14 files changed, 191 insertions, 227 deletions

diff --git a/OpenSim/Framework/Statistics/BaseStatsCollector.cs b/OpenSim/Framework/Statistics/BaseStatsCollector.cs
index a1841c5..c9e57ce 100644
--- a/OpenSim/Framework/Statistics/BaseStatsCollector.cs
+++ b/OpenSim/Framework/Statistics/BaseStatsCollector.cs
@@ -26,8 +26,8 @@
  */
 
 using System;
+using System.Diagnostics;
 using System.Text;
-
 using OpenMetaverse;
 using OpenMetaverse.StructuredData;
 
@@ -46,8 +46,12 @@ namespace OpenSim.Framework.Statistics
             sb.Append(Environment.NewLine);
             sb.Append(
                 string.Format(
-                    "Allocated to OpenSim : {0} MB" + Environment.NewLine,
+                    "Allocated to OpenSim objects: {0} MB\n",
                     Math.Round(GC.GetTotalMemory(false) / 1024.0 / 1024.0)));
+            sb.Append(
+                string.Format(
+                    "Process memory              : {0} MB\n",
+                    Math.Round(Process.GetCurrentProcess().WorkingSet64 / 1024.0 / 1024.0)));
 
             return sb.ToString();
         }
diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index efa4a7b..31fa101 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -81,12 +81,15 @@ namespace OpenSim.Framework
 
         private static uint nextXferID = 5000;
         private static Random randomClass = new Random();
+
         // Get a list of invalid file characters (OS dependent)
         private static string regexInvalidFileChars = "[" + new String(Path.GetInvalidFileNameChars()) + "]";
         private static string regexInvalidPathChars = "[" + new String(Path.GetInvalidPathChars()) + "]";
         private static object XferLock = new object();
-        /// <summary>Thread pool used for Util.FireAndForget if
-        /// FireAndForgetMethod.SmartThreadPool is used</summary>
+
+        /// <summary>
+        /// Thread pool used for Util.FireAndForget if FireAndForgetMethod.SmartThreadPool is used
+        /// </summary>
         private static SmartThreadPool m_ThreadPool;
 
         // Unix-epoch starts at January 1st 1970, 00:00:00 UTC. And all our times in the server are (or at least should be) in UTC.
diff --git a/OpenSim/Region/Application/OpenSim.cs b/OpenSim/Region/Application/OpenSim.cs
index 6fba249..e955a58 100644
--- a/OpenSim/Region/Application/OpenSim.cs
+++ b/OpenSim/Region/Application/OpenSim.cs
@@ -503,7 +503,11 @@ namespace OpenSim
                     string currentCommand;
                     while ((currentCommand = readFile.ReadLine()) != null)
                     {
-                        if (currentCommand != String.Empty)
+                        currentCommand = currentCommand.Trim();
+                        if (!(currentCommand == ""
+                            || currentCommand.StartsWith(";")
+                            || currentCommand.StartsWith("//")
+                            || currentCommand.StartsWith("#")))
                         {
                             m_log.Info("[COMMANDFILE]: Running '" + currentCommand + "'");
                             m_console.RunCommand(currentCommand);
diff --git a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
index c303d6d..61d604f 100644
--- a/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs
@@ -26,8 +26,10 @@
  */
 
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Reflection;
 using System.Security;
 using log4net;
@@ -45,8 +47,6 @@ namespace OpenSim.Region.CoreModules.World.Estate
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
-        private delegate void LookupUUIDS(List<UUID> uuidLst);
-
         public Scene Scene { get; private set; }
         public IUserManagement UserManager { get; private set; }
         
@@ -876,98 +876,77 @@ namespace OpenSim.Region.CoreModules.World.Estate
             if (!Scene.Permissions.CanIssueEstateCommand(remoteClient.AgentId, false))
                 return;
 
-            Dictionary<uint, float> SceneData = new Dictionary<uint,float>();
+            Dictionary<uint, float> sceneData = null;
             List<UUID> uuidNameLookupList = new List<UUID>();
 
             if (reportType == 1)
             {
-                SceneData = Scene.PhysicsScene.GetTopColliders();
+                sceneData = Scene.PhysicsScene.GetTopColliders();
             }
             else if (reportType == 0)
             {
-                SceneData = Scene.SceneGraph.GetTopScripts();
+                IScriptModule scriptModule = Scene.RequestModuleInterface<IScriptModule>();
+
+                if (scriptModule != null)
+                    sceneData = scriptModule.GetObjectScriptsExecutionTimes();
             }
 
