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PaperMC/patches/server-remapped/0486-Implement-Chunk-Priority-Urgency-System-for-Chunks.patch
Mariell Hoversholm a207d14a0e
Rename all patches to correct numbering scheme 
Signed-off-by: Mariell Hoversholm <proximyst@proximyst.com>
2021-06-11 15:46:44 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 11 Apr 2020 03:56:07 -0400
Subject: [PATCH] Implement Chunk Priority / Urgency System for Chunks
Mark chunks that are blocking main thread for world generation as urgent
Implements a general priority system so that chunks that are sorted in
the generator queues can prioritize certain chunks over another.
Urgent chunks will jump to the front of the line, ensuring that a
sync chunk load on an ungenerated chunk does not lag the server for
a long period of time if the servers generator queues are filled with
lots of chunks already.
This massively reduces the lag spikes from sync chunk gens.
Then we further prioritize loading order so nearby chunks have higher
priority than distant chunks, reducing the pressure a high no tick
view distance holds on you.
Chunks in front of the player have higher priority, to help with
fast traveling players keep up with their movement.
diff --git a/src/main/java/com/destroystokyo/paper/io/chunk/ChunkTaskManager.java b/src/main/java/com/destroystokyo/paper/io/chunk/ChunkTaskManager.java
index 499aff1f1e1ffc01ba8f9de43ca17899525a306f..97b85587525ddb62af9bfc8785b48727a6135599 100644
--- a/src/main/java/com/destroystokyo/paper/io/chunk/ChunkTaskManager.java
+++ b/src/main/java/com/destroystokyo/paper/io/chunk/ChunkTaskManager.java
@@ -108,7 +108,7 @@ public final class ChunkTaskManager {
}
static void dumpChunkInfo(Set<ChunkHolder> seenChunks, ChunkHolder chunkHolder, int x, int z) {
- dumpChunkInfo(seenChunks, chunkHolder, x, z, 0, 1);
+ dumpChunkInfo(seenChunks, chunkHolder, x, z, 0, 4);
}
static void dumpChunkInfo(Set<ChunkHolder> seenChunks, ChunkHolder chunkHolder, int x, int z, int indent, int maxDepth) {
@@ -129,6 +129,30 @@ public final class ChunkTaskManager {
PaperFileIOThread.LOGGER.log(Level.ERROR, indentStr + "Chunk Status - " + ((chunk == null) ? "null chunk" : chunk.getStatus().toString()));
PaperFileIOThread.LOGGER.log(Level.ERROR, indentStr + "Chunk Ticket Status - " + ChunkHolder.getStatus(chunkHolder.getTicketLevel()));
PaperFileIOThread.LOGGER.log(Level.ERROR, indentStr + "Chunk Holder Status - " + ((holderStatus == null) ? "null" : holderStatus.toString()));
+ PaperFileIOThread.LOGGER.log(Level.ERROR, indentStr + "Chunk Holder Priority - " + chunkHolder.getCurrentPriority());
+
+ if (!chunkHolder.neighbors.isEmpty()) {
+ if (indent >= maxDepth) {
+ PaperFileIOThread.LOGGER.log(Level.ERROR, indentStr + "Chunk Neighbors: (Can't show, too deeply nested)");
+ return;
+ }
+ PaperFileIOThread.LOGGER.log(Level.ERROR, indentStr + "Chunk Neighbors: ");
+ for (ChunkHolder neighbor : chunkHolder.neighbors.keySet()) {
+ ChunkStatus status = neighbor.getChunkHolderStatus();
+ if (status != null && status.isAtLeastStatus(ChunkHolder.getStatus(neighbor.getTicketLevel()))) {
+ continue;
+ }
+ int nx = neighbor.pos.x;
+ int nz = neighbor.pos.z;
+ if (seenChunks.contains(neighbor)) {
+ PaperFileIOThread.LOGGER.log(Level.ERROR, indentStr + " " + nx + "," + nz + " in " + chunkHolder.getWorld().getWorld().getName() + " (CIRCULAR)");
+ continue;
+ }
+ PaperFileIOThread.LOGGER.log(Level.ERROR, indentStr + " " + nx + "," + nz + " in " + chunkHolder.getWorld().getWorld().getName() + ":");
+ dumpChunkInfo(seenChunks, neighbor, nx, nz, indent + 1, maxDepth);
+ }
+ }
+
}
}
diff --git a/src/main/java/net/minecraft/server/MCUtil.java b/src/main/java/net/minecraft/server/MCUtil.java
index d18497a33dc53f6b465e659967bf8c98731c46c0..9a5737caf250dd2cc7f244248226f69117b27bad 100644
--- a/src/main/java/net/minecraft/server/MCUtil.java
+++ b/src/main/java/net/minecraft/server/MCUtil.java
@@ -631,10 +631,10 @@ public final class MCUtil {
// sorting by coordinate makes the log easier to read
allChunks.sort((ChunkHolder v1, ChunkHolder v2) -> {
- if (v1.location.x != v2.location.x) {
- return Integer.compare(v1.location.x, v2.location.x);
+ if (v1.pos.x != v2.pos.x) {
+ return Integer.compare(v1.pos.x, v2.pos.x);
}
- return Integer.compare(v1.location.z, v2.location.z);
+ return Integer.compare(v1.pos.z, v2.pos.z);
});
worldData.addProperty("name", world.getWorld().getName());
@@ -667,14 +667,15 @@ public final class MCUtil {
for (ChunkHolder playerChunk : allChunks) {
JsonObject chunkData = new JsonObject();
- Set<Ticket<?>> tickets = chunkMapDistance.tickets.get(playerChunk.pos.pair());
+ Set<Ticket<?>> tickets = chunkMapDistance.tickets.get(playerChunk.pos.toLong());
ChunkStatus status = getChunkStatus(playerChunk);
- chunkData.addProperty("x", playerChunk.location.x);
- chunkData.addProperty("z", playerChunk.location.z);
+ chunkData.addProperty("x", playerChunk.pos.x);
+ chunkData.addProperty("z", playerChunk.pos.z);
