spigot/CraftBukkit-Patches/0008-Spigot-Timings.patch

From b430f85e6dfaf831b158ca07fed67433ac8d2a1a 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/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 6b1329ad84..a7171e995e 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -187,6 +187,8 @@ import org.bukkit.craftbukkit.Main;
 import org.bukkit.event.server.ServerLoadEvent;
 // CraftBukkit end
 
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
+
 public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTask> implements ServerInfo, ICommandListener, AutoCloseable {
 
     public static final Logger LOGGER = LogUtils.getLogger();
@@ -1131,6 +1133,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
     public void onServerExit() {}
 
     public void tickServer(BooleanSupplier booleansupplier) {
+        SpigotTimings.serverTickTimer.startTiming(); // Spigot
         long i = SystemUtils.getNanos();
 
         ++this.tickCount;
@@ -1141,11 +1144,13 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
         }
 
         if (autosavePeriod > 0 && this.tickCount % autosavePeriod == 0) { // CraftBukkit
+            SpigotTimings.worldSaveTimer.startTiming(); // Spigot
             MinecraftServer.LOGGER.debug("Autosave started");
             this.profiler.push("save");
             this.saveEverything(true, false, false);
             this.profiler.pop();
             MinecraftServer.LOGGER.debug("Autosave finished");
+            SpigotTimings.worldSaveTimer.stopTiming(); // Spigot
         }
 
         this.profiler.push("tallying");
@@ -1156,6 +1161,8 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
 
         this.logTickTime(k - i);
         this.profiler.pop();
+        SpigotTimings.serverTickTimer.stopTiming(); // Spigot
+        org.spigotmc.CustomTimingsHandler.tick(); // Spigot
     }
 
     protected void logTickTime(long i) {}
@@ -1192,18 +1199,25 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
         this.getPlayerList().getPlayers().forEach((entityplayer) -> {
             entityplayer.connection.suspendFlushing();
         });
+        SpigotTimings.schedulerTimer.startTiming(); // Spigot
         this.server.getScheduler().mainThreadHeartbeat(this.tickCount); // CraftBukkit
+        SpigotTimings.schedulerTimer.stopTiming(); // Spigot
         this.profiler.push("commandFunctions");
+        SpigotTimings.commandFunctionsTimer.startTiming(); // Spigot
         this.getFunctions().tick();
+        SpigotTimings.commandFunctionsTimer.stopTiming(); // Spigot
         this.profiler.popPush("levels");
         Iterator iterator = this.getAllLevels().iterator();
 
         // CraftBukkit start
         // Run tasks that are waiting on processing
+        SpigotTimings.processQueueTimer.startTiming(); // Spigot
         while (!processQueue.isEmpty()) {
             processQueue.remove().run();
         }
+        SpigotTimings.processQueueTimer.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.tickCount % 20 == 0) {
             for (int i = 0; i < this.getPlayerList().players.size(); ++i) {
@@ -1211,6 +1225,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
                 entityplayer.connection.send(new PacketPlayOutUpdateTime(entityplayer.level().getGameTime(), entityplayer.getPlayerTime(), entityplayer.level().getGameRules().getBoolean(GameRules.RULE_DAYLIGHT))); // Add support for per player time
             }
         }
+        SpigotTimings.timeUpdateTimer.stopTiming(); // Spigot
 
         while (iterator.hasNext()) {
             WorldServer worldserver = (WorldServer) iterator.next();
@@ -1229,7 +1244,9 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
             this.profiler.push("tick");
 
             try {
+                worldserver.timings.doTick.startTiming(); // Spigot
                 worldserver.tick(booleansupplier);
+                worldserver.timings.doTick.stopTiming(); // Spigot
             } catch (Throwable throwable) {
                 CrashReport crashreport = CrashReport.forThrowable(throwable, "Exception ticking world");
 
