Merge branch 'master' into careminster

Conflicts:
	OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
	OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs

12 files changed, 240 insertions, 20 deletions

diff --git a/OpenSim/Data/SQLite/SQLiteFriendsData.cs b/OpenSim/Data/SQLite/SQLiteFriendsData.cs
index b14c348..5f68977 100644
--- a/OpenSim/Data/SQLite/SQLiteFriendsData.cs
+++ b/OpenSim/Data/SQLite/SQLiteFriendsData.cs
@@ -75,7 +75,7 @@ namespace OpenSim.Data.SQLite
             cmd.Parameters.AddWithValue(":PrincipalID", principalID.ToString());
             cmd.Parameters.AddWithValue(":Friend", friend);
 
-            ExecuteNonQuery(cmd, cmd.Connection);
+            ExecuteNonQuery(cmd, m_Connection);
 
             return true;
         }
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs b/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
index cf0c28b..be699db 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
@@ -422,7 +422,7 @@ namespace OpenSim.Region.ClientStack.Linden
                                           string assetType)
         {
             m_log.DebugFormat(
-                "Uploaded asset {0} for inventory item {1}, inv type {2}, asset type {3}",
+                "[BUNCH OF CAPS]: Uploaded asset {0} for inventory item {1}, inv type {2}, asset type {3}",
                 assetID, inventoryItem, inventoryType, assetType);
 
             sbyte assType = 0;
@@ -625,7 +625,12 @@ namespace OpenSim.Region.ClientStack.Linden
             item.AssetType = assType;
             item.InvType = inType;
             item.Folder = parentFolder;
-            item.CurrentPermissions = (uint)PermissionMask.All;
+
+            // If we set PermissionMask.All then when we rez the item the next permissions will replace the current
+            // (owner) permissions.  This becomes a problem if next permissions are changed.
+            item.CurrentPermissions
+                = (uint)(PermissionMask.Move | PermissionMask.Copy | PermissionMask.Modify | PermissionMask.Transfer);
+
             item.BasePermissions = (uint)PermissionMask.All;
             item.EveryOnePermissions = 0;
             item.NextPermissions = (uint)PermissionMask.All;
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/NewFileAgentInventoryVariablePriceModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/NewFileAgentInventoryVariablePriceModule.cs
index aed03b3..1117f2a 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/NewFileAgentInventoryVariablePriceModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/NewFileAgentInventoryVariablePriceModule.cs
@@ -50,8 +50,7 @@ namespace OpenSim.Region.ClientStack.Linden
     [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule")]
     public class NewFileAgentInventoryVariablePriceModule : INonSharedRegionModule
     {
-//        private static readonly ILog m_log =
-//            LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
         
         private Scene m_scene;
 //        private IAssetService m_assetService;
@@ -210,6 +209,9 @@ namespace OpenSim.Region.ClientStack.Linden
                                           UUID inventoryItem, UUID parentFolder, byte[] data, string inventoryType,
                                           string assetType,UUID AgentID)
         {
+//            m_log.DebugFormat(
+//                "[NEW FILE AGENT INVENTORY VARIABLE PRICE MODULE]: Upload complete for {0}", inventoryItem);
+
             sbyte assType = 0;
             sbyte inType = 0;
 
@@ -259,13 +261,13 @@ namespace OpenSim.Region.ClientStack.Linden
             item.AssetType = assType;
             item.InvType = inType;
             item.Folder = parentFolder;
-            item.CurrentPermissions = (uint)PermissionMask.All;
+            item.CurrentPermissions
+                = (uint)(PermissionMask.Move | PermissionMask.Copy | PermissionMask.Modify | PermissionMask.Transfer);
             item.BasePermissions = (uint)PermissionMask.All;
             item.EveryOnePermissions = 0;
             item.NextPermissions = (uint)PermissionMask.All;
             item.CreationDate = Util.UnixTimeSinceEpoch();
             m_scene.AddInventoryItem(item);
-            
         }
     }
 }
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs
index e4bacd4..7a3d97e 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/ObjectCaps/UploadObjectAssetModule.cs
@@ -339,7 +339,7 @@ namespace OpenSim.Region.ClientStack.Linden
                     m_scene.AddSceneObject(grp);
                     grp.AbsolutePosition = obj.Position;
                 }
-
+                
                 allparts[i] = grp;
             }
 
