps;
         }
 
         public override void GetResults()
diff --git a/OpenSim/Region/Physics/POSPlugin/POSPlugin.cs b/OpenSim/Region/Physics/POSPlugin/POSPlugin.cs
index 4355c5e..efc30fe 100644
--- a/OpenSim/Region/Physics/POSPlugin/POSPlugin.cs
+++ b/OpenSim/Region/Physics/POSPlugin/POSPlugin.cs
@@ -169,10 +169,12 @@ namespace OpenSim.Region.Physics.POSPlugin
 
         }
 
-        public override void Simulate(float timeStep)
+        public override float Simulate(float timeStep)
         {
+            float fps = 0;
             for (int i = 0; i < _characters.Count; ++i)
             {
+                fps++;
                 POSCharacter character = _characters[i];
 
                 float oldposX = character.Position.X;
@@ -286,6 +288,7 @@ namespace OpenSim.Region.Physics.POSPlugin
                     character._velocity.Z = (character.Position.Z - oldposZ) / timeStep;
                 }
             }
+            return fps;
         }
 
         public override void GetResults()
diff --git a/OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs b/OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs
index 5d22eeb..bc28626 100644
--- a/OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs
+++ b/OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs
@@ -139,8 +139,9 @@ namespace OpenSim.Region.Physics.PhysXPlugin
         {
 
         }
-        public override void Simulate(float timeStep)
+        public override float Simulate(float timeStep)
         {
+            float fps = 0f;
             try
             {
                 foreach (PhysXCharacter actor in _characters)
@@ -160,6 +161,7 @@ namespace OpenSim.Region.Physics.PhysXPlugin
             {
                 Console.WriteLine(e.Message);
             }
+            return fps;
         }
 
         public override void GetResults()