Paper/CraftBukkit-Patches/0012-Spigot-Timings.patch

From 9c31172b45c1c00ff904edb1e55d87327c1b041f Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 10 Jan 2013 00:18:11 -0500
Subject: [PATCH] Spigot Timings

Overhauls the Timings System adding performance tracking all around the Minecraft Server

diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index bf48742..867caca 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -864,6 +864,7 @@ public class Chunk {
     }
 
     public void loadNearby(IChunkProvider ichunkprovider, IChunkProvider ichunkprovider1, int i, int j) {
+        world.timings.syncChunkLoadPostTimer.startTiming(); // Spigot
         boolean flag = ichunkprovider.isChunkLoaded(i, j - 1);
         boolean flag1 = ichunkprovider.isChunkLoaded(i + 1, j);
         boolean flag2 = ichunkprovider.isChunkLoaded(i, j + 1);
@@ -910,6 +911,7 @@ public class Chunk {
             }
         }
 
+        world.timings.syncChunkLoadPostTimer.stopTiming(); // Spigot
     }
 
     public BlockPosition h(BlockPosition blockposition) {
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index a363af7..9ee7e75 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -130,6 +130,7 @@ public class ChunkProviderServer implements IChunkProvider {
         // CraftBukkit end
 
         if (chunk == null) {
+            world.timings.syncChunkLoadTimer.startTiming(); // Spigot
             chunk = this.loadChunk(i, j);
             if (chunk == null) {
                 if (this.chunkProvider == null) {
@@ -181,6 +182,7 @@ public class ChunkProviderServer implements IChunkProvider {
             // CraftBukkit end
             
             chunk.loadNearby(this, this, i, j);
+            world.timings.syncChunkLoadTimer.stopTiming(); // Spigot
         }
 
         return chunk;
@@ -215,7 +217,9 @@ public class ChunkProviderServer implements IChunkProvider {
                 if (chunk != null) {
                     chunk.setLastSaved(this.world.getTime());
                     if (this.chunkProvider != null) {
+                        world.timings.syncChunkLoadStructuresTimer.startTiming(); // Spigot
                         this.chunkProvider.recreateStructures(chunk, i, j);
+                        world.timings.syncChunkLoadStructuresTimer.stopTiming(); // Spigot
                     }
                 }
 
diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index 33bb889..7caddb5 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -45,7 +45,9 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
 
     // CraftBukkit start - Add async variant, provide compatibility
     public Chunk a(World world, int i, int j) {
+        world.timings.syncChunkLoadDataTimer.startTiming(); // Spigot
         Object[] data = loadChunk(world, i, j);
+        world.timings.syncChunkLoadDataTimer.stopTiming(); // Spigot
         if (data != null) {
             Chunk chunk = (Chunk) data[0];
             NBTTagCompound nbttagcompound = (NBTTagCompound) data[1];
@@ -400,6 +402,7 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
 
     public void loadEntities(Chunk chunk, NBTTagCompound nbttagcompound, World world) {
         // CraftBukkit end
+        world.timings.syncChunkLoadEntitiesTimer.startTiming(); // Spigot
         NBTTagList nbttaglist1 = nbttagcompound.getList("Entities", 10);
 
         if (nbttaglist1 != null) {
@@ -425,7 +428,8 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
                 }
             }
         }
-
+        world.timings.syncChunkLoadEntitiesTimer.stopTiming(); // Spigot
+        world.timings.syncChunkLoadTileEntitiesTimer.startTiming(); // Spigot
         NBTTagList nbttaglist2 = nbttagcompound.getList("TileEntities", 10);
 
         if (nbttaglist2 != null) {
@@ -438,6 +442,8 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
                 }
             }
         }
+        world.timings.syncChunkLoadTileEntitiesTimer.stopTiming(); // Spigot
+        world.timings.syncChunkLoadTileTicksTimer.startTiming(); // Spigot
 
         if (nbttagcompound.hasKeyOfType("TileTicks", 9)) {
             NBTTagList nbttaglist3 = nbttagcompound.getList("TileTicks", 10);
@@ -457,6 +463,7 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
                 }
             }
         }
+        world.timings.syncChunkLoadTileTicksTimer.stopTiming(); // Spigot
 
         // return chunk; // CraftBukkit 
     }
diff --git a/src/main/java/net/minecraft/server/DedicatedServer.java b/src/main/java/net/minecraft/server/DedicatedServer.java
index 424b71d..390c6eb 100644
--- a/src/main/java/net/minecraft/server/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/DedicatedServer.java
@@ -18,6 +18,7 @@ import java.io.PrintStream;
 import org.apache.logging.log4j.Level;
 
 import org.bukkit.craftbukkit.LoggerOutputStream;
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
 import org.bukkit.event.server.ServerCommandEvent;
 // CraftBukkit end
 