chunkData.addProperty("ticket-level", playerChunk.getTicketLevel());
+ chunkData.addProperty("priority", playerChunk.getCurrentPriority());
chunkData.addProperty("state", ChunkHolder.getFullChunkStatus(playerChunk.getTicketLevel()).toString());
- chunkData.addProperty("queued-for-unload", chunkMap.toDrop.contains(playerChunk.pos.pair()));
+ chunkData.addProperty("queued-for-unload", chunkMap.toDrop.contains(playerChunk.pos.toLong()));
chunkData.addProperty("status", status == null ? "unloaded" : status.toString());
JsonArray ticketsData = new JsonArray();
diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java
index d907872d80f840b343419f49a6708082da6f921b..ce320672d7602c94dd75ad857435dca6ac3bab56 100644
--- a/src/main/java/net/minecraft/server/level/ChunkHolder.java
+++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java
@@ -1,6 +1,7 @@
package net.minecraft.server.level;
import com.mojang.datafixers.util.Either;
+import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap; // Paper
import it.unimi.dsi.fastutil.shorts.ShortArraySet;
import it.unimi.dsi.fastutil.shorts.ShortSet;
import java.util.List;
@@ -19,6 +20,7 @@ import net.minecraft.network.protocol.game.ClientboundBlockEntityDataPacket;
import net.minecraft.network.protocol.game.ClientboundBlockUpdatePacket;
import net.minecraft.network.protocol.game.ClientboundLightUpdatePacket;
import net.minecraft.network.protocol.game.ClientboundSectionBlocksUpdatePacket;
+import net.minecraft.server.MCUtil;
import net.minecraft.world.level.ChunkPos;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.LightLayer;
@@ -52,8 +54,8 @@ public class ChunkHolder {
private CompletableFuture<ChunkAccess> chunkToSave;
public int oldTicketLevel;
private int ticketLevel;
- private int queueLevel;
- final ChunkPos pos; // Paper - private -> package
+ volatile int queueLevel; public final int getCurrentPriority() { return queueLevel; } // Paper - OBFHELPER - make volatile since this is concurrently accessed
+ public final ChunkPos pos; // Paper - private -> public
private boolean hasChangedSections;
private final ShortSet[] changedBlocksPerSection;
private int blockChangedLightSectionFilter;
@@ -65,6 +67,7 @@ public class ChunkHolder {
private boolean resendLight;
private final ChunkMap chunkMap; // Paper
+ public ServerLevel getWorld() { return chunkMap.level; } // Paper
long lastAutoSaveTime; // Paper - incremental autosave
long inactiveTimeStart; // Paper - incremental autosave
@@ -92,6 +95,120 @@ public class ChunkHolder {
return null;
}
// Paper end - no-tick view distance
+ // Paper start - Chunk gen/load priority system
+ volatile int neighborPriority = -1;
+ volatile int priorityBoost = 0;
+ public final java.util.concurrent.ConcurrentHashMap<ChunkHolder, ChunkStatus> neighbors = new java.util.concurrent.ConcurrentHashMap<>();
+ public final Long2ObjectOpenHashMap<Integer> neighborPriorities = new Long2ObjectOpenHashMap<>();
+
+ private int getDemandedPriority() {
+ int priority = neighborPriority; // if we have a neighbor priority, use it
+ int myPriority = getMyPriority();
+
+ if (priority == -1 || (ticketLevel <= 33 && priority > myPriority)) {
+ priority = myPriority;
+ }
+
+ return Math.max(1, Math.min(Math.max(ticketLevel, ChunkMap.MAX_CHUNK_DISTANCE), priority));
+ }
+
+ private int getMyPriority() {
+ if (priorityBoost == DistanceManager.URGENT_PRIORITY) {
+ return 2; // Urgent - ticket level isn't always 31 so 33-30 = 3, but allow 1 more tasks to go below this for dependents
+ }
+ return ticketLevel - priorityBoost;
+ }
+
+ private int getNeighborsPriority() {
+ return (neighborPriorities.isEmpty() ? getMyPriority() : getDemandedPriority()) + 1;
+ }
+
+ public void onNeighborRequest(ChunkHolder neighbor, ChunkStatus status) {
+ neighbor.setNeighborPriority(this, getNeighborsPriority());
+ this.neighbors.compute(neighbor, (playerChunk, currentWantedStatus) -> {
+ if (currentWantedStatus == null || !currentWantedStatus.isAtLeastStatus(status)) {
+ //System.out.println(this + " request " + neighbor + " at " + status + " currently " + currentWantedStatus);
+ return status;
+ } else {
+ //System.out.println(this + " requested " + neighbor + " at " + status + " but thats lower than other wanted status " + currentWantedStatus);
+ return currentWantedStatus;
+ }
+ });
+
+ }
+
+ public void onNeighborDone(ChunkHolder neighbor, ChunkStatus chunkstatus, ChunkAccess chunk) {
+ this.neighbors.compute(neighbor, (playerChunk, wantedStatus) -> {
+ if (wantedStatus != null && chunkstatus.isAtLeastStatus(wantedStatus)) {
+ //System.out.println(this + " neighbor done at " + neighbor + " for status " + chunkstatus + " wanted " + wantedStatus);
+ neighbor.removeNeighborPriority(this);
+ return null;
+ } else {
+ //System.out.println(this + " neighbor finished our previous request at " + neighbor + " for status " + chunkstatus + " but we now want instead " + wantedStatus);
+ return wantedStatus;
+ }