             List<LandStatReportItem> SceneReport = new List<LandStatReportItem>();
-            lock (SceneData)
+            if (sceneData != null)
             {
-                foreach (uint obj in SceneData.Keys)
+                var sortedSceneData
+                    = sceneData.Select(
+                        item => new { Measurement = item.Value, Part = Scene.GetSceneObjectPart(item.Key) });
+
+                sortedSceneData.OrderBy(item => item.Measurement);
+
+                int items = 0;
+
+                foreach (var entry in sortedSceneData)
                 {
-                    SceneObjectPart prt = Scene.GetSceneObjectPart(obj);
-                    if (prt != null)
+                    // The object may have been deleted since we received the data.
+                    if (entry.Part == null)
+                        continue;
+
+                    // Don't show scripts that haven't executed or where execution time is below one microsecond in
+                    // order to produce a more readable report.
+                    if (entry.Measurement < 0.001)
+                        continue;
+
+                    items++;
+                    SceneObjectGroup so = entry.Part.ParentGroup;
+
+                    LandStatReportItem lsri = new LandStatReportItem();
+                    lsri.LocationX = so.AbsolutePosition.X;
+                    lsri.LocationY = so.AbsolutePosition.Y;
+                    lsri.LocationZ = so.AbsolutePosition.Z;
+                    lsri.Score = entry.Measurement;
+                    lsri.TaskID = so.UUID;
+                    lsri.TaskLocalID = so.LocalId;
+                    lsri.TaskName = entry.Part.Name;
+                    lsri.OwnerName = UserManager.GetUserName(so.OwnerID);
+
+                    if (filter.Length != 0)
                     {
-                        SceneObjectGroup sog = prt.ParentGroup;
-                        LandStatReportItem lsri = new LandStatReportItem();
-                        lsri.LocationX = sog.AbsolutePosition.X;
-                        lsri.LocationY = sog.AbsolutePosition.Y;
-                        lsri.LocationZ = sog.AbsolutePosition.Z;
-                        lsri.Score = SceneData[obj];
-                        lsri.TaskID = sog.UUID;
-                        lsri.TaskLocalID = sog.LocalId;
-                        lsri.TaskName = sog.GetPartName(obj);
-                        lsri.OwnerName = "waiting";
-                        lock (uuidNameLookupList)
-                            uuidNameLookupList.Add(sog.OwnerID);
-
-                        if (filter.Length != 0)
+                        if ((lsri.OwnerName.Contains(filter) || lsri.TaskName.Contains(filter)))
                         {
-                            if ((lsri.OwnerName.Contains(filter) || lsri.TaskName.Contains(filter)))
-                            {
-                            }
-                            else
-                            {
-                                continue;
-                            }
                         }
-
-                        SceneReport.Add(lsri);
+                        else
+                        {
+                            continue;
+                        }
                     }
+
+                    SceneReport.Add(lsri);
+
+                    if (items >= 100)
+                        break;
                 }
             }
 
             remoteClient.SendLandStatReply(reportType, requestFlags, (uint)SceneReport.Count,SceneReport.ToArray());
-
-            if (uuidNameLookupList.Count > 0)
-                LookupUUID(uuidNameLookupList);
         }
 
-        private static void LookupUUIDSCompleted(IAsyncResult iar)
-        {
-            LookupUUIDS icon = (LookupUUIDS)iar.AsyncState;
-            icon.EndInvoke(iar);
-        }
-        
-        private void LookupUUID(List<UUID> uuidLst)
-        {
-            LookupUUIDS d = LookupUUIDsAsync;
-
-            d.BeginInvoke(uuidLst,
-                          LookupUUIDSCompleted,
-                          d);
-        }
-        
-        private void LookupUUIDsAsync(List<UUID> uuidLst)
-        {
-            UUID[] uuidarr;
-
-            lock (uuidLst)
-            {
-                uuidarr = uuidLst.ToArray();
-            }
-
-            for (int i = 0; i < uuidarr.Length; i++)
-            {
-                // string lookupname = m_scene.CommsManager.UUIDNameRequestString(uuidarr[i]);
-
-                IUserManagement userManager = Scene.RequestModuleInterface<IUserManagement>();
-                if (userManager != null)
-                    userManager.GetUserName(uuidarr[i]);
-                
-                // we drop it.  It gets cached though...  so we're ready for the next request.
-                // diva commnent 11/21/2010: uh?!? wft?
-                // justincc comment 21/01/2011: A side effect of userManager.GetUserName() I presume.
-            }
-        }
         #endregion
 