@@ -317,6 +318,7 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
     }
 
     public void aM() {
+        SpigotTimings.serverCommandTimer.startTiming(); // Spigot
         while (!this.k.isEmpty()) {
             ServerCommand servercommand = (ServerCommand) this.k.remove(0);
 
@@ -330,6 +332,7 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
             // CraftBukkit end
         }
 
+        SpigotTimings.serverCommandTimer.stopTiming(); // Spigot
     }
 
     public boolean ad() {
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index ccf6479..c699dd1 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -16,6 +16,7 @@ import org.bukkit.entity.Hanging;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Painting;
 import org.bukkit.entity.Vehicle;
+import org.spigotmc.CustomTimingsHandler; // Spigot
 import org.bukkit.event.entity.EntityCombustByEntityEvent;
 import org.bukkit.event.hanging.HangingBreakByEntityEvent;
 import org.bukkit.event.painting.PaintingBreakByEntityEvent;
@@ -112,6 +113,8 @@ public abstract class Entity implements ICommandListener {
     public boolean valid; // CraftBukkit
     public org.bukkit.projectiles.ProjectileSource projectileSource; // CraftBukkit - For projectiles only
 
+    public CustomTimingsHandler tickTimer = org.bukkit.craftbukkit.SpigotTimings.getEntityTimings(this); // Spigot
+
     public int getId() {
         return this.id;
     }
@@ -379,6 +382,8 @@ public abstract class Entity implements ICommandListener {
     }
 
     public void move(double d0, double d1, double d2) {
+        org.bukkit.craftbukkit.SpigotTimings.entityMoveTimer.startTiming(); // Spigot
+
         if (this.T) {
             this.a(this.getBoundingBox().c(d0, d1, d2));
             this.recalcPosition();
@@ -715,6 +720,7 @@ public abstract class Entity implements ICommandListener {
 
             this.world.methodProfiler.b();
         }
+        org.bukkit.craftbukkit.SpigotTimings.entityMoveTimer.stopTiming(); // Spigot
     }
 
     private void recalcPosition() {
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 778bcd3..cd56586 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -21,6 +21,8 @@ import org.bukkit.event.entity.EntityRegainHealthEvent;
 import org.bukkit.event.vehicle.VehicleExitEvent;
 // CraftBukkit end
 
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
+
 public abstract class EntityLiving extends Entity {
 
     private static final UUID a = UUID.fromString("662A6B8D-DA3E-4C1C-8813-96EA6097278D");
@@ -1425,6 +1427,7 @@ public abstract class EntityLiving extends Entity {
     }
 
     public void s_() {
+        SpigotTimings.timerEntityBaseTick.startTiming(); // Spigot
         super.s_();
         if (!this.world.isStatic) {
             int i = this.bu();
@@ -1463,7 +1466,9 @@ public abstract class EntityLiving extends Entity {
             }
         }
 
+        SpigotTimings.timerEntityBaseTick.stopTiming(); // Spigot
         this.m();
+        SpigotTimings.timerEntityTickRest.startTiming(); // Spigot
         double d0 = this.locX - this.lastX;
         double d1 = this.locZ - this.lastZ;
         float f = (float) (d0 * d0 + d1 * d1);
@@ -1528,6 +1533,7 @@ public abstract class EntityLiving extends Entity {
 
         this.world.methodProfiler.b();
         this.aR += f2;
+        SpigotTimings.timerEntityTickRest.stopTiming(); // Spigot
     }
 
     protected float h(float f, float f1) {
@@ -1592,6 +1598,7 @@ public abstract class EntityLiving extends Entity {
         }
 
         this.world.methodProfiler.a("ai");
+        SpigotTimings.timerEntityAI.startTiming(); // Spigot
         if (this.bC()) {
             this.aW = false;
             this.aX = 0.0F;
@@ -1602,6 +1609,7 @@ public abstract class EntityLiving extends Entity {
             this.doTick();
             this.world.methodProfiler.b();
         }
+        SpigotTimings.timerEntityAI.stopTiming(); // Spigot
 
         this.world.methodProfiler.b();
         this.world.methodProfiler.a("jump");
@@ -1623,11 +1631,15 @@ public abstract class EntityLiving extends Entity {
         this.aX *= 0.98F;
         this.aY *= 0.98F;
         this.aZ *= 0.9F;
+        SpigotTimings.timerEntityAIMove.startTiming(); // Spigot
         this.g(this.aX, this.aY);
+        SpigotTimings.timerEntityAIMove.stopTiming(); // Spigot
         this.world.methodProfiler.b();
         this.world.methodProfiler.a("push");
         if (!this.world.isStatic) {
+            SpigotTimings.timerEntityAICollision.startTiming(); // Spigot
             this.bK();
+            SpigotTimings.timerEntityAICollision.stopTiming(); // Spigot
         }
 
         this.world.methodProfiler.b();
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 0a707eb..76591fb 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -45,6 +45,7 @@ import joptsimple.OptionSet;
 
 import org.bukkit.craftbukkit.Main;
 import org.bukkit.World.Environment;
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
 import org.bukkit.craftbukkit.util.Waitable;
 import org.bukkit.event.server.RemoteServerCommandEvent;
 import org.bukkit.event.world.WorldSaveEvent;
@@ -596,6 +597,7 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
     protected void x() {}
 
     protected void y() throws ExceptionWorldConflict { // CraftBukkit - added throws
+        SpigotTimings.serverTickTimer.startTiming(); // Spigot
         long i = System.nanoTime();
 