+ });
+ }
+
+ private void removeNeighborPriority(ChunkHolder requester) {
+ synchronized (neighborPriorities) {
+ neighborPriorities.remove(requester.pos.toLong());
+ recalcNeighborPriority();
+ }
+ checkPriority();
+ }
+
+
+ private void setNeighborPriority(ChunkHolder requester, int priority) {
+ synchronized (neighborPriorities) {
+ neighborPriorities.put(requester.pos.toLong(), Integer.valueOf(priority));
+ recalcNeighborPriority();
+ }
+ checkPriority();
+ }
+
+ private void recalcNeighborPriority() {
+ neighborPriority = -1;
+ if (!neighborPriorities.isEmpty()) {
+ synchronized (neighborPriorities) {
+ for (Integer neighbor : neighborPriorities.values()) {
+ if (neighbor < neighborPriority || neighborPriority == -1) {
+ neighborPriority = neighbor;
+ }
+ }
+ }
+ }
+ }
+ private void checkPriority() {
+ if (getCurrentPriority() != getDemandedPriority()) this.chunkMap.queueHolderUpdate(this);
+ }
+
+ public final double getDistance(ServerPlayer player) {
+ return getDistance(player.getX(), player.getZ());
+ }
+ public final double getDistance(double blockX, double blockZ) {
+ int cx = MCUtil.fastFloor(blockX) >> 4;
+ int cz = MCUtil.fastFloor(blockZ) >> 4;
+ final double x = pos.x - cx;
+ final double z = pos.z - cz;
+ return (x * x) + (z * z);
+ }
+
+ public final double getDistanceFrom(BlockPos pos) {
+ return getDistance(pos.getX(), pos.getZ());
+ }
+
+ @Override
+ public String toString() {
+ return "PlayerChunk{" +
+ "location=" + pos +
+ ", ticketLevel=" + ticketLevel + "/" + getStatus(this.ticketLevel) +
+ ", chunkHolderStatus=" + getChunkHolderStatus() +
+ ", neighborPriority=" + getNeighborsPriority() +
+ ", priority=(" + ticketLevel + " - " + priorityBoost +" vs N " + neighborPriority + ") = " + getDemandedPriority() + " A " + getCurrentPriority() +
+ '}';
+ }
+ // Paper end
public ChunkHolder(ChunkPos pos, int level, LevelLightEngine lightingProvider, ChunkHolder.LevelChangeListener levelUpdateListener, ChunkHolder.PlayerProvider playersWatchingChunkProvider) {
this.futures = new AtomicReferenceArray(ChunkHolder.CHUNK_STATUSES.size());
@@ -194,6 +311,18 @@ public class ChunkHolder {
}
return null;
}
+ public static ChunkStatus getNextStatus(ChunkStatus status) {
+ if (status == ChunkStatus.FULL) {
+ return status;
+ }
+ return CHUNK_STATUSES.get(status.getStatusIndex() + 1);
+ }
+ public CompletableFuture<Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>> getStatusFutureUncheckedMain(ChunkStatus chunkstatus) {
+ return ensureMain(getFutureIfPresentUnchecked(chunkstatus));
+ }
+ public <T> CompletableFuture<T> ensureMain(CompletableFuture<T> future) {
+ return future.thenApplyAsync(r -> r, chunkMap.mainInvokingExecutor);
+ }
// Paper end
public CompletableFuture<Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>> getFutureIfPresentUnchecked(ChunkStatus leastStatus) {
@@ -440,6 +569,7 @@ public class ChunkHolder {
return this.queueLevel;
}
+ private void setPriority(int i) { setQueueLevel(i); } // Paper - OBFHELPER
private void setQueueLevel(int level) {
this.queueLevel = level;
}
@@ -458,7 +588,7 @@ public class ChunkHolder {
// CraftBukkit start
// ChunkUnloadEvent: Called before the chunk is unloaded: isChunkLoaded is still true and chunk can still be modified by plugins.
if (playerchunk_state.isOrAfter(ChunkHolder.FullChunkStatus.BORDER) && !playerchunk_state1.isOrAfter(ChunkHolder.FullChunkStatus.BORDER)) {
- this.getFutureIfPresentUnchecked(ChunkStatus.FULL).thenAccept((either) -> {
+ this.getStatusFutureUncheckedMain(ChunkStatus.FULL).thenAccept((either) -> { // Paper - ensure main
LevelChunk chunk = (LevelChunk)either.left().orElse(null);
if (chunk != null) {
chunkStorage.callbackExecutor.execute(() -> {
@@ -523,12 +653,13 @@ public class ChunkHolder {
if (!flag2 && flag3) {
// Paper start - cache ticking ready status
int expectCreateCount = ++this.fullChunkCreateCount;
- this.fullChunkFuture = chunkStorage.unpackTicks(this); this.fullChunkFuture.thenAccept((either) -> {
+ this.fullChunkFuture = chunkStorage.unpackTicks(this); ensureMain(this.fullChunkFuture).thenAccept((either) -> { // Paper - ensure main
if (either.left().isPresent() && ChunkHolder.this.fullChunkCreateCount == expectCreateCount) {
// note: Here is a very good place to add callbacks to logic waiting on this.
LevelChunk fullChunk = either.left().get();
ChunkHolder.this.isFullChunkReady = true;
fullChunk.playerChunk = ChunkHolder.this;
+ this.chunkMap.distanceManager.clearPriorityTickets(pos);
}
@@ -553,7 +684,7 @@ public class ChunkHolder {
if (!flag4 && flag5) {
// Paper start - cache ticking ready status
- this.tickingChunkFuture = chunkStorage.postProcess(this); this.tickingChunkFuture.thenAccept((either) -> {
+ this.tickingChunkFuture = chunkStorage.postProcess(this); ensureMain(this.tickingChunkFuture).thenAccept((either) -> { // Paper - ensure main
if (either.left().isPresent()) {
// note: Here is a very good place to add callbacks to logic waiting on this.