         #region Outgoing Packets
diff --git a/OpenSim/Region/Framework/Interfaces/IScriptModule.cs b/OpenSim/Region/Framework/Interfaces/IScriptModule.cs
index 18c45dd..9cab2e1 100644
--- a/OpenSim/Region/Framework/Interfaces/IScriptModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/IScriptModule.cs
@@ -27,6 +27,7 @@
 
 using System;
 using System.Collections;
+using System.Collections.Generic;
 using OpenMetaverse;
 
 namespace OpenSim.Region.Framework.Interfaces
@@ -74,5 +75,14 @@ namespace OpenSim.Region.Framework.Interfaces
         /// Starts the processing threads.
         /// </summary>
         void StartProcessing();
+
+        /// <summary>
+        /// Get the execution times of all scripts in each object.
+        /// </summary>
+        /// <returns>
+        /// A dictionary where the key is the root object ID of a linkset
+        /// and the value is a representative execution time in milliseconds of all scripts in that linkset.
+        /// </returns>
+        Dictionary<uint, float> GetObjectScriptsExecutionTimes();
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index bc3400a..5c542d6 100644
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -733,6 +733,7 @@ namespace OpenSim.Region.Framework.Scenes
         #endregion
 
         #region Get Methods
+        
         /// <summary>
         /// Get the controlling client for the given avatar, if there is one.
         ///
@@ -1074,36 +1075,6 @@ namespace OpenSim.Region.Framework.Scenes
             return Entities.GetEntities();
         }
 
-        public Dictionary<uint, float> GetTopScripts()
-        {
-            Dictionary<uint, float> topScripts = new Dictionary<uint, float>();
-
-            EntityBase[] EntityList = GetEntities();
-            int limit = 0;
-            foreach (EntityBase ent in EntityList)
-            {
-                if (ent is SceneObjectGroup)
-                {
-                    SceneObjectGroup grp = (SceneObjectGroup)ent;
-                    if ((grp.RootPart.GetEffectiveObjectFlags() & (uint)PrimFlags.Scripted) != 0)
-                    {
-                        if (grp.scriptScore >= 0.01)
-                        {
-                            topScripts.Add(grp.LocalId, grp.scriptScore);
-                            limit++;
-                            if (limit >= 100)
-                            {
-                                break;
-                            }
-                        }
-                        grp.scriptScore = 0;
-                    }
-                }
-            }
-
-            return topScripts;
-        }
-
         #endregion
 
         #region Other Methods
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index 878476e..afb5ccf 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -229,8 +229,6 @@ namespace OpenSim.Region.Framework.Scenes
             get { return RootPart.VolumeDetectActive; }
         }
 
-        public float scriptScore;
-
         private Vector3 lastPhysGroupPos;
         private Quaternion lastPhysGroupRot;
 
@@ -1184,12 +1182,7 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void AddScriptLPS(int count)
         {
-            if (scriptScore + count >= float.MaxValue - count)
-                scriptScore = 0;
-
-            scriptScore += (float)count;
-            SceneGraph d = m_scene.SceneGraph;
-            d.AddToScriptLPS(count);
+            m_scene.SceneGraph.AddToScriptLPS(count);
         }
 
         public void AddActiveScriptCount(int count)
diff --git a/OpenSim/Region/ScriptEngine/Interfaces/IScriptInstance.cs b/OpenSim/Region/ScriptEngine/Interfaces/IScriptInstance.cs
index 8762642..b04f6b6 100644
--- a/OpenSim/Region/ScriptEngine/Interfaces/IScriptInstance.cs
+++ b/OpenSim/Region/ScriptEngine/Interfaces/IScriptInstance.cs
@@ -78,12 +78,38 @@ namespace OpenSim.Region.ScriptEngine.Interfaces
         /// </summary>
         string State { get; set; }
 