         ++this.ticks;
@@ -622,10 +624,12 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
         }
 
         if (autosavePeriod > 0 && this.ticks % autosavePeriod == 0) { // CraftBukkit
+            SpigotTimings.worldSaveTimer.startTiming(); // Spigot
             this.methodProfiler.a("save");
             this.v.savePlayers();
             this.saveChunks(true);
             this.methodProfiler.b();
+            SpigotTimings.worldSaveTimer.stopTiming(); // Spigot
         }
 
         this.methodProfiler.a("tallying");
@@ -642,6 +646,8 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
 
         this.methodProfiler.b();
         this.methodProfiler.b();
+        SpigotTimings.serverTickTimer.stopTiming(); // Spigot
+        org.spigotmc.CustomTimingsHandler.tick(); // Spigot
     }
 
     public void z() {
@@ -664,16 +670,23 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
 
         this.methodProfiler.c("levels");
 
+        SpigotTimings.schedulerTimer.startTiming(); // Spigot
         // CraftBukkit start
         this.server.getScheduler().mainThreadHeartbeat(this.ticks);
+        SpigotTimings.schedulerTimer.stopTiming(); // Spigot
 
         // Run tasks that are waiting on processing
+        SpigotTimings.processQueueTimer.startTiming(); // Spigot
         while (!processQueue.isEmpty()) {
             processQueue.remove().run();
         }
+        SpigotTimings.processQueueTimer.stopTiming(); // Spigot
 
+        SpigotTimings.chunkIOTickTimer.startTiming(); // Spigot
         org.bukkit.craftbukkit.chunkio.ChunkIOExecutor.tick();
+        SpigotTimings.chunkIOTickTimer.stopTiming(); // Spigot
 
+        SpigotTimings.timeUpdateTimer.startTiming(); // Spigot
         // Send time updates to everyone, it will get the right time from the world the player is in.
         if (this.ticks % 20 == 0) {
             for (int i = 0; i < this.getPlayerList().players.size(); ++i) {
@@ -681,6 +694,7 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
                 entityplayer.playerConnection.sendPacket(new PacketPlayOutUpdateTime(entityplayer.world.getTime(), entityplayer.getPlayerTime(), entityplayer.world.getGameRules().getBoolean("doDaylightCycle"))); // Add support for per player time
             }
         }
+        SpigotTimings.timeUpdateTimer.stopTiming(); // Spigot
 
         int i;
 
@@ -704,7 +718,9 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
                 CrashReport crashreport;
 
                 try {
+                    worldserver.timings.doTick.startTiming(); // Spigot
                     worldserver.doTick();
+                    worldserver.timings.doTick.stopTiming(); // Spigot
                 } catch (Throwable throwable1) {
                     crashreport = CrashReport.a(throwable1, "Exception ticking world");
                     worldserver.a(crashreport);
@@ -712,7 +728,9 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
                 }
 
                 try {
+                    worldserver.timings.tickEntities.startTiming(); // Spigot
                     worldserver.tickEntities();
+                    worldserver.timings.tickEntities.stopTiming(); // Spigot
                 } catch (Throwable throwable2) {
                     crashreport = CrashReport.a(throwable2, "Exception ticking world entities");
                     worldserver.a(crashreport);
@@ -721,7 +739,9 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
 
                 this.methodProfiler.b();
                 this.methodProfiler.a("tracker");
+                worldserver.timings.tracker.startTiming(); // Spigot
                 worldserver.getTracker().updatePlayers();
+                worldserver.timings.tracker.stopTiming(); // Spigot
                 this.methodProfiler.b();
                 this.methodProfiler.b();
             // } // CraftBukkit
@@ -730,14 +750,20 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
         }
 
         this.methodProfiler.c("connection");
+        SpigotTimings.connectionTimer.startTiming(); // Spigot
         this.ao().c();
+        SpigotTimings.connectionTimer.stopTiming(); // Spigot
         this.methodProfiler.c("players");
+        SpigotTimings.playerListTimer.startTiming(); // Spigot
         this.v.tick();
+        SpigotTimings.playerListTimer.stopTiming(); // Spigot
         this.methodProfiler.c("tickables");
 