LevelChunk tickingChunk = either.left().get();
@@ -584,7 +715,7 @@ public class ChunkHolder {
}
// Paper start - cache ticking ready status
- this.entityTickingChunkFuture = chunkStorage.getEntityTickingRangeFuture(this.pos); this.entityTickingChunkFuture.thenAccept((either) -> {
+ this.entityTickingChunkFuture = chunkStorage.getEntityTickingRangeFuture(this.pos); ensureMain(this.entityTickingChunkFuture).thenAccept((either) -> { // Paper ensureMain
if (either.left().isPresent()) {
// note: Here is a very good place to add callbacks to logic waiting on this.
LevelChunk entityTickingChunk = either.left().get();
@@ -604,12 +735,29 @@ public class ChunkHolder {
this.entityTickingChunkFuture = ChunkHolder.UNLOADED_LEVEL_CHUNK_FUTURE;
}
- this.onLevelChange.onLevelChange(this.pos, this::getQueueLevel, this.ticketLevel, this::setQueueLevel);
+ // Paper start - raise IO/load priority if priority changes, use our preferred priority
+ priorityBoost = chunkMap.distanceManager.getChunkPriority(pos);
+ int priority = getDemandedPriority();
+ if (getCurrentPriority() > priority) {
+ int ioPriority = com.destroystokyo.paper.io.PrioritizedTaskQueue.NORMAL_PRIORITY;
+ if (priority <= 10) {
+ ioPriority = com.destroystokyo.paper.io.PrioritizedTaskQueue.HIGHEST_PRIORITY;
+ } else if (priority <= 20) {
+ ioPriority = com.destroystokyo.paper.io.PrioritizedTaskQueue.HIGH_PRIORITY;
+ }
+ chunkMap.level.asyncChunkTaskManager.raisePriority(pos.x, pos.z, ioPriority);
+ }
+ if (getCurrentPriority() != priority) {
+ this.onLevelChange.onLevelChange(this.pos, this::getCurrentPriority, priority, this::setPriority); // use preferred priority
+ int neighborsPriority = getNeighborsPriority();
+ this.neighbors.forEach((neighbor, neighborDesired) -> neighbor.setNeighborPriority(this, neighborsPriority));
+ }
+ // Paper end
this.oldTicketLevel = this.ticketLevel;
// CraftBukkit start
// ChunkLoadEvent: Called after the chunk is loaded: isChunkLoaded returns true and chunk is ready to be modified by plugins.
if (!playerchunk_state.isOrAfter(ChunkHolder.FullChunkStatus.BORDER) && playerchunk_state1.isOrAfter(ChunkHolder.FullChunkStatus.BORDER)) {
- this.getFutureIfPresentUnchecked(ChunkStatus.FULL).thenAccept((either) -> {
+ this.getStatusFutureUncheckedMain(ChunkStatus.FULL).thenAccept((either) -> { // Paper - ensure main
LevelChunk chunk = (LevelChunk)either.left().orElse(null);
if (chunk != null) {
chunkStorage.callbackExecutor.execute(() -> {
@@ -691,6 +839,7 @@ public class ChunkHolder {
public interface LevelChangeListener {
+ default void changePriority(ChunkPos chunkcoordintpair, IntSupplier intsupplier, int i, IntConsumer intconsumer) { onLevelChange(chunkcoordintpair, intsupplier, i, intconsumer); } // Paper - OBFHELPER
void onLevelChange(ChunkPos pos, IntSupplier levelGetter, int targetLevel, IntConsumer levelSetter);
}
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 8070acde38c47c364c1d26ec3b7d65da037554a5..7a1f6d1807757a43a7aa471db651404c06720820 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -14,6 +14,7 @@ import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
import it.unimi.dsi.fastutil.longs.Long2ByteMap;
import it.unimi.dsi.fastutil.longs.Long2ByteOpenHashMap;
+import it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap; // Paper
import it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap;
import it.unimi.dsi.fastutil.longs.Long2ObjectMap.Entry;
import it.unimi.dsi.fastutil.longs.LongIterator;
@@ -51,6 +52,7 @@ import net.minecraft.CrashReport;
import net.minecraft.CrashReportCategory;
import net.minecraft.ReportedException;
import net.minecraft.Util;
+import net.minecraft.core.BlockPos;
import net.minecraft.core.SectionPos;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.network.protocol.Packet;
@@ -102,6 +104,7 @@ import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bukkit.entity.Player; // CraftBukkit
+import org.spigotmc.AsyncCatcher;
public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider {
@@ -139,6 +142,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
public final ServerLevel level;
private final ThreadedLevelLightEngine lightEngine;
private final BlockableEventLoop<Runnable> mainThreadExecutor;
+ final java.util.concurrent.Executor mainInvokingExecutor; // Paper
public final ChunkGenerator generator;
private final Supplier<DimensionDataStorage> overworldDataStorage; public final Supplier<DimensionDataStorage> getWorldPersistentDataSupplier() { return this.overworldDataStorage; } // Paper - OBFHELPER
private final PoiManager poiManager;
@@ -176,6 +180,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