@@ -1242,18 +1259,24 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
         }
 
         this.profiler.popPush("connection");
+        SpigotTimings.connectionTimer.startTiming(); // Spigot
         this.getConnection().tick();
+        SpigotTimings.connectionTimer.stopTiming(); // Spigot
         this.profiler.popPush("players");
+        SpigotTimings.playerListTimer.startTiming(); // Spigot
         this.playerList.tick();
+        SpigotTimings.playerListTimer.stopTiming(); // Spigot
         if (SharedConstants.IS_RUNNING_IN_IDE) {
             GameTestHarnessTicker.SINGLETON.tick();
         }
 
         this.profiler.popPush("server gui refresh");
 
+        SpigotTimings.tickablesTimer.startTiming(); // Spigot
         for (int i = 0; i < this.tickables.size(); ++i) {
             ((Runnable) this.tickables.get(i)).run();
         }
+        SpigotTimings.tickablesTimer.stopTiming(); // Spigot
 
         this.profiler.popPush("send chunks");
         iterator = this.playerList.getPlayers().iterator();
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
index 8d80161d23..76d7daee26 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
@@ -59,6 +59,7 @@ import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.io.IoBuilder;
 import org.bukkit.command.CommandSender;
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
 import org.bukkit.event.server.ServerCommandEvent;
 import org.bukkit.event.server.RemoteServerCommandEvent;
 // CraftBukkit end
@@ -390,6 +391,7 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
     }
 
     public void handleConsoleInputs() {
+        SpigotTimings.serverCommandTimer.startTiming(); // Spigot
         while (!this.consoleInput.isEmpty()) {
             ServerCommand servercommand = (ServerCommand) this.consoleInput.remove(0);
 
@@ -404,6 +406,7 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
             // CraftBukkit end
         }
 
+        SpigotTimings.serverCommandTimer.stopTiming(); // Spigot
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/server/level/ChunkProviderServer.java b/src/main/java/net/minecraft/server/level/ChunkProviderServer.java
index caab95f0fa..0e044ed950 100644
--- a/src/main/java/net/minecraft/server/level/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/level/ChunkProviderServer.java
@@ -146,11 +146,13 @@ public class ChunkProviderServer extends IChunkProvider {
             }
 
             gameprofilerfiller.incrementCounter("getChunkCacheMiss");
+            level.timings.syncChunkLoadTimer.startTiming(); // Spigot
             CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> completablefuture = this.getChunkFutureMainThread(i, j, chunkstatus, flag);
             ChunkProviderServer.b chunkproviderserver_b = this.mainThreadProcessor;
 
             Objects.requireNonNull(completablefuture);
             chunkproviderserver_b.managedBlock(completablefuture::isDone);
+            level.timings.syncChunkLoadTimer.stopTiming(); // Spigot
             ichunkaccess = (IChunkAccess) ((Either) completablefuture.join()).map((ichunkaccess1) -> {
                 return ichunkaccess1;
             }, (playerchunk_failure) -> {
@@ -376,15 +378,19 @@ public class ChunkProviderServer extends IChunkProvider {
     @Override
     public void tick(BooleanSupplier booleansupplier, boolean flag) {
         this.level.getProfiler().push("purge");
+        this.level.timings.doChunkMap.startTiming(); // Spigot
         this.distanceManager.purgeStaleTickets();
         this.runDistanceManagerUpdates();
+        this.level.timings.doChunkMap.stopTiming(); // Spigot
         this.level.getProfiler().popPush("chunks");
         if (flag) {
             this.tickChunks();
         }
 
+        this.level.timings.doChunkUnload.startTiming(); // Spigot
         this.level.getProfiler().popPush("unload");
         this.chunkMap.tick(booleansupplier);
+        this.level.timings.doChunkUnload.stopTiming(); // Spigot
         this.level.getProfiler().pop();
         this.clearCache();
     }
@@ -442,7 +448,9 @@ public class ChunkProviderServer extends IChunkProvider {
                     }
 