+        SpigotTimings.tickablesTimer.startTiming(); // Spigot
         for (i = 0; i < this.o.size(); ++i) {
             ((IUpdatePlayerListBox) this.o.get(i)).c();
         }
+        SpigotTimings.tickablesTimer.stopTiming(); // Spigot
 
         this.methodProfiler.b();
     }
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 2d8ad1c..3727214 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -1042,6 +1042,8 @@ public class PlayerConnection implements PacketListenerPlayIn, IUpdatePlayerList
     // CraftBukkit end
 
     private void handleCommand(String s) {
+        org.bukkit.craftbukkit.SpigotTimings.playerCommandTimer.startTiming(); // Spigot
+
        // CraftBukkit start - whole method
         this.c.info(this.player.getName() + " issued server command: " + s);
 
@@ -1051,18 +1053,22 @@ public class PlayerConnection implements PacketListenerPlayIn, IUpdatePlayerList
         this.server.getPluginManager().callEvent(event);
 
         if (event.isCancelled()) {
+            org.bukkit.craftbukkit.SpigotTimings.playerCommandTimer.stopTiming(); // Spigot
             return;
         }
 
         try {
             if (this.server.dispatchCommand(event.getPlayer(), event.getMessage().substring(1))) {
+                org.bukkit.craftbukkit.SpigotTimings.playerCommandTimer.stopTiming(); // Spigot
                 return;
             }
         } catch (org.bukkit.command.CommandException ex) {
             player.sendMessage(org.bukkit.ChatColor.RED + "An internal error occurred while attempting to perform this command");
             java.util.logging.Logger.getLogger(PlayerConnection.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+            org.bukkit.craftbukkit.SpigotTimings.playerCommandTimer.stopTiming(); // Spigot
             return;
         }
+        org.bukkit.craftbukkit.SpigotTimings.playerCommandTimer.stopTiming(); // Spigot
         // this.minecraftServer.getCommandHandler().a(this.player, s);
         // CraftBukkit end
     }
diff --git a/src/main/java/net/minecraft/server/TileEntity.java b/src/main/java/net/minecraft/server/TileEntity.java
index ec76148..a93ad27 100644
--- a/src/main/java/net/minecraft/server/TileEntity.java
+++ b/src/main/java/net/minecraft/server/TileEntity.java
@@ -6,10 +6,12 @@ import java.util.concurrent.Callable;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
+import org.spigotmc.CustomTimingsHandler; // Spigot
 import org.bukkit.inventory.InventoryHolder; // CraftBukkit
 
 public abstract class TileEntity {
 
+    public CustomTimingsHandler tickTimer = org.bukkit.craftbukkit.SpigotTimings.getTileEntityTimings(this); // Spigot
     private static final Logger a = LogManager.getLogger();
     private static Map f = Maps.newHashMap();
     private static Map g = Maps.newHashMap();
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 86be044..06bd661 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -18,6 +18,7 @@ import org.bukkit.Bukkit;
 import org.bukkit.block.BlockState;
 import org.bukkit.craftbukkit.util.CraftMagicNumbers;
 import org.bukkit.craftbukkit.util.LongHashSet;
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
 import org.bukkit.generator.ChunkGenerator;
 import org.bukkit.craftbukkit.CraftServer;
 import org.bukkit.craftbukkit.CraftWorld;
@@ -125,6 +126,8 @@ public abstract class World implements IBlockAccess {
 
     public final org.spigotmc.SpigotWorldConfig spigotConfig; // Spigot
 
+    public final SpigotTimings.WorldTimingsHandler timings; // Spigot
+
     public CraftWorld getWorld() {
         return this.world;
     }
@@ -164,6 +167,7 @@ public abstract class World implements IBlockAccess {
         this.M.a(new WorldBorderListener(((WorldServer) this).getServer().getHandle())); // CraftBukkit
 
         this.getServer().addWorld(this.world); // CraftBukkit
+        timings = new SpigotTimings.WorldTimingsHandler(this); // Spigot - code below can generate new world and access timings
     }
 
     public World b() {
@@ -1254,6 +1258,7 @@ public abstract class World implements IBlockAccess {
         this.g.clear();
         this.methodProfiler.c("regular");
 
+        timings.entityTick.startTiming(); // Spigot
         // CraftBukkit start - Use field for loop variable
         for (this.tickPosition = 0; this.tickPosition < this.entityList.size(); ++this.tickPosition) {
             entity = (Entity) this.entityList.get(this.tickPosition);
@@ -1270,7 +1275,9 @@ public abstract class World implements IBlockAccess {
             this.methodProfiler.a("tick");
             if (!entity.dead) {
                 try {
+                    SpigotTimings.tickEntityTimer.startTiming(); // Spigot
                     this.g(entity);
+                    SpigotTimings.tickEntityTimer.stopTiming(); // Spigot
                 } catch (Throwable throwable1) {
                     crashreport = CrashReport.a(throwable1, "Ticking entity");
                     crashreportsystemdetails = crashreport.a("Entity being ticked");
@@ -1295,7 +1302,9 @@ public abstract class World implements IBlockAccess {
             this.methodProfiler.b();
         }
 