@Override
public void execute(Runnable runnable) {
+ AsyncCatcher.catchOp("Callback Executor execute");
if (queued == null) {
queued = new java.util.ArrayDeque<>();
}
@@ -184,6 +189,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
@Override
public void run() {
+ AsyncCatcher.catchOp("Callback Executor run");
if (queued == null) {
return;
}
@@ -338,6 +344,15 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
this.level = worldserver;
this.generator = chunkGenerator;
this.mainThreadExecutor = mainThreadExecutor;
+ // Paper start
+ this.mainInvokingExecutor = (run) -> {
+ if (MCUtil.isMainThread()) {
+ run.run();
+ } else {
+ mainThreadExecutor.execute(run);
+ }
+ };
+ // Paper end
ProcessorMailbox<Runnable> threadedmailbox = ProcessorMailbox.create(workerExecutor, "worldgen");
mainThreadExecutor.getClass();
@@ -432,6 +447,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
this.playerViewDistanceTickMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets,
(ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> newState) -> {
+ checkHighPriorityChunks(player);
if (newState.size() != 1) {
return;
}
@@ -450,7 +466,11 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
}
ChunkPos chunkPos = new ChunkPos(rangeX, rangeZ);
ChunkMap.this.level.getChunkSource().removeTicketAtLevel(TicketType.PLAYER, chunkPos, 31, chunkPos); // entity ticking level, TODO check on update
- });
+ ChunkMap.this.level.getChunkSource().clearPriorityTickets(chunkPos);
+ }, (player, prevPos, newPos) -> {
+ player.lastHighPriorityChecked = -1; // reset and recheck
+ checkHighPriorityChunks(player);
+ });
this.playerViewDistanceNoTickMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets);
this.playerViewDistanceBroadcastMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets,
(ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ,
@@ -467,6 +487,115 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
});
// Paper end - no-tick view distance
}
+ // Paper start - Chunk Prioritization
+ public void queueHolderUpdate(ChunkHolder playerchunk) {
+ Runnable runnable = () -> {
+ if (isUnloading(playerchunk)) {
+ return; // unloaded
+ }
+ distanceManager.pendingChunkUpdates.add(playerchunk);
+ if (!distanceManager.pollingPendingChunkUpdates) {
+ level.getChunkSource().runDistanceManagerUpdates();
+ }
+ };
+ if (MCUtil.isMainThread()) {
+ // We can't use executor here because it will not execute tasks if its currently in the middle of executing tasks...
+ runnable.run();
+ } else {
+ mainThreadExecutor.execute(runnable);
+ }
+ }
+
+ private boolean isUnloading(ChunkHolder playerchunk) {
+ return playerchunk == null || toDrop.contains(playerchunk.pos.toLong());
+ }
+
+ private void updateChunkPriorityMap(Long2IntOpenHashMap map, long chunk, int level) {
+ int prev = map.getOrDefault(chunk, -1);
+ if (level > prev) {
+ map.put(chunk, level);
+ }
+ }
+
+ public void checkHighPriorityChunks(ServerPlayer player) {
+ int currentTick = MinecraftServer.currentTick;
+ if (currentTick - player.lastHighPriorityChecked < 20 || !player.isRealPlayer) { // weed out fake players
+ return;
+ }
+ player.lastHighPriorityChecked = currentTick;
+ Long2IntOpenHashMap priorities = new Long2IntOpenHashMap();
+
+ int viewDistance = getEffectiveNoTickViewDistance();
+ BlockPos.MutableBlockPos pos = new BlockPos.MutableBlockPos();
+
+ // Prioritize circular near
+ double playerChunkX = Mth.floor(player.getX()) >> 4;
+ double playerChunkZ = Mth.floor(player.getZ()) >> 4;
+ pos.setValues(player.getX(), 0, player.getZ());
+ double twoThirdModifier = 2D / 3D;
+ MCUtil.getSpiralOutChunks(pos, Math.min(6, viewDistance)).forEach(coord -> {
+ if (shouldSkipPrioritization(coord)) return;
+
+ double dist = MCUtil.distance(playerChunkX, 0, playerChunkZ, coord.x, 0, coord.z);
+ // Prioritize immediate
+ if (dist <= 4) {
+ updateChunkPriorityMap(priorities, coord.toLong(), (int) (27 - dist));
+ return;
+ }
+
+ // Prioritize nearby chunks
+ updateChunkPriorityMap(priorities, coord.toLong(), (int) (20 - dist * twoThirdModifier));
+ });
+
+ // Prioritize Frustum near 3
+ ChunkPos front3 = player.getChunkInFront(3);
+ pos.setValues(front3.x << 4, 0, front3.z << 4);
+ MCUtil.getSpiralOutChunks(pos, Math.min(5, viewDistance)).forEach(coord -> {
+ if (shouldSkipPrioritization(coord)) return;
+
+ double dist = MCUtil.distance(playerChunkX, 0, playerChunkZ, coord.x, 0, coord.z);
+ updateChunkPriorityMap(priorities, coord.toLong(), (int) (25 - dist * twoThirdModifier));
+ });
+
+ // Prioritize Frustum near 5
+ if (viewDistance > 4) {