                     if (this.level.shouldTickBlocksAt(chunkcoordintpair.toLong())) {
+                        this.level.timings.doTickTiles.startTiming(); // Spigot
                         this.level.tickChunk(chunk1, k);
+                        this.level.timings.doTickTiles.stopTiming(); // Spigot
                     }
                 }
             }
@@ -458,7 +466,9 @@ public class ChunkProviderServer extends IChunkProvider {
             });
             gameprofilerfiller.pop();
             gameprofilerfiller.pop();
+            this.level.timings.tracker.startTiming(); // Spigot
             this.chunkMap.tick();
+            this.level.timings.tracker.stopTiming(); // Spigot
         }
     }
 
diff --git a/src/main/java/net/minecraft/server/level/WorldServer.java b/src/main/java/net/minecraft/server/level/WorldServer.java
index bce7deb65c..74782ff5af 100644
--- a/src/main/java/net/minecraft/server/level/WorldServer.java
+++ b/src/main/java/net/minecraft/server/level/WorldServer.java
@@ -171,6 +171,7 @@ import net.minecraft.world.level.storage.WorldDataServer;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.WeatherType;
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
 import org.bukkit.craftbukkit.event.CraftEventFactory;
 import org.bukkit.craftbukkit.generator.CustomWorldChunkManager;
 import org.bukkit.craftbukkit.util.CraftNamespacedKey;
@@ -373,6 +374,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
         this.updateSkyBrightness();
         this.tickTime();
         gameprofilerfiller.popPush("tickPending");
+        timings.doTickPending.startTiming(); // Spigot
         if (!this.isDebug()) {
             j = this.getGameTime();
             gameprofilerfiller.push("blockTicks");
@@ -381,13 +383,16 @@ public class WorldServer extends World implements GeneratorAccessSeed {
             this.fluidTicks.tick(j, 65536, this::tickFluid);
             gameprofilerfiller.pop();
         }
+        timings.doTickPending.stopTiming(); // Spigot
 
         gameprofilerfiller.popPush("raid");
         this.raids.tick();
         gameprofilerfiller.popPush("chunkSource");
         this.getChunkSource().tick(booleansupplier, true);
         gameprofilerfiller.popPush("blockEvents");
+        timings.doSounds.startTiming(); // Spigot
         this.runBlockEvents();
+        timings.doSounds.stopTiming(); // Spigot
         this.handlingTick = false;
         gameprofilerfiller.pop();
         boolean flag = true || !this.players.isEmpty() || !this.getForcedChunks().isEmpty(); // CraftBukkit - this prevents entity cleanup, other issues on servers with no players
@@ -398,12 +403,14 @@ public class WorldServer extends World implements GeneratorAccessSeed {
 
         if (flag || this.emptyTime++ < 300) {
             gameprofilerfiller.push("entities");
+            timings.tickEntities.startTiming(); // Spigot
             if (this.dragonFight != null) {
                 gameprofilerfiller.push("dragonFight");
                 this.dragonFight.tick();
                 gameprofilerfiller.pop();
             }
 
+            timings.entityTick.startTiming(); // Spigot
             this.entityTickList.forEach((entity) -> {
                 if (!entity.isRemoved()) {
                     if (false && this.shouldDiscardEntity(entity)) { // CraftBukkit - We prevent spawning in general, so this butchering is not needed
@@ -430,6 +437,8 @@ public class WorldServer extends World implements GeneratorAccessSeed {
                     }
                 }
             });
+            timings.entityTick.stopTiming(); // Spigot
+            timings.tickEntities.stopTiming(); // Spigot
             gameprofilerfiller.pop();
             this.tickBlockEntities();
         }
@@ -834,6 +843,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
     }
 
     public void tickNonPassenger(Entity entity) {
+        entity.tickTimer.startTiming(); // Spigot
         entity.setOldPosAndRot();
         GameProfilerFiller gameprofilerfiller = this.getProfiler();
 
@@ -852,6 +862,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
 
             this.tickPassenger(entity, entity1);
         }
+        entity.tickTimer.stopTiming(); // Spigot
 
     }
 
diff --git a/src/main/java/net/minecraft/server/network/PlayerConnection.java b/src/main/java/net/minecraft/server/network/PlayerConnection.java
index a5795700ea..c43cad1579 100644
--- a/src/main/java/net/minecraft/server/network/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/network/PlayerConnection.java
@@ -320,6 +320,7 @@ public class PlayerConnection extends ServerCommonPacketListenerImpl implements
 