+        timings.entityTick.stopTiming(); // Spigot
         this.methodProfiler.c("blockEntities");
+        timings.tileEntityTick.startTiming(); // Spigot
         this.L = true;
         // CraftBukkit start - From below, clean up tile entities before ticking them
         if (!this.b.isEmpty()) {
@@ -1315,6 +1324,7 @@ public abstract class World implements IBlockAccess {
 
                 if (this.isLoaded(blockposition) && this.M.a(blockposition)) {
                     try {
+                        tileentity.tickTimer.startTiming(); // Spigot
                         ((IUpdatePlayerListBox) tileentity).c();
                     } catch (Throwable throwable2) {
                         CrashReport crashreport1 = CrashReport.a(throwable2, "Ticking block entity");
@@ -1323,6 +1333,11 @@ public abstract class World implements IBlockAccess {
                         tileentity.a(crashreportsystemdetails1);
                         throw new ReportedException(crashreport1);
                     }
+                    // Spigot start
+                    finally {
+                        tileentity.tickTimer.stopTiming();
+                    }
+                    // Spigot end
                 }
             }
 
@@ -1335,6 +1350,8 @@ public abstract class World implements IBlockAccess {
             }
         }
 
+        timings.tileEntityTick.stopTiming(); // Spigot
+        timings.tileEntityPending.startTiming(); // Spigot
         this.L = false;
         /* CraftBukkit start - Moved up
         if (!this.b.isEmpty()) {
@@ -1367,6 +1384,7 @@ public abstract class World implements IBlockAccess {
             this.a.clear();
         }
 
+        timings.tileEntityPending.stopTiming(); // Spigot
         this.methodProfiler.b();
         this.methodProfiler.b();
     }
@@ -1411,6 +1429,7 @@ public abstract class World implements IBlockAccess {
         // CraftBukkit start - Use neighbor cache instead of looking up
         Chunk startingChunk = this.getChunkIfLoaded(i >> 4, j >> 4);
         if (!flag || (startingChunk != null && startingChunk.areNeighborsLoaded(2)) /* this.isAreaLoaded(i - b0, 0, j - b0, i + b0, 0, j + b0) */) {
+            entity.tickTimer.startTiming(); // Spigot
             // CraftBukkit end
             entity.P = entity.locX;
             entity.Q = entity.locY;
@@ -1474,6 +1493,7 @@ public abstract class World implements IBlockAccess {
                 }
             }
 
+            entity.tickTimer.stopTiming(); // Spigot
         }
     }
 
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 8a09a79..1d6be5f 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -210,10 +210,13 @@ public class WorldServer extends World implements IAsyncTaskHandler {
         // CraftBukkit start - Only call spawner if we have players online and the world allows for mobs or animals
         long time = this.worldData.getTime();
         if (this.getGameRules().getBoolean("doMobSpawning") && this.worldData.getType() != WorldType.DEBUG_ALL_BLOCK_STATES && (this.allowMonsters || this.allowAnimals) && (this instanceof WorldServer && this.players.size() > 0)) {
+            timings.mobSpawn.startTiming(); // Spigot
             this.R.a(this, this.allowMonsters && (this.ticksPerMonsterSpawns != 0 && time % this.ticksPerMonsterSpawns == 0L), this.allowAnimals && (this.ticksPerAnimalSpawns != 0 && time % this.ticksPerAnimalSpawns == 0L), this.worldData.getTime() % 400L == 0L);
+            timings.mobSpawn.stopTiming(); // Spigot
             // CraftBukkit end
         }
-
+        // CraftBukkit end
+        timings.doChunkUnload.startTiming(); // Spigot
         this.methodProfiler.c("chunkSource");
         this.chunkProvider.unloadChunks();
         int j = this.a(1.0F);
@@ -227,21 +230,34 @@ public class WorldServer extends World implements IAsyncTaskHandler {
             this.worldData.setDayTime(this.worldData.getDayTime() + 1L);
         }
 
+        timings.doChunkUnload.stopTiming(); // Spigot
         this.methodProfiler.c("tickPending");
+        timings.doTickPending.startTiming(); // Spigot
         this.a(false);
+        timings.doTickPending.stopTiming(); // Spigot
         this.methodProfiler.c("tickBlocks");
+        timings.doTickTiles.startTiming(); // Spigot
         this.h();
+        timings.doTickTiles.stopTiming(); // Spigot
         this.methodProfiler.c("chunkMap");
+        timings.doChunkMap.startTiming(); // Spigot
         this.manager.flush();
+        timings.doChunkMap.stopTiming(); // Spigot
         this.methodProfiler.c("village");
+        timings.doVillages.startTiming(); // Spigot
         this.villages.tick();
         this.siegeManager.a();
+        timings.doVillages.stopTiming(); // Spigot
         this.methodProfiler.c("portalForcer");
+        timings.doPortalForcer.startTiming(); // Spigot
         this.Q.a(this.getTime());
+        timings.doPortalForcer.stopTiming(); // Spigot
         this.methodProfiler.b();
+        timings.doSounds.startTiming(); // Spigot
         this.ak();
         