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index f019a83..c20f7b2 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -5168,7 +5168,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             AddLocalPacketHandler(PacketType.ImprovedInstantMessage, HandlerImprovedInstantMessage, false);
             AddLocalPacketHandler(PacketType.AcceptFriendship, HandlerAcceptFriendship);
             AddLocalPacketHandler(PacketType.DeclineFriendship, HandlerDeclineFriendship);
-            AddLocalPacketHandler(PacketType.TerminateFriendship, HandlerTerminateFrendship);
+            AddLocalPacketHandler(PacketType.TerminateFriendship, HandlerTerminateFriendship);
             AddLocalPacketHandler(PacketType.RezObject, HandlerRezObject);
             AddLocalPacketHandler(PacketType.DeRezObject, HandlerDeRezObject);
             AddLocalPacketHandler(PacketType.ModifyLand, HandlerModifyLand);
@@ -5891,7 +5891,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             return true;
         }
 
-        private bool HandlerTerminateFrendship(IClientAPI sender, Packet Pack)
+        private bool HandlerTerminateFriendship(IClientAPI sender, Packet Pack)
         {
             TerminateFriendshipPacket tfriendpack = (TerminateFriendshipPacket)Pack;
 
@@ -5906,13 +5906,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             UUID listOwnerAgentID = tfriendpack.AgentData.AgentID;
             UUID exFriendID = tfriendpack.ExBlock.OtherID;
-
-            FriendshipTermination handlerTerminateFriendship = OnTerminateFriendship;
-            if (handlerTerminateFriendship != null)
+            FriendshipTermination TerminateFriendshipHandler = OnTerminateFriendship;
+            if (TerminateFriendshipHandler != null)
             {
-                handlerTerminateFriendship(this, listOwnerAgentID, exFriendID);
+                TerminateFriendshipHandler(this, listOwnerAgentID, exFriendID);
+                return true;
             }
-            return true;
+            return false;
         }
 
         private bool HandleFindAgent(IClientAPI client, Packet Packet)
diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
index fe75271..a47bc9a 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
@@ -830,6 +830,12 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                 group = objlist[i];
                 SceneObjectPart rootPart = group.RootPart;
 
+//                m_log.DebugFormat(
+//                    "[InventoryAccessModule]: Preparing to rez {0} {1} {2} ownermask={3:X} nextownermask={4:X} groupmask={5:X} everyonemask={6:X} for {7}",
+//                    group.Name, group.LocalId, group.UUID,
+//                    group.RootPart.OwnerMask, group.RootPart.NextOwnerMask, group.RootPart.GroupMask, group.RootPart.EveryoneMask,
+//                    remoteClient.Name);
+
 //                        Vector3 storedPosition = group.AbsolutePosition;
                 if (group.UUID == UUID.Zero)
                 {
@@ -892,6 +898,12 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
 
                     rootPart.ScheduleFullUpdate();
                 }
+
+//                m_log.DebugFormat(
+//                    "[InventoryAccessModule]: Rezzed {0} {1} {2} ownermask={3:X} nextownermask={4:X} groupmask={5:X} everyonemask={6:X} for {7}",
+//                    group.Name, group.LocalId, group.UUID,
+//                    group.RootPart.OwnerMask, group.RootPart.NextOwnerMask, group.RootPart.GroupMask, group.RootPart.EveryoneMask,
+//                    remoteClient.Name);
             }
 
             group.SetGroup(remoteClient.ActiveGroupId, remoteClient);
@@ -958,7 +970,10 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                 }
 