     @Override
     public void tick() {
+        org.bukkit.craftbukkit.SpigotTimings.playerConnectionTimer.startTiming(); // Spigot
         if (this.ackBlockChangesUpTo > -1) {
             this.send(new ClientboundBlockChangedAckPacket(this.ackBlockChangesUpTo));
             this.ackBlockChangesUpTo = -1;
@@ -386,6 +387,7 @@ public class PlayerConnection extends ServerCommonPacketListenerImpl implements
             this.player.resetLastActionTime(); // CraftBukkit - SPIGOT-854
             this.disconnect(IChatBaseComponent.translatable("multiplayer.disconnect.idling"));
         }
+        org.bukkit.craftbukkit.SpigotTimings.playerConnectionTimer.stopTiming(); // Spigot
 
     }
 
@@ -1964,6 +1966,7 @@ public class PlayerConnection extends ServerCommonPacketListenerImpl implements
     }
 
     private void handleCommand(String s) {
+        org.bukkit.craftbukkit.SpigotTimings.playerCommandTimer.startTiming(); // Spigot
         this.LOGGER.info(this.player.getScoreboardName() + " issued server command: " + s);
 
         CraftPlayer player = this.getCraftPlayer();
@@ -1972,6 +1975,7 @@ public class PlayerConnection extends ServerCommonPacketListenerImpl implements
         this.cserver.getPluginManager().callEvent(event);
 
         if (event.isCancelled()) {
+            org.bukkit.craftbukkit.SpigotTimings.playerCommandTimer.stopTiming(); // Spigot
             return;
         }
 
@@ -1983,6 +1987,8 @@ public class PlayerConnection extends ServerCommonPacketListenerImpl implements
             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);
             return;
+        } finally {
+            org.bukkit.craftbukkit.SpigotTimings.playerCommandTimer.stopTiming(); // Spigot
         }
     }
     // CraftBukkit end
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 7f6c1c1975..b7a91c91f8 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -136,6 +136,7 @@ import org.bukkit.craftbukkit.event.CraftPortalEvent;
 import org.bukkit.entity.Hanging;
 import org.bukkit.entity.LivingEntity;
 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.vehicle.VehicleBlockCollisionEvent;
@@ -308,6 +309,7 @@ public abstract class Entity implements INamableTileEntity, EntityAccess, IComma
     public boolean lastDamageCancelled; // SPIGOT-5339, SPIGOT-6252, SPIGOT-6777: Keep track if the event was canceled
     public boolean persistentInvisibility = false;
     public BlockPosition lastLavaContact;
+    public CustomTimingsHandler tickTimer = org.bukkit.craftbukkit.SpigotTimings.getEntityTimings(this); // Spigot
 
     public float getBukkitYaw() {
         return this.yRot;
@@ -785,6 +787,7 @@ public abstract class Entity implements INamableTileEntity, EntityAccess, IComma
     }
 
     public void move(EnumMoveType enummovetype, Vec3D vec3d) {
+        org.bukkit.craftbukkit.SpigotTimings.entityMoveTimer.startTiming(); // Spigot
         if (this.noPhysics) {
             this.setPos(this.getX() + vec3d.x, this.getY() + vec3d.y, this.getZ() + vec3d.z);
         } else {
@@ -945,6 +948,7 @@ public abstract class Entity implements INamableTileEntity, EntityAccess, IComma
                 this.level().getProfiler().pop();
             }
         }
+        org.bukkit.craftbukkit.SpigotTimings.entityMoveTimer.stopTiming(); // Spigot
     }
 
     private boolean isStateClimbable(IBlockData iblockdata) {
diff --git a/src/main/java/net/minecraft/world/entity/EntityLiving.java b/src/main/java/net/minecraft/world/entity/EntityLiving.java
index d0ba845d01..6242461565 100644
--- a/src/main/java/net/minecraft/world/entity/EntityLiving.java
+++ b/src/main/java/net/minecraft/world/entity/EntityLiving.java
@@ -143,6 +143,8 @@ import org.bukkit.event.entity.EntityTeleportEvent;
 import org.bukkit.event.player.PlayerItemConsumeEvent;
 // CraftBukkit end
 