+        /// <summary>
+        /// Time the script was last started
+        /// </summary>
+        DateTime TimeStarted { get; }
+
+        /// <summary>
+        /// Tick the last measurement period was started.
+        /// </summary>
+        long MeasurementPeriodTickStart { get; }
+
+        /// <summary>
+        /// Ticks spent executing in the last measurement period.
+        /// </summary>
+        long MeasurementPeriodExecutionTime { get; }
+
         IScriptEngine Engine { get; }
         UUID AppDomain { get; set; }
         string PrimName { get; }
         string ScriptName { get; }
         UUID ItemID { get; }
         UUID ObjectID { get; }
+
+        /// <summary>
+        /// UUID of the root object for the linkset that the script is in.
+        /// </summary>
+        UUID RootObjectID { get; }
+
+        /// <summary>
+        /// Local id of the root object for the linkset that the script is in.
+        /// </summary>
+        uint RootLocalID { get; }
+
         uint LocalID { get; }
         UUID AssetID { get; }
         Queue EventQueue { get; }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs b/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
index 968351b..6e36742 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Instance/ScriptInstance.cs
@@ -164,6 +164,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
         public uint LocalID { get; private set; }
 
+        public UUID RootObjectID { get; private set; }
+
+        public uint RootLocalID { get; private set; }
+
         public UUID AssetID { get; private set; }
 
         public Queue EventQueue { get; private set; }
@@ -172,6 +176,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
         public TaskInventoryItem ScriptTask { get; private set; }
 
+        public DateTime TimeStarted { get; private set; }
+
+        public long MeasurementPeriodTickStart { get; private set; }
+
+        public long MeasurementPeriodExecutionTime { get; private set; }
+
+        public static readonly long MaxMeasurementPeriod = 30 * TimeSpan.TicksPerMinute;
+
         public void ClearQueue()
         {
             m_TimerQueued = false;
@@ -190,6 +202,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
             Engine = engine;
             LocalID = part.LocalId;
             ObjectID = part.UUID;
+            RootLocalID = part.ParentGroup.LocalId;
+            RootObjectID = part.ParentGroup.UUID;
             ItemID = itemID;
             AssetID = assetID;
             PrimName = primName;
@@ -458,6 +472,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
 
                 Running = true;
 
+                TimeStarted = DateTime.Now;
+                MeasurementPeriodTickStart = Util.EnvironmentTickCount();
+                MeasurementPeriodExecutionTime = 0;
+
                 if (EventQueue.Count > 0)
                 {
                     if (m_CurrentWorkItem == null)
@@ -710,8 +728,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
                             m_EventStart = DateTime.Now;
                             m_InEvent = true;
 
+                            int start = Util.EnvironmentTickCount();
+
+                            // Reset the measurement period when we reach the end of the current one.
+                            if (start - MeasurementPeriodTickStart > MaxMeasurementPeriod)
+                                MeasurementPeriodTickStart = start;
+
                             m_Script.ExecuteEvent(State, data.EventName, data.Params);
 
+                            MeasurementPeriodExecutionTime += Util.EnvironmentTickCount() - start;
+
                             m_InEvent = false;
                             m_CurrentEvent = String.Empty;
 
@@ -720,7 +746,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Instance
                                 // This will be the very first event we deliver
                                 // (state_entry) in default state
                                 //
-
                                 SaveState(m_Assembly);
 
                                 m_SaveState = false;
diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
index 105d97d..3697f78 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
@@ -1083,7 +1083,6 @@ namespace OpenSim.Region.ScriptEngine.XEngine
 
                 if (!m_PrimObjects[localID].Contains(itemID))
                     m_PrimObjects[localID].Add(itemID);
-
             }
 
             if (!m_Assemblies.ContainsKey(assetID))
@@ -1891,6 +1890,59 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             }
         }
 