                 rootPart.FromFolderID = item.Folder;
-    
+
+//                Console.WriteLine("rootPart.OwnedID {0}, item.Owner {1}, item.CurrentPermissions {2:X}",
+//                                  rootPart.OwnerID, item.Owner, item.CurrentPermissions);
+
                 if ((rootPart.OwnerID != item.Owner) ||
                     (item.CurrentPermissions & 16) != 0 ||
                     (item.Flags & (uint)InventoryItemFlags.ObjectSlamPerm) != 0)
diff --git a/OpenSim/Region/Framework/Interfaces/INPCModule.cs b/OpenSim/Region/Framework/Interfaces/INPCModule.cs
index 2731291..dc3ff89 100644
--- a/OpenSim/Region/Framework/Interfaces/INPCModule.cs
+++ b/OpenSim/Region/Framework/Interfaces/INPCModule.cs
@@ -58,7 +58,7 @@ namespace OpenSim.Region.Framework.Interfaces
         /// </param>
         /// <param name="scene"></param>
         /// <param name="appearance">The avatar appearance to use for the new NPC.</param>
-        /// <returns>The UUID of the ScenePresence created.</returns>
+        /// <returns>The UUID of the ScenePresence created.  UUID.Zero if there was a failure.</returns>
         UUID CreateNPC(
             string firstname,
             string lastname,
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
index 01df575..fff39fb 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
@@ -330,6 +330,12 @@ namespace OpenSim.Region.Framework.Scenes
                     item.Flags = (item.Flags & ~(uint)255) | (itemUpd.Flags & (uint)255);
                     item.Name = itemUpd.Name;
                     item.Description = itemUpd.Description;
+
+//                    m_log.DebugFormat(
+//                        "[USER INVENTORY]: itemUpd {0} {1} {2} {3}, item {4} {5} {6} {7}",
+//                        itemUpd.NextPermissions, itemUpd.GroupPermissions, itemUpd.EveryOnePermissions, item.Flags,
+//                        item.NextPermissions, item.GroupPermissions, item.EveryOnePermissions, item.CurrentPermissions);
+
                     if (item.NextPermissions != (itemUpd.NextPermissions & item.BasePermissions))
                         item.Flags |= (uint)InventoryItemFlags.ObjectOverwriteNextOwner;
                     item.NextPermissions = itemUpd.NextPermissions & item.BasePermissions;
@@ -338,6 +344,9 @@ namespace OpenSim.Region.Framework.Scenes
                     item.EveryOnePermissions = itemUpd.EveryOnePermissions & item.BasePermissions;
                     if (item.GroupPermissions != (itemUpd.GroupPermissions & item.BasePermissions))
                         item.Flags |= (uint)InventoryItemFlags.ObjectOverwriteGroup;
+
+//                    m_log.DebugFormat("[USER INVENTORY]: item.Flags {0}", item.Flags);
+
                     item.GroupPermissions = itemUpd.GroupPermissions & item.BasePermissions;
                     item.GroupID = itemUpd.GroupID;
                     item.GroupOwned = itemUpd.GroupOwned;
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.Inventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.Inventory.cs
index b56d3fc..f3660a5 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.Inventory.cs
@@ -269,6 +269,8 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void ApplyNextOwnerPermissions()
         {
+//            m_log.DebugFormat("[PRIM INVENTORY]: Applying next owner permissions to {0} {1}", Name, UUID);
+
             SceneObjectPart[] parts = m_parts.GetArray();
             for (int i = 0; i < parts.Length; i++)
                 parts[i].ApplyNextOwnerPermissions();
diff --git a/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs b/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
index 03b52c0..d0b822c 100644
--- a/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
+++ b/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
@@ -44,7 +44,7 @@ namespace OpenSim.Region.OptionalModules.World.NPC
         private readonly string m_firstname;
         private readonly string m_lastname;
         private readonly Vector3 m_startPos;
-        private readonly UUID m_uuid = UUID.Random();
+        private UUID m_uuid = UUID.Random();
         private readonly Scene m_scene;
         private readonly UUID m_ownerID;
 