         this.getWorld().processChunkGC(); // CraftBukkit
+        timings.doChunkGC.stopTiming(); // Spigot
     }
 
     public BiomeMeta a(EnumCreatureType enumcreaturetype, BlockPosition blockposition) {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 09c723f..07f15d1 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -1638,6 +1638,11 @@ public final class CraftServer implements Server {
     private final Spigot spigot = new Spigot()
     {
 
+        @Override
+        public YamlConfiguration getConfig()
+        {
+            return org.spigotmc.SpigotConfig.config;
+        }
     };
 
     public Spigot spigot()
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index faefbe7..8105872 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -255,9 +255,11 @@ public class CraftWorld implements World {
         net.minecraft.server.Chunk chunk = world.chunkProviderServer.chunks.get(LongHash.toLong(x, z));
 
         if (chunk == null) {
+            world.timings.syncChunkLoadTimer.startTiming(); // Spigot
             chunk = world.chunkProviderServer.loadChunk(x, z);
 
             chunkLoadPostProcess(chunk, x, z);
+            world.timings.syncChunkLoadTimer.stopTiming(); // Spigot
         }
         return chunk != null;
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/SpigotTimings.java b/src/main/java/org/bukkit/craftbukkit/SpigotTimings.java
new file mode 100644
index 0000000..558574f
--- /dev/null
+++ b/src/main/java/org/bukkit/craftbukkit/SpigotTimings.java
@@ -0,0 +1,170 @@
+package org.bukkit.craftbukkit;
+
+import com.google.common.collect.Maps;
+import net.minecraft.server.*;
+import org.bukkit.plugin.java.JavaPluginLoader;
+import org.spigotmc.CustomTimingsHandler;
+import org.bukkit.scheduler.BukkitTask;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.bukkit.craftbukkit.scheduler.CraftTask;
+
+public class SpigotTimings {
+
+    public static final CustomTimingsHandler serverTickTimer = new CustomTimingsHandler("** Full Server Tick");
+    public static final CustomTimingsHandler playerListTimer = new CustomTimingsHandler("Player List");
+    public static final CustomTimingsHandler connectionTimer = new CustomTimingsHandler("Connection Handler");
+    public static final CustomTimingsHandler tickablesTimer = new CustomTimingsHandler("Tickables");
+    public static final CustomTimingsHandler schedulerTimer = new CustomTimingsHandler("Scheduler");
+    public static final CustomTimingsHandler chunkIOTickTimer = new CustomTimingsHandler("ChunkIOTick");
+    public static final CustomTimingsHandler timeUpdateTimer = new CustomTimingsHandler("Time Update");
+    public static final CustomTimingsHandler serverCommandTimer = new CustomTimingsHandler("Server Command");
+    public static final CustomTimingsHandler worldSaveTimer = new CustomTimingsHandler("World Save");
+
+    public static final CustomTimingsHandler entityMoveTimer = new CustomTimingsHandler("** entityMove");
+    public static final CustomTimingsHandler tickEntityTimer = new CustomTimingsHandler("** tickEntity");
+    public static final CustomTimingsHandler activatedEntityTimer = new CustomTimingsHandler("** activatedTickEntity");
+    public static final CustomTimingsHandler tickTileEntityTimer = new CustomTimingsHandler("** tickTileEntity");
+
+    public static final CustomTimingsHandler timerEntityBaseTick = new CustomTimingsHandler("** livingEntityBaseTick");
+    public static final CustomTimingsHandler timerEntityAI = new CustomTimingsHandler("** livingEntityAI");
+    public static final CustomTimingsHandler timerEntityAICollision = new CustomTimingsHandler("** livingEntityAICollision");
+    public static final CustomTimingsHandler timerEntityAIMove = new CustomTimingsHandler("** livingEntityAIMove");
+    public static final CustomTimingsHandler timerEntityTickRest = new CustomTimingsHandler("** livingEntityTickRest");
+
+    public static final CustomTimingsHandler processQueueTimer = new CustomTimingsHandler("processQueue");
+    public static final CustomTimingsHandler schedulerSyncTimer = new CustomTimingsHandler("** Scheduler - Sync Tasks", JavaPluginLoader.pluginParentTimer);
+
+    public static final CustomTimingsHandler playerCommandTimer = new CustomTimingsHandler("** playerCommand");
+
+    public static final HashMap<String, CustomTimingsHandler> entityTypeTimingMap = new HashMap<String, CustomTimingsHandler>();
+    public static final HashMap<String, CustomTimingsHandler> tileEntityTypeTimingMap = new HashMap<String, CustomTimingsHandler>();
+    public static final HashMap<String, CustomTimingsHandler> pluginTaskTimingMap = new HashMap<String, CustomTimingsHandler>();
+
+    /**
+     * Gets a timer associated with a plugins tasks.
+     * @param task
+     * @param period
+     * @return
+     */
+    public static CustomTimingsHandler getPluginTaskTimings(BukkitTask task, long period) {
+        if (!task.isSync()) {
+            return null;
+        }
+        String plugin;
+        final CraftTask ctask = (CraftTask) task;
+
+        if (task.getOwner() != null) {
+            plugin = task.getOwner().getDescription().getFullName();
+        } else if (ctask.timingName != null) {
+            plugin = "CraftScheduler";
+        } else {
+            plugin = "Unknown";
+        }
+        String taskname = ctask.getTaskName();
+
+        String name = "Task: " + plugin + " Runnable: " + taskname;
+        if (period > 0) {
+            name += "(interval:" + period +")";