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
+
 public abstract class EntityLiving extends Entity implements Attackable {
 
     private static final Logger LOGGER = LogUtils.getLogger();
@@ -2862,6 +2864,7 @@ public abstract class EntityLiving extends Entity implements Attackable {
 
     @Override
     public void tick() {
+        SpigotTimings.timerEntityBaseTick.startTiming(); // Spigot
         super.tick();
         this.updatingUsingItem();
         this.updateSwimAmount();
@@ -2903,7 +2906,9 @@ public abstract class EntityLiving extends Entity implements Attackable {
         }
 
         if (!this.isRemoved()) {
+            SpigotTimings.timerEntityBaseTick.stopTiming(); // Spigot
             this.aiStep();
+            SpigotTimings.timerEntityTickRest.startTiming(); // Spigot
         }
 
         double d0 = this.getX() - this.xo;
@@ -2987,6 +2992,7 @@ public abstract class EntityLiving extends Entity implements Attackable {
         }
 
         this.refreshDirtyAttributes();
+        SpigotTimings.timerEntityTickRest.stopTiming(); // Spigot
     }
 
     public void detectEquipmentUpdates() {
@@ -3156,6 +3162,7 @@ public abstract class EntityLiving extends Entity implements Attackable {
 
         this.setDeltaMovement(d0, d1, d2);
         this.level().getProfiler().push("ai");
+        SpigotTimings.timerEntityAI.startTiming(); // Spigot
         if (this.isImmobile()) {
             this.jumping = false;
             this.xxa = 0.0F;
@@ -3165,6 +3172,7 @@ public abstract class EntityLiving extends Entity implements Attackable {
             this.serverAiStep();
             this.level().getProfiler().pop();
         }
+        SpigotTimings.timerEntityAI.stopTiming(); // Spigot
 
         this.level().getProfiler().pop();
         this.level().getProfiler().push("jump");
@@ -3204,6 +3212,7 @@ public abstract class EntityLiving extends Entity implements Attackable {
             this.resetFallDistance();
         }
 
+        SpigotTimings.timerEntityAIMove.startTiming(); // Spigot
         label104:
         {
             EntityLiving entityliving = this.getControllingPassenger();
@@ -3219,6 +3228,7 @@ public abstract class EntityLiving extends Entity implements Attackable {
 
             this.travel(vec3d1);
         }
+        SpigotTimings.timerEntityAIMove.stopTiming(); // Spigot
 
         this.level().getProfiler().pop();
         this.level().getProfiler().push("freezing");
@@ -3245,7 +3255,9 @@ public abstract class EntityLiving extends Entity implements Attackable {
             this.checkAutoSpinAttack(axisalignedbb, this.getBoundingBox());
         }
 
+        SpigotTimings.timerEntityAICollision.startTiming(); // Spigot
         this.pushEntities();
+        SpigotTimings.timerEntityAICollision.stopTiming(); // Spigot
         this.level().getProfiler().pop();
         if (!this.level().isClientSide && this.isSensitiveToWater() && this.isInWaterRainOrBubble()) {
             this.hurt(this.damageSources().drown(), 1.0F);
diff --git a/src/main/java/net/minecraft/world/level/SpawnerCreature.java b/src/main/java/net/minecraft/world/level/SpawnerCreature.java
index a8a2f3d293..a7526f3c0b 100644
--- a/src/main/java/net/minecraft/world/level/SpawnerCreature.java
+++ b/src/main/java/net/minecraft/world/level/SpawnerCreature.java
@@ -117,6 +117,7 @@ public final class SpawnerCreature {
 
     public static void spawnForChunk(WorldServer worldserver, Chunk chunk, SpawnerCreature.d spawnercreature_d, boolean flag, boolean flag1, boolean flag2) {
         worldserver.getProfiler().push("spawner");
+        worldserver.timings.mobSpawn.startTiming(); // Spigot
         EnumCreatureType[] aenumcreaturetype = SpawnerCreature.SPAWNING_CATEGORIES;
         int i = aenumcreaturetype.length;
 