+ ChunkPos front5 = player.getChunkInFront(5);
+ pos.setValues(front5.x << 4, 0, front5.z << 4);
+ MCUtil.getSpiralOutChunks(pos, 4).forEach(coord -> {
+ if (shouldSkipPrioritization(coord)) return;
+
+ double dist = MCUtil.distance(playerChunkX, 0, playerChunkZ, coord.x, 0, coord.z);
+ updateChunkPriorityMap(priorities, coord.toLong(), (int) (25 - dist * twoThirdModifier));
+ });
+ }
+
+ // Prioritize Frustum far 7
+ if (viewDistance > 6) {
+ ChunkPos front7 = player.getChunkInFront(7);
+ pos.setValues(front7.x << 4, 0, front7.z << 4);
+ MCUtil.getSpiralOutChunks(pos, 3).forEach(coord -> {
+ if (shouldSkipPrioritization(coord)) {
+ return;
+ }
+ double dist = MCUtil.distance(playerChunkX, 0, playerChunkZ, coord.x, 0, coord.z);
+ updateChunkPriorityMap(priorities, coord.toLong(), (int) (25 - dist * twoThirdModifier));
+ });
+ }
+
+ if (priorities.isEmpty()) return;
+ distanceManager.delayDistanceManagerTick = true;
+ priorities.long2IntEntrySet().fastForEach(entry -> distanceManager.markHighPriority(new ChunkPos(entry.getLongKey()), entry.getIntValue()));
+ distanceManager.delayDistanceManagerTick = false;
+ level.getChunkSource().runDistanceManagerUpdates();
+
+ }
+
+ private boolean shouldSkipPrioritization(ChunkPos coord) {
+ if (playerViewDistanceNoTickMap.getObjectsInRange(coord.toLong()) == null) return true;
+ ChunkHolder chunk = getUpdatingChunkIfPresent(coord.toLong());
+ return chunk != null && (chunk.isFullChunkReady());
+ }
+ // Paper end
public void updatePlayerMobTypeMap(Entity entity) {
if (!this.level.paperConfig.perPlayerMobSpawns) {
@@ -596,6 +725,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
List<CompletableFuture<Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>>> list = Lists.newArrayList();
int j = centerChunk.x;
int k = centerChunk.z;
+ ChunkHolder requestingNeighbor = getUpdatingChunkIfPresent(centerChunk.toLong()); // Paper
for (int l = -margin; l <= margin; ++l) {
for (int i1 = -margin; i1 <= margin; ++i1) {
@@ -614,6 +744,14 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
ChunkStatus chunkstatus = (ChunkStatus) distanceToStatus.apply(j1);
CompletableFuture<Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>> completablefuture = playerchunk.getOrScheduleFuture(chunkstatus, this);
+ // Paper start
+ if (requestingNeighbor != null && requestingNeighbor != playerchunk && !completablefuture.isDone()) {
+ requestingNeighbor.onNeighborRequest(playerchunk, chunkstatus);
+ completablefuture.thenAccept(either -> {
+ requestingNeighbor.onNeighborDone(playerchunk, chunkstatus, either.left().orElse(null));
+ });
+ }
+ // Paper end
list.add(completablefuture);
}
@@ -1081,14 +1219,22 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
};
CompletableFuture<CompoundTag> chunkSaveFuture = this.level.asyncChunkTaskManager.getChunkSaveFuture(pos.x, pos.z);
+ ChunkHolder playerChunk = getUpdatingChunkIfPresent(pos.toLong());
+ int chunkPriority = playerChunk != null ? playerChunk.getCurrentPriority() : 33;
+ int priority = com.destroystokyo.paper.io.PrioritizedTaskQueue.NORMAL_PRIORITY;
+
+ if (chunkPriority <= 10) {
+ priority = com.destroystokyo.paper.io.PrioritizedTaskQueue.HIGHEST_PRIORITY;
+ } else if (chunkPriority <= 20) {
+ priority = com.destroystokyo.paper.io.PrioritizedTaskQueue.HIGH_PRIORITY;
+ }
+ boolean isHighestPriority = priority == com.destroystokyo.paper.io.PrioritizedTaskQueue.HIGHEST_PRIORITY;
if (chunkSaveFuture != null) {
- this.level.asyncChunkTaskManager.scheduleChunkLoad(pos.x, pos.z,
- com.destroystokyo.paper.io.PrioritizedTaskQueue.HIGH_PRIORITY, chunkHolderConsumer, false, chunkSaveFuture);
- this.level.asyncChunkTaskManager.raisePriority(pos.x, pos.z, com.destroystokyo.paper.io.PrioritizedTaskQueue.HIGH_PRIORITY);
+ this.level.asyncChunkTaskManager.scheduleChunkLoad(pos.x, pos.z, priority, chunkHolderConsumer, isHighestPriority, chunkSaveFuture);
} else {
- this.level.asyncChunkTaskManager.scheduleChunkLoad(pos.x, pos.z,
- com.destroystokyo.paper.io.PrioritizedTaskQueue.NORMAL_PRIORITY, chunkHolderConsumer, false);
+ this.level.asyncChunkTaskManager.scheduleChunkLoad(pos.x, pos.z, priority, chunkHolderConsumer, isHighestPriority);
}
+ this.level.asyncChunkTaskManager.raisePriority(pos.x, pos.z, priority);
return ret;
// Paper end
}
@@ -1233,7 +1379,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
long i = playerchunk.getPos().toLong();
playerchunk.getClass();
- mailbox.tell(ChunkTaskPriorityQueueSorter.message(runnable, i, playerchunk::getTicketLevel));
+ mailbox.tell(ChunkTaskPriorityQueueSorter.message(runnable, i, () -> 1)); // Paper - final loads are always urgent!