+        } else {
+            name += "(Single)";
+        }
+        CustomTimingsHandler result = pluginTaskTimingMap.get(name);
+        if (result == null) {
+            result = new CustomTimingsHandler(name, SpigotTimings.schedulerSyncTimer);
+            pluginTaskTimingMap.put(name, result);
+        }
+        return result;
+    }
+
+    /**
+     * Get a named timer for the specified entity type to track type specific timings.
+     * @param entity
+     * @return
+     */
+    public static CustomTimingsHandler getEntityTimings(Entity entity) {
+        String entityType = entity.getClass().getSimpleName();
+        CustomTimingsHandler result = entityTypeTimingMap.get(entityType);
+        if (result == null) {
+            result = new CustomTimingsHandler("** tickEntity - " + entityType, activatedEntityTimer);
+            entityTypeTimingMap.put(entityType, result);
+        }
+        return result;
+    }
+
+    /**
+     * Get a named timer for the specified tile entity type to track type specific timings.
+     * @param entity
+     * @return
+     */
+    public static CustomTimingsHandler getTileEntityTimings(TileEntity entity) {
+        String entityType = entity.getClass().getSimpleName();
+        CustomTimingsHandler result = tileEntityTypeTimingMap.get(entityType);
+        if (result == null) {
+            result = new CustomTimingsHandler("** tickTileEntity - " + entityType, tickTileEntityTimer);
+            tileEntityTypeTimingMap.put(entityType, result);
+        }
+        return result;
+    }
+
+    /**
+     * Set of timers per world, to track world specific timings.
+     */
+    public static class WorldTimingsHandler {
+        public final CustomTimingsHandler mobSpawn;
+        public final CustomTimingsHandler doChunkUnload;
+        public final CustomTimingsHandler doPortalForcer;
+        public final CustomTimingsHandler doTickPending;
+        public final CustomTimingsHandler doTickTiles;
+        public final CustomTimingsHandler doVillages;
+        public final CustomTimingsHandler doChunkMap;
+        public final CustomTimingsHandler doChunkGC;
+        public final CustomTimingsHandler doSounds;
+        public final CustomTimingsHandler entityTick;
+        public final CustomTimingsHandler tileEntityTick;
+        public final CustomTimingsHandler tileEntityPending;
+        public final CustomTimingsHandler tracker;
+        public final CustomTimingsHandler doTick;
+        public final CustomTimingsHandler tickEntities;
+
+        public final CustomTimingsHandler syncChunkLoadTimer;
+        public final CustomTimingsHandler syncChunkLoadDataTimer;
+        public final CustomTimingsHandler syncChunkLoadStructuresTimer;
+        public final CustomTimingsHandler syncChunkLoadEntitiesTimer;
+        public final CustomTimingsHandler syncChunkLoadTileEntitiesTimer;
+        public final CustomTimingsHandler syncChunkLoadTileTicksTimer;
+        public final CustomTimingsHandler syncChunkLoadPostTimer;
+
+        public WorldTimingsHandler(World server) {
+            String name = server.worldData.getName() +" - ";
+
+            mobSpawn = new CustomTimingsHandler("** " + name + "mobSpawn");
+            doChunkUnload = new CustomTimingsHandler("** " + name + "doChunkUnload");
+            doTickPending = new CustomTimingsHandler("** " + name + "doTickPending");
+            doTickTiles = new CustomTimingsHandler("** " + name + "doTickTiles");
+            doVillages = new CustomTimingsHandler("** " + name + "doVillages");
+            doChunkMap = new CustomTimingsHandler("** " + name + "doChunkMap");
+            doSounds = new CustomTimingsHandler("** " + name + "doSounds");
+            doChunkGC = new CustomTimingsHandler("** " + name + "doChunkGC");
+            doPortalForcer = new CustomTimingsHandler("** " + name + "doPortalForcer");
+            entityTick = new CustomTimingsHandler("** " + name + "entityTick");
+            tileEntityTick = new CustomTimingsHandler("** " + name + "tileEntityTick");
+            tileEntityPending = new CustomTimingsHandler("** " + name + "tileEntityPending");
+
+            syncChunkLoadTimer = new CustomTimingsHandler("** " + name + "syncChunkLoad");
+            syncChunkLoadDataTimer = new CustomTimingsHandler("** " + name + "syncChunkLoad - Data");
+            syncChunkLoadStructuresTimer = new CustomTimingsHandler("** " + name + "chunkLoad - Structures");
+            syncChunkLoadEntitiesTimer = new CustomTimingsHandler("** " + name + "chunkLoad - Entities");
+            syncChunkLoadTileEntitiesTimer = new CustomTimingsHandler("** " + name + "chunkLoad - TileEntities");
+            syncChunkLoadTileTicksTimer = new CustomTimingsHandler("** " + name + "chunkLoad - TileTicks");
+            syncChunkLoadPostTimer = new CustomTimingsHandler("** " + name + "chunkLoad - Post");
+
+
+            tracker = new CustomTimingsHandler(name + "tracker");
+            doTick = new CustomTimingsHandler(name + "doTick");
+            tickEntities = new CustomTimingsHandler(name + "tickEntities");
+        }
+    }
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java
index 26ea0d3..7fabfa3 100644
--- a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java
+++ b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOProvider.java
@@ -40,7 +40,9 @@ class ChunkIOProvider implements AsynchronousExecutor.CallBackProvider<QueuedChu
         chunk.addEntities();
 