+        public Dictionary<uint, float> GetObjectScriptsExecutionTimes()
+        {
+            long tickNow = Util.EnvironmentTickCount();
+            Dictionary<uint, float> topScripts = new Dictionary<uint, float>();
+
+            lock (m_Scripts)
+            {
+                foreach (IScriptInstance si in m_Scripts.Values)
+                {
+                    if (!topScripts.ContainsKey(si.LocalID))
+                        topScripts[si.RootLocalID] = 0;
+
+//                    long ticksElapsed = tickNow - si.MeasurementPeriodTickStart;
+//                    float framesElapsed = ticksElapsed / (18.1818 * TimeSpan.TicksPerMillisecond);
+
+                    // Execution time of the script adjusted by it's measurement period to make scripts started at
+                    // different times comparable.
+//                    float adjustedExecutionTime
+//                        = (float)si.MeasurementPeriodExecutionTime
+//                            / ((float)(tickNow - si.MeasurementPeriodTickStart) / ScriptInstance.MaxMeasurementPeriod)
+//                            / TimeSpan.TicksPerMillisecond;
+
+                    long ticksElapsed = tickNow - si.MeasurementPeriodTickStart;
+
+                    // Avoid divide by zerp
+                    if (ticksElapsed == 0)
+                        ticksElapsed = 1;
+
+                    // Scale execution time to the ideal 55 fps frame time for these reasons.
+                    //
+                    // 1) XEngine does not execute scripts per frame, unlike other script engines.  Hence, there is no
+                    // 'script execution time per frame', which is the original purpose of this value.
+                    //
+                    // 2) Giving the raw execution times is misleading since scripts start at different times, making
+                    // it impossible to compare scripts.
+                    //
+                    // 3) Scaling the raw execution time to the time that the script has been running is better but
+                    // is still misleading since a script that has just been rezzed may appear to have been running
+                    // for much longer.
+                    //
+                    // 4) Hence, we scale execution time to an idealised frame time (55 fps).  This is also not perfect
+                    // since the figure does not represent actual execution time and very hard running scripts will
+                    // never exceed 18ms (though this is a very high number for script execution so is a warning sign).
+                    float adjustedExecutionTime
+                        = ((float)si.MeasurementPeriodExecutionTime / ticksElapsed) * 18.1818f;
+
+                    topScripts[si.RootLocalID] += adjustedExecutionTime;
+                }
+            }
+
+            return topScripts;
+        }
+
         public void SuspendScript(UUID itemID)
         {
 //            m_log.DebugFormat("[XEngine]: Received request to suspend script with ID {0}", itemID);
diff --git a/bin/ScriptEngines/Default.lsl b/bin/ScriptEngines/Default.lsl
deleted file mode 100644
index ade855d..0000000
--- a/bin/ScriptEngines/Default.lsl
+++ /dev/null
@@ -1,104 +0,0 @@
-// autogenerated by generate_default_lsl.rb
-integer touch_count = 0;
-
-default {
-  touch_start(integer total_number) {
-    float angle45 = PI/4.0; // 45 degrees
-    float angle30 = PI/6.0; // 30 degrees
-    float sqrt2 = llSqrt(2.0);
-    if((llFabs(-1.5) != 1.5) || (llFabs(10.4) != 10.4)) {
-      llShout(0, "Houston, we have a big problem! llFabs() does not work! Need it for other tests!");
-    }
-    llSetText("This is a text by llSetText", <1,0,0>, 1);
-    llWhisper(0, "llWhispering a few random numbers between 0 and 100: " + llFrand(100) + "," + llFrand(100) + "," + llFrand(100) + "," + llFrand(100));
-    llShout(0, "llShouting the unix time: " + llGetUnixTime() + ", and region corner: " + llGetRegionCorner());
-    llShout(1, "Shouting a random number between 0 and 100 on the channel#1: " + llFrand(100));
-    if (llAbs(-1) != 1) {
-      llSay(0, "Assert failed: llAbs(-1) != 1");