});
}
diff --git a/src/main/java/net/minecraft/server/level/DistanceManager.java b/src/main/java/net/minecraft/server/level/DistanceManager.java
index c9b4025f6c3d1be7bca2ff7337dd86e37d21b53e..e41f388e8350010a471410436adf15a906f07e97 100644
--- a/src/main/java/net/minecraft/server/level/DistanceManager.java
+++ b/src/main/java/net/minecraft/server/level/DistanceManager.java
@@ -21,7 +21,10 @@ import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Executor;
import javax.annotation.Nullable;
+import net.minecraft.core.BlockPos;
import net.minecraft.core.SectionPos;
+import net.minecraft.server.MCUtil;
+import net.minecraft.server.MinecraftServer;
import net.minecraft.util.SortedArraySet;
import net.minecraft.util.thread.ProcessorHandle;
import net.minecraft.world.level.ChunkPos;
@@ -29,6 +32,7 @@ import net.minecraft.world.level.chunk.ChunkStatus;
import net.minecraft.world.level.chunk.LevelChunk;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
+import org.spigotmc.AsyncCatcher; // Paper
public abstract class DistanceManager {
@@ -52,7 +56,7 @@ public abstract class DistanceManager {
private final ChunkTaskPriorityQueueSorter ticketThrottler;
private final ProcessorHandle<ChunkTaskPriorityQueueSorter.Message<Runnable>> ticketThrottlerInput;
private final ProcessorHandle<ChunkTaskPriorityQueueSorter.Release> ticketThrottlerReleaser;
- private final LongSet ticketsToRelease = new LongOpenHashSet();
+ private final LongSet ticketsToRelease = new LongOpenHashSet(); public final LongSet getOnPlayerTicketAddQueue() { return ticketsToRelease; } // Paper - OBFHELPER
private final Executor mainThreadExecutor;
private long ticketTickCounter;
@@ -90,6 +94,7 @@ public abstract class DistanceManager {
}
private static int getTicketLevelAt(SortedArraySet<Ticket<?>> arraysetsorted) {
+ AsyncCatcher.catchOp("ChunkMapDistance::getLowestTicketLevel"); // Paper
return !arraysetsorted.isEmpty() ? ((Ticket) arraysetsorted.first()).getTicketLevel() : ChunkMap.MAX_CHUNK_DISTANCE + 1;
}
@@ -103,6 +108,7 @@ public abstract class DistanceManager {
public boolean runAllUpdates(ChunkMap chunkStorage) {
//this.f.a(); // Paper - no longer used
+ AsyncCatcher.catchOp("DistanceManagerTick"); // Paper
this.playerTicketManager.runAllUpdates();
int i = Integer.MAX_VALUE - this.ticketTracker.runDistanceUpdates(Integer.MAX_VALUE);
boolean flag = i != 0;
@@ -113,11 +119,13 @@ public abstract class DistanceManager {
// Paper start
if (!this.pendingChunkUpdates.isEmpty()) {
+ this.pollingPendingChunkUpdates = true; try {
while(!this.pendingChunkUpdates.isEmpty()) {
ChunkHolder remove = this.pendingChunkUpdates.remove();
remove.isUpdateQueued = false;
remove.updateFutures(chunkStorage);
}
+ } finally { this.pollingPendingChunkUpdates = false; }
// Paper end
return true;
} else {
@@ -153,8 +161,10 @@ public abstract class DistanceManager {
return flag;
}
}
+ boolean pollingPendingChunkUpdates = false; // Paper
private boolean addTicket(long i, Ticket<?> ticket) { // CraftBukkit - void -> boolean
+ AsyncCatcher.catchOp("ChunkMapDistance::addTicket"); // Paper
SortedArraySet<Ticket<?>> arraysetsorted = this.getTickets(i);
int j = getTicketLevelAt(arraysetsorted);
Ticket<?> ticket1 = (Ticket) arraysetsorted.addOrGet(ticket); // CraftBukkit - decompile error
@@ -168,7 +178,9 @@ public abstract class DistanceManager {
}
private boolean removeTicket(long i, Ticket<?> ticket) { // CraftBukkit - void -> boolean
+ AsyncCatcher.catchOp("ChunkMapDistance::removeTicket"); // Paper
SortedArraySet<Ticket<?>> arraysetsorted = this.getTickets(i);
+ int oldLevel = getTicketLevelAt(arraysetsorted); // Paper
boolean removed = false; // CraftBukkit
if (arraysetsorted.remove(ticket)) {
@@ -179,7 +191,8 @@ public abstract class DistanceManager {
this.tickets.remove(i);
}
- this.ticketTracker.update(i, getTicketLevelAt(arraysetsorted), false);
+ int newLevel = getTicketLevelAt(arraysetsorted); // Paper
+ if (newLevel > oldLevel) this.ticketTracker.update(i, newLevel, false); // Paper
return removed; // CraftBukkit
}
@@ -188,6 +201,135 @@ public abstract class DistanceManager {
this.addTicketAtLevel(type, pos, level, argument);
}
+ // Paper start
+ public static final int PRIORITY_TICKET_LEVEL = ChunkMap.MAX_CHUNK_DISTANCE;
+ public static final int URGENT_PRIORITY = 29;
+ public boolean delayDistanceManagerTick = false;
+ public boolean markUrgent(ChunkPos coords) {
+ return addPriorityTicket(coords, TicketType.URGENT, URGENT_PRIORITY);
+ }
+ public boolean markHighPriority(ChunkPos coords, int priority) {
+ priority = Math.min(URGENT_PRIORITY - 1, Math.max(1, priority));
+ return addPriorityTicket(coords, TicketType.PRIORITY, priority);
+ }
+
+ public void markAreaHighPriority(ChunkPos center, int priority, int radius) {
+ delayDistanceManagerTick = true;
+ priority = Math.min(URGENT_PRIORITY - 1, Math.max(1, priority));
+ int finalPriority = priority;
+ MCUtil.getSpiralOutChunks(center.asPosition(), radius).forEach(coords -> {
+ addPriorityTicket(coords, TicketType.PRIORITY, finalPriority);