@@ -147,6 +148,7 @@ public final class SpawnerCreature {
             }
         }
 
+        worldserver.timings.mobSpawn.stopTiming(); // Spigot
         worldserver.getProfiler().pop();
     }
 
diff --git a/src/main/java/net/minecraft/world/level/World.java b/src/main/java/net/minecraft/world/level/World.java
index 8610cb15f0..9b786aff08 100644
--- a/src/main/java/net/minecraft/world/level/World.java
+++ b/src/main/java/net/minecraft/world/level/World.java
@@ -88,6 +88,7 @@ import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.craftbukkit.CraftServer;
 import org.bukkit.craftbukkit.CraftWorld;
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
 import org.bukkit.craftbukkit.block.CapturedBlockState;
 import org.bukkit.craftbukkit.block.data.CraftBlockData;
 import org.bukkit.craftbukkit.util.CraftSpawnCategory;
@@ -155,6 +156,8 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
     public boolean populating;
     public final org.spigotmc.SpigotWorldConfig spigotConfig; // Spigot
 
+    public final SpigotTimings.WorldTimingsHandler timings; // Spigot
+
     public CraftWorld getWorld() {
         return this.world;
     }
@@ -246,6 +249,7 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
             public void onBorderSetDamageSafeZOne(WorldBorder worldborder, double d0) {}
         });
         // CraftBukkit end
+        timings = new SpigotTimings.WorldTimingsHandler(this); // Spigot - code below can generate new world and access timings
     }
 
     @Override
@@ -618,12 +622,15 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
         GameProfilerFiller gameprofilerfiller = this.getProfiler();
 
         gameprofilerfiller.push("blockEntities");
+        timings.tileEntityPending.startTiming(); // Spigot
         this.tickingBlockEntities = true;
         if (!this.pendingBlockEntityTickers.isEmpty()) {
             this.blockEntityTickers.addAll(this.pendingBlockEntityTickers);
             this.pendingBlockEntityTickers.clear();
         }
+        timings.tileEntityPending.stopTiming(); // Spigot
 
+        timings.tileEntityTick.startTiming(); // Spigot
         Iterator iterator = this.blockEntityTickers.iterator();
 
         while (iterator.hasNext()) {
@@ -636,13 +643,16 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
             }
         }
 
+        timings.tileEntityTick.stopTiming(); // Spigot
         this.tickingBlockEntities = false;
         gameprofilerfiller.pop();
     }
 
     public <T extends Entity> void guardEntityTick(Consumer<T> consumer, T t0) {
         try {
+            SpigotTimings.tickEntityTimer.startTiming(); // Spigot
             consumer.accept(t0);
+            SpigotTimings.tickEntityTimer.stopTiming(); // Spigot
         } catch (Throwable throwable) {
             CrashReport crashreport = CrashReport.forThrowable(throwable, "Ticking entity");
             CrashReportSystemDetails crashreportsystemdetails = crashreport.addCategory("Entity being ticked");
diff --git a/src/main/java/net/minecraft/world/level/block/entity/TileEntity.java b/src/main/java/net/minecraft/world/level/block/entity/TileEntity.java
index 78917dee2a..2567926c51 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/TileEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/TileEntity.java
@@ -21,8 +21,11 @@ import org.bukkit.craftbukkit.persistence.CraftPersistentDataTypeRegistry;
 import org.bukkit.inventory.InventoryHolder;
 // CraftBukkit end
 
+import org.spigotmc.CustomTimingsHandler; // Spigot
+
 public abstract class TileEntity {
 