         if (queuedChunk.provider.chunkProvider != null) {
+            queuedChunk.provider.world.timings.syncChunkLoadStructuresTimer.startTiming(); // Spigot
             queuedChunk.provider.chunkProvider.recreateStructures(chunk, queuedChunk.x, queuedChunk.z);
+            queuedChunk.provider.world.timings.syncChunkLoadStructuresTimer.stopTiming(); // Spigot
         }
 
         Server server = queuedChunk.provider.world.getServer();
diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
index 9fea4fb..8442ecb 100644
--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
@@ -346,7 +346,9 @@ public class CraftScheduler implements BukkitScheduler {
             }
             if (task.isSync()) {
                 try {
+                    task.timings.startTiming(); // Spigot
                     task.run();
+                    task.timings.stopTiming(); // Spigot
                 } catch (final Throwable throwable) {
                     task.getOwner().getLogger().log(
                             Level.WARNING,
diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftTask.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftTask.java
index 55db3ff..220e39a 100644
--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftTask.java
+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftTask.java
@@ -1,11 +1,13 @@
 package org.bukkit.craftbukkit.scheduler;
 
 import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
+import org.spigotmc.CustomTimingsHandler; // Spigot
 import org.bukkit.plugin.Plugin;
 import org.bukkit.scheduler.BukkitTask;
 
 
-class CraftTask implements BukkitTask, Runnable {
+public class CraftTask implements BukkitTask, Runnable { // Spigot
 
     private volatile CraftTask next = null;
     /**
@@ -22,6 +24,7 @@ class CraftTask implements BukkitTask, Runnable {
     private final Plugin plugin;
     private final int id;
 
+    final CustomTimingsHandler timings; // Spigot
     CraftTask() {
         this(null, null, -1, -1);
     }
@@ -30,11 +33,26 @@ class CraftTask implements BukkitTask, Runnable {
         this(null, task, -1, -1);
     }
 
-    CraftTask(final Plugin plugin, final Runnable task, final int id, final long period) {
+    // Spigot start
+    public String timingName = null;
+    CraftTask(String timingName) {
+        this(timingName, null, null, -1, -1);
+    }
+    CraftTask(String timingName, final Runnable task) {
+        this(timingName, null, task, -1, -1);
+    }
+    CraftTask(String timingName, final Plugin plugin, final Runnable task, final int id, final long period) {
         this.plugin = plugin;
         this.task = task;
         this.id = id;
         this.period = period;
+        this.timingName = timingName == null && task == null ? "Unknown" : timingName;
+        timings = this.isSync() ? SpigotTimings.getPluginTaskTimings(this, period) : null;
+    }
+
+    CraftTask(final Plugin plugin, final Runnable task, final int id, final long period) {
+        this(null, plugin, task, id, period);
+    // Spigot end
     }
 
     public final int getTaskId() {
@@ -94,4 +112,13 @@ class CraftTask implements BukkitTask, Runnable {
         setPeriod(-2l);
         return true;
     }
+
+    // Spigot start
+    public String getTaskName() {
+        if (timingName != null) {
+            return timingName;
+        }
+        return task.getClass().getName();
+    }
+    // Spigot end
 }
-- 
2.1.0