+ });
+ delayDistanceManagerTick = false;
+ chunkMap.level.getChunkSource().runDistanceManagerUpdates();
+ }
+
+ public void clearAreaPriorityTickets(ChunkPos center, int radius) {
+ delayDistanceManagerTick = true;
+ MCUtil.getSpiralOutChunks(center.asPosition(), radius).forEach(coords -> {
+ this.removeTicket(coords.toLong(), new Ticket<ChunkPos>(TicketType.PRIORITY, PRIORITY_TICKET_LEVEL, coords));
+ });
+ delayDistanceManagerTick = false;
+ chunkMap.level.getChunkSource().runDistanceManagerUpdates();
+ }
+
+ private boolean hasPlayerTicket(ChunkPos coords, int level) {
+ SortedArraySet<Ticket<?>> tickets = this.tickets.get(coords.toLong());
+ if (tickets == null || tickets.isEmpty()) {
+ return false;
+ }
+ for (Ticket<?> ticket : tickets) {
+ if (ticket.getType() == TicketType.PLAYER && ticket.getTicketLevel() == level) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ private boolean addPriorityTicket(ChunkPos coords, TicketType<ChunkPos> ticketType, int priority) {
+ AsyncCatcher.catchOp("ChunkMapDistance::addPriorityTicket");
+ long pair = coords.toLong();
+ ChunkHolder chunk = chunkMap.getUpdatingChunkIfPresent(pair);
+ boolean needsTicket = chunkMap.playerViewDistanceNoTickMap.getObjectsInRange(pair) != null && !hasPlayerTicket(coords, 33);
+
+ if (needsTicket) {
+ Ticket<?> ticket = new Ticket<>(TicketType.PLAYER, 33, coords);
+ getOnPlayerTicketAddQueue().add(pair);
+ addTicket(pair, ticket);
+ }
+ if ((chunk != null && chunk.isFullChunkReady())) {
+ if (needsTicket) {
+ chunkMap.level.getChunkSource().runDistanceManagerUpdates();
+ }
+ return needsTicket;
+ }
+
+ boolean success;
+ if (!(success = updatePriorityTicket(coords, ticketType, priority))) {
+ Ticket<ChunkPos> ticket = new Ticket<ChunkPos>(ticketType, PRIORITY_TICKET_LEVEL, coords);
+ ticket.priority = priority;
+ success = this.addTicket(pair, ticket);
+ } else {
+ if (chunk == null) {
+ chunk = chunkMap.getUpdatingChunkIfPresent(pair);
+ }
+ chunkMap.queueHolderUpdate(chunk);
+ }
+
+ //chunkMap.world.getWorld().spawnParticle(priority <= 15 ? org.bukkit.Particle.EXPLOSION_HUGE : org.bukkit.Particle.EXPLOSION_NORMAL, chunkMap.world.getWorld().getPlayers(), null, coords.x << 4, 70, coords.z << 4, 2, 0, 0, 0, 1, null, true);
+
+ chunkMap.level.getChunkSource().runDistanceManagerUpdates();
+
+ return success;
+ }
+
+ private boolean updatePriorityTicket(ChunkPos coords, TicketType<ChunkPos> type, int priority) {
+ SortedArraySet<Ticket<?>> tickets = this.tickets.get(coords.toLong());
+ if (tickets == null) {
+ return false;
+ }
+ for (Ticket<?> ticket : tickets) {
+ if (ticket.getType() == type) {
+ // We only support increasing, not decreasing, too complicated
+ ticket.setCurrentTick(this.ticketTickCounter);
+ ticket.priority = Math.max(ticket.priority, priority);
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ public int getChunkPriority(ChunkPos coords) {
+ AsyncCatcher.catchOp("ChunkMapDistance::getChunkPriority");
+ SortedArraySet<Ticket<?>> tickets = this.tickets.get(coords.toLong());
+ if (tickets == null) {
+ return 0;
+ }
+ for (Ticket<?> ticket : tickets) {
+ if (ticket.getType() == TicketType.URGENT) {
+ return URGENT_PRIORITY;
+ }
+ }
+ for (Ticket<?> ticket : tickets) {
+ if (ticket.getType() == TicketType.PRIORITY && ticket.priority > 0) {
+ return ticket.priority;
+ }
+ }
+ return 0;
+ }
+
+ public void clearPriorityTickets(ChunkPos coords) {
+ AsyncCatcher.catchOp("ChunkMapDistance::clearPriority");
+ this.removeTicket(coords.toLong(), new Ticket<ChunkPos>(TicketType.PRIORITY, PRIORITY_TICKET_LEVEL, coords));
+ }
+
+ public void clearUrgent(ChunkPos coords) {
+ AsyncCatcher.catchOp("ChunkMapDistance::clearUrgent");
+ this.removeTicket(coords.toLong(), new Ticket<ChunkPos>(TicketType.URGENT, PRIORITY_TICKET_LEVEL, coords));
+ }
+ // Paper end
public <T> boolean addTicketAtLevel(TicketType<T> ticketType, ChunkPos chunkcoordintpair, int level, T identifier) {
return this.addTicket(chunkcoordintpair.toLong(), new Ticket<>(ticketType, level, identifier));
// CraftBukkit end
@@ -358,7 +500,7 @@ public abstract class DistanceManager {
class PlayerTicketTracker extends DistanceManager.FixedPlayerDistanceChunkTracker {
- private int viewDistance = 0;
+ private int viewDistance = 0; private int getViewDistance() { return viewDistance; } private void setViewDistance(int value) { this.viewDistance = value; } // Paper - OBFHELPER
private final Long2IntMap queueLevels = Long2IntMaps.synchronize(new Long2IntOpenHashMap());
private final LongSet toUpdate = new LongOpenHashSet();
@@ -374,41 +516,68 @@ public abstract class DistanceManager {
public void updateViewDistance(int watchDistance) {
ObjectIterator objectiterator = this.chunks.long2ByteEntrySet().iterator();
+ // Paper start - set the view distance before scheduling chunk loads/unloads
+ int lastViewDistance = getViewDistance();
+ setViewDistance(watchDistance);
+ // Paper end
while (objectiterator.hasNext()) {
Long2ByteMap.Entry it_unimi_dsi_fastutil_longs_long2bytemap_entry = (Long2ByteMap.