+    public CustomTimingsHandler tickTimer = org.bukkit.craftbukkit.SpigotTimings.getTileEntityTimings(this); // Spigot
     // CraftBukkit start - data containers
     private static final CraftPersistentDataTypeRegistry DATA_TYPE_REGISTRY = new CraftPersistentDataTypeRegistry();
     public CraftPersistentDataContainer persistentDataContainer;
diff --git a/src/main/java/net/minecraft/world/level/chunk/Chunk.java b/src/main/java/net/minecraft/world/level/chunk/Chunk.java
index cb9b347b27..e36e39d993 100644
--- a/src/main/java/net/minecraft/world/level/chunk/Chunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/Chunk.java
@@ -882,6 +882,7 @@ public class Chunk extends IChunkAccess {
                         GameProfilerFiller gameprofilerfiller = Chunk.this.level.getProfiler();
 
                         gameprofilerfiller.push(this::getType);
+                        this.blockEntity.tickTimer.startTiming(); // Spigot
                         IBlockData iblockdata = Chunk.this.getBlockState(blockposition);
 
                         if (this.blockEntity.getType().isValid(iblockdata)) {
@@ -899,6 +900,10 @@ public class Chunk extends IChunkAccess {
 
                         this.blockEntity.fillCrashReportCategory(crashreportsystemdetails);
                         throw new ReportedException(crashreport);
+                        // Spigot start
+                    } finally {
+                        this.blockEntity.tickTimer.stopTiming();
+                        // Spigot end
                     }
                 }
             }
diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkRegionLoader.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkRegionLoader.java
index 570f628549..c66df1e7a9 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkRegionLoader.java
@@ -483,10 +483,13 @@ public class ChunkRegionLoader {
         NBTTagList nbttaglist1 = getListOfCompoundsOrNull(nbttagcompound, "block_entities");
 
         return nbttaglist == null && nbttaglist1 == null ? null : (chunk) -> {
+            worldserver.timings.syncChunkLoadEntitiesTimer.startTiming(); // Spigot
             if (nbttaglist != null) {
                 worldserver.addLegacyChunkEntities(EntityTypes.loadEntitiesRecursive(nbttaglist, worldserver));
             }
+            worldserver.timings.syncChunkLoadEntitiesTimer.stopTiming(); // Spigot
 
+            worldserver.timings.syncChunkLoadTileEntitiesTimer.startTiming(); // Spigot
             if (nbttaglist1 != null) {
                 for (int i = 0; i < nbttaglist1.size(); ++i) {
                     NBTTagCompound nbttagcompound1 = nbttaglist1.getCompound(i);
@@ -504,6 +507,7 @@ public class ChunkRegionLoader {
                     }
                 }
             }
+            worldserver.timings.syncChunkLoadTileEntitiesTimer.stopTiming(); // Spigot
 
         };
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index f5c3c793ea..f92424b0ff 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -2371,6 +2371,11 @@ public final class CraftServer implements Server {
     private final org.bukkit.Server.Spigot spigot = new org.bukkit.Server.Spigot()
     {
 
+        @Override
+        public YamlConfiguration getConfig()
+        {
+            return org.spigotmc.SpigotConfig.config;
+        }
     };
 