-    }
-    if (llAbs(10) != 10) {
-      llSay(0, "Assert failed: llAbs(10) != 10");
-    }
-    if (llFabs((llCos(angle45) - sqrt2/2.0) - 0) > 0.000001) {
-      llSay(0, "Assert failed: (llCos(angle45) - sqrt2/2.0) differs from 0 by more than 0.000001");
-      llSay(0, " --> The actual result: " + (llCos(angle45) - sqrt2/2.0));
-    }
-    if (llFabs((llSin(angle30) - 0.5) - 0) > 0.000001) {
-      llSay(0, "Assert failed: (llSin(angle30) - 0.5) differs from 0 by more than 0.000001");
-      llSay(0, " --> The actual result: " + (llSin(angle30) - 0.5));
-    }
-    if (llFabs((llAtan2(1, 1)*4 - PI) - 0) > 0.000001) {
-      llSay(0, "Assert failed: (llAtan2(1, 1)*4 - PI) differs from 0 by more than 0.000001");
-      llSay(0, " --> The actual result: " + (llAtan2(1, 1)*4 - PI));
-    }
-    if (llFabs((llTan(PI)) - 0) > 0.000001) {
-      llSay(0, "Assert failed: (llTan(PI)) differs from 0 by more than 0.000001");
-      llSay(0, " --> The actual result: " + (llTan(PI)));
-    }
-    if (llFloor(2.4) != 2) {
-      llSay(0, "Assert failed: llFloor(2.4) != 2");
-    }
-    if (llCeil(2.4) != 3) {
-      llSay(0, "Assert failed: llCeil(2.4) != 3");
-    }
-    if (llRound(2.4) != 2) {
-      llSay(0, "Assert failed: llRound(2.4) != 2");
-    }
-    if (llFloor(2.5) != 2) {
-      llSay(0, "Assert failed: llFloor(2.5) != 2");
-    }
-    if (llCeil(2.5) != 3) {
-      llSay(0, "Assert failed: llCeil(2.5) != 3");
-    }
-    if (llRound(2.5) != 3) {
-      llSay(0, "Assert failed: llRound(2.5) != 3");
-    }
-    if (llFloor(2.51) != 2) {
-      llSay(0, "Assert failed: llFloor(2.51) != 2");
-    }
-    if (llCeil(2.51) != 3) {
-      llSay(0, "Assert failed: llCeil(2.51) != 3");
-    }
-    if (llRound(2.51) != 3) {
-      llSay(0, "Assert failed: llRound(2.51) != 3");
-    }
-    if (llFloor(3.49) != 3) {
-      llSay(0, "Assert failed: llFloor(3.49) != 3");
-    }
-    if (llCeil(3.49) != 4) {
-      llSay(0, "Assert failed: llCeil(3.49) != 4");
-    }
-    if (llRound(3.49) != 3) {
-      llSay(0, "Assert failed: llRound(3.49) != 3");
-    }
-    if (llFloor(3.5000001) != 3) {
-      llSay(0, "Assert failed: llFloor(3.5000001) != 3");
-    }
-    if (llCeil(3.5000001) != 4) {
-      llSay(0, "Assert failed: llCeil(3.5000001) != 4");
-    }
-    if (llRound(3.5000001) != 4) {
-      llSay(0, "Assert failed: llRound(3.5000001) != 4");
-    }
-    if (llFloor(3.51) != 3) {
-      llSay(0, "Assert failed: llFloor(3.51) != 3");
-    }
-    if (llCeil(3.51) != 4) {
-      llSay(0, "Assert failed: llCeil(3.51) != 4");
-    }
-    if (llRound(3.51) != 4) {
-      llSay(0, "Assert failed: llRound(3.51) != 4");
-    }
-    if ((llFabs(0-llPow(2, 16))) != 65536) {
-      llSay(0, "Assert failed: (llFabs(0-llPow(2, 16))) != 65536");
-    }
-    if (llMD5String("Hello, Avatar!",0) != "112abd47ceaae1c05a826828650434a6") {
-      llSay(0, "Assert failed: llMD5String('Hello, Avatar!',0) != '112abd47ceaae1c05a826828650434a6'");
-    }
-    if (llModPow(2, 16, 37) != 9) {
-      llSay(0, "Assert failed: llModPow(2, 16, 37) != 9");
-    }
-    touch_count++;
-    llSay(0, "Object was touched. Touch count: " + touch_count);
-  }
-}
diff --git a/bin/shutdown_commands.txt b/bin/shutdown_commands.txt
index ec76ec2..4397749 100644
--- a/bin/shutdown_commands.txt
+++ b/bin/shutdown_commands.txt
@@ -1 +1,3 @@
-backup
+; You can place simulator console commands here to execute when the simulator is shut down
+; e.g. show stats
+; Lines starting with ; are comments
diff --git a/bin/startup_commands.txt b/bin/startup_commands.txt
new file mode 100644
index 0000000..1abfa64
--- /dev/null
+++ b/bin/startup_commands.txt
@@ -0,0 +1,3 @@
+; You can place region console commands here to execute once the simulator has finished starting up 
+; e.g. show stats
+; Lines start with ; are comments.
diff --git a/bin/startup_commands.txt.example b/bin/startup_commands.txt.example
deleted file mode 100644
index 3dba4b3..0000000
--- a/bin/startup_commands.txt.example
+++ /dev/null
@@ -1,4 +0,0 @@
-terrain load-tile f32 islandterrain_1024x512.raw 512 1024 1000 1000
-terrain multiply 0.1
-terrain add 5
-