@@ -444,6 +444,7 @@ namespace OpenSim.Region.OptionalModules.World.NPC
         public virtual UUID AgentId
         {
             get { return m_uuid; }
+            set { m_uuid = value; }
         }
 
         public UUID SessionId
diff --git a/OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs b/OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs
index a0ae55a..6803644 100644
--- a/OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs
+++ b/OpenSim/Region/OptionalModules/World/NPC/NPCModule.cs
@@ -155,20 +155,21 @@ namespace OpenSim.Region.OptionalModules.World.NPC
                             "[NPC MODULE]: Successfully retrieved scene presence for NPC {0} {1}", sp.Name, sp.UUID);
 
                         sp.CompleteMovement(npcAvatar, false);
+                        m_avatars.Add(npcAvatar.AgentId, npcAvatar);
                     }
                     else
                     {
                         m_log.WarnFormat("[NPC MODULE]: Could not find scene presence for NPC {0} {1}", sp.Name, sp.UUID);
+                        npcAvatar.AgentId = UUID.Zero;
                     }
 
-                    m_avatars.Add(npcAvatar.AgentId, npcAvatar);
                 }
                 ev.Set();
             });
 
             ev.WaitOne();
 
-            m_log.DebugFormat("[NPC MODULE]: Created NPC with id {0}", npcAvatar.AgentId);
+//            m_log.DebugFormat("[NPC MODULE]: Created NPC with id {0}", npcAvatar.AgentId);
 
             return npcAvatar.AgentId;
         }
diff --git a/OpenSim/Tests/Torture/NPCTortureTests.cs b/OpenSim/Tests/Torture/NPCTortureTests.cs
new file mode 100644
index 0000000..8078d9d
--- /dev/null
+++ b/OpenSim/Tests/Torture/NPCTortureTests.cs
@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Reflection;
+using log4net;
+using Nini.Config;
+using NUnit.Framework;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Framework.Communications;
+using OpenSim.Region.CoreModules.Avatar.Attachments;
+using OpenSim.Region.CoreModules.Avatar.AvatarFactory;
+using OpenSim.Region.CoreModules.Framework.InventoryAccess;
+using OpenSim.Region.CoreModules.Framework.UserManagement;
+using OpenSim.Region.CoreModules.ServiceConnectorsOut.Avatar;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.OptionalModules.World.NPC;
+using OpenSim.Services.AvatarService;
+using OpenSim.Tests.Common;
+using OpenSim.Tests.Common.Mock;
+
+namespace OpenSim.Tests.Torture
+{
+    /// <summary>
+    /// NPC torture tests
+    /// </summary>
+    /// <remarks>
+    /// Don't rely on the numbers given by these tests - they will vary a lot depending on what is already cached,
+    /// how much memory is free, etc.  In some cases, later larger tests will apparently take less time than smaller
+    /// earlier tests.
+    /// </remarks>
+    [TestFixture]
+    public class NPCTortureTests
+    {
+        private TestScene scene;
+        private AvatarFactoryModule afm;
+        private UserManagementModule umm;
+        private AttachmentsModule am;
+
+        [TestFixtureSetUp]
+        public void FixtureInit()
+        {
+            // Don't allow tests to be bamboozled by asynchronous events.  Execute everything on the same thread.
+            Util.FireAndForgetMethod = FireAndForgetMethod.None;
+        }
+
+        [TestFixtureTearDown]
+        public void TearDown()
+        {
+            // We must set this back afterwards, otherwise later tests will fail since they're expecting multiple
+            // threads.  Possibly, later tests should be rewritten not to worry about such things.
+            Util.FireAndForgetMethod = Util.DefaultFireAndForgetMethod;
+        }
+
+        [SetUp]
+        public void Init()
+        {
+            IConfigSource config = new IniConfigSource();
+            config.AddConfig("NPC");
+            config.Configs["NPC"].Set("Enabled", "true");
+            config.AddConfig("Modules");
+            config.Configs["Modules"].Set("InventoryAccessModule", "BasicInventoryAccessModule");
+
+            afm = new AvatarFactoryModule();
+            umm = new UserManagementModule();
+            am = new AttachmentsModule();
+
+            scene = SceneHelpers.SetupScene();
+            SceneHelpers.SetupSceneModules(scene, config, afm, umm, am, new BasicInventoryAccessModule(), new NPCModule());
+        }
+
+        [Test]
+        public void TestAddRemove100NPCs()
+        {
+            TestHelpers.InMethod();
+//            log4net.Config.XmlConfigurator.Configure();
+
+            TestAddRemoveNPCs(100);
+        }
+
+        [Test]
+        public void TestAddRemove1000NPCs()
+        {
+            TestHelpers.InMethod();
+//            log4net.Config.XmlConfigurator.Configure();
+
+            TestAddRemoveNPCs(1000);
+        }
+
+        [Test]
+        public void TestAddRemove2000NPCs()
+        {
+            TestHelpers.InMethod();
+//            log4net.Config.XmlConfigurator.Configure();
+
+            TestAddRemoveNPCs(2000);
+        }
+
+        private void TestAddRemoveNPCs(int numberOfNpcs)
+        {
+            ScenePresence sp = SceneHelpers.AddScenePresence(scene, TestHelpers.ParseTail(0x1));
+//            ScenePresence originalAvatar = scene.GetScenePresence(originalClient.AgentId);
+
+            // 8 is the index of the first baked texture in AvatarAppearance
+            UUID originalFace8TextureId = TestHelpers.ParseTail(0x10);
+            Primitive.TextureEntry originalTe = new Primitive.TextureEntry(UUID.Zero);
+            Primitive.TextureEntryFace originalTef = originalTe.CreateFace(8);
+            originalTef.TextureID = originalFace8TextureId;
+
+            // We also need to add the texture to the asset service, otherwise the AvatarFactoryModule will tell
+            // ScenePresence.SendInitialData() to reset our entire appearance.
+            scene.AssetService.Store(AssetHelpers.CreateNotecardAsset(originalFace8TextureId));
+
+            afm.SetAppearance(sp, originalTe, null);
+
+            INPCModule npcModule = scene.RequestModuleInterface<INPCModule>();
+
+            List<UUID> npcs = new List<UUID>();
+
+            long startGcMemory = GC.GetTotalMemory(true);
+            Stopwatch sw = new Stopwatch();
+            sw.Start();
+
+            for (int i = 0; i < numberOfNpcs; i++)
+            {
+                npcs.Add(
+                    npcModule.CreateNPC("John", "Smith", new Vector3(128, 128, 30), UUID.Zero, true, scene, sp.Appearance));
+            }
+
+            for (int i = 0; i < numberOfNpcs; i++)
+            {
+                Assert.That(npcs[i], Is.Not.Null);
+
+                ScenePresence npc = scene.GetScenePresence(npcs[i]);
+                Assert.That(npc, Is.Not.Null);
+            }
+
+            for (int i = 0; i < numberOfNpcs; i++)
+            {
+                Assert.That(npcModule.DeleteNPC(npcs[i], scene), Is.True);
+                ScenePresence npc = scene.GetScenePresence(npcs[i]);
+                Assert.That(npc, Is.Null);
+            }
+
+            sw.Stop();
+
+            long endGcMemory = GC.GetTotalMemory(true);
+
+            Console.WriteLine("Took {0} ms", sw.ElapsedMilliseconds);
+            Console.WriteLine(
+                "End {0} MB, Start {1} MB, Diff {2} MB",
+                endGcMemory / 1024 / 1024,
+                startGcMemory / 1024 / 1024,
+                (endGcMemory - startGcMemory) / 1024 / 1024);
+        }
+    }
+}
\ No newline at end of file