     public org.bukkit.Server.Spigot spigot()
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 0000000000..aff7b6b438
--- /dev/null
+++ b/src/main/java/org/bukkit/craftbukkit/SpigotTimings.java
@@ -0,0 +1,160 @@
+package org.bukkit.craftbukkit;
+
+import java.util.HashMap;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.level.World;
+import net.minecraft.world.level.block.entity.TileEntity;
+import net.minecraft.world.level.storage.WorldDataServer;
+import org.bukkit.craftbukkit.scheduler.CraftTask;
+import org.bukkit.plugin.java.JavaPluginLoader;
+import org.bukkit.scheduler.BukkitTask;
+import org.spigotmc.CustomTimingsHandler;
+
+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 commandFunctionsTimer = new CustomTimingsHandler("Command Functions");
+    public static final CustomTimingsHandler connectionTimer = new CustomTimingsHandler("Connection Handler");
+    public static final CustomTimingsHandler playerConnectionTimer = new CustomTimingsHandler("** PlayerConnection");
+    public static final CustomTimingsHandler tickablesTimer = new CustomTimingsHandler("Tickables");
+    public static final CustomTimingsHandler schedulerTimer = new CustomTimingsHandler("Scheduler");
+    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 {
+            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().getName();
+        CustomTimingsHandler result = entityTypeTimingMap.get(entityType);
+        if (result == null) {
+            result = new CustomTimingsHandler("** tickEntity - " + entity.getClass().getSimpleName(), 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().getName();
+        CustomTimingsHandler result = tileEntityTypeTimingMap.get(entityType);
+        if (result == null) {
+            result = new CustomTimingsHandler("** tickTileEntity - " + entity.getClass().getSimpleName(), 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 doTickPending;
+        public final CustomTimingsHandler doTickTiles;
+        public final CustomTimingsHandler doChunkMap;
+        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 syncChunkLoadStructuresTimer;
+        public final CustomTimingsHandler syncChunkLoadEntitiesTimer;
+        public final CustomTimingsHandler syncChunkLoadTileEntitiesTimer;
+        public final CustomTimingsHandler syncChunkLoadTileTicksTimer;
+        public final CustomTimingsHandler syncChunkLoadPostTimer;
+
+        public WorldTimingsHandler(World server) {
+            String name = ((WorldDataServer) server.levelData).getLevelName() + " - ";
+
+            mobSpawn = new CustomTimingsHandler("** " + name + "mobSpawn");
+            doChunkUnload = new CustomTimingsHandler("** " + name + "doChunkUnload");
+            doTickPending = new CustomTimingsHandler("** " + name + "doTickPending");
+            doTickTiles = new CustomTimingsHandler("** " + name + "doTickTiles");
+            doChunkMap = new CustomTimingsHandler("** " + name + "doChunkMap");
+            doSounds = new CustomTimingsHandler("** " + name + "doSounds");
+            entityTick = new CustomTimingsHandler("** " + name + "entityTick");
+            tileEntityTick = new CustomTimingsHandler("** " + name + "tileEntityTick");
+            tileEntityPending = new CustomTimingsHandler("** " + name + "tileEntityPending");
+
+            syncChunkLoadTimer = new CustomTimingsHandler("** " + name + "syncChunkLoad");
+            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/scheduler/CraftScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
index 1fb9b4582e..e90ec26a0c 100644
--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftScheduler.java
@@ -411,7 +411,9 @@ public class CraftScheduler implements BukkitScheduler {
             if (task.isSync()) {
                 currentTask = task;
                 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 c885bc7443..70794669ff 100644
--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftTask.java
+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftTask.java
@@ -5,7 +5,10 @@ import org.bukkit.Bukkit;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.scheduler.BukkitTask;
 
-class CraftTask implements BukkitTask, Runnable {
+import org.bukkit.craftbukkit.SpigotTimings; // Spigot
+import org.spigotmc.CustomTimingsHandler; // Spigot
+
+public class CraftTask implements BukkitTask, Runnable { // Spigot
 
     private volatile CraftTask next = null;
     public static final int ERROR = 0;
@@ -29,6 +32,7 @@ class CraftTask implements BukkitTask, Runnable {
     private final int id;
     private final long createdAt = System.nanoTime();
 
+    final CustomTimingsHandler timings; // Spigot
     CraftTask() {
         this(null, null, CraftTask.NO_REPEATING, CraftTask.NO_REPEATING);
     }
@@ -54,6 +58,7 @@ class CraftTask implements BukkitTask, Runnable {
         }
         this.id = id;
         this.period = period;
+        this.timings = this.isSync() ? SpigotTimings.getPluginTaskTimings(this, period) : null; // Spigot
     }
 
     @Override
@@ -131,4 +136,10 @@ class CraftTask implements BukkitTask, Runnable {
         setPeriod(CraftTask.CANCEL);
         return true;
     }
+
+    // Spigot start
+    public String getTaskName() {
+        return (getTaskClass() == null) ? "Unknown" : getTaskClass().getName();
+    }
+    // Spigot end
 }
-- 
2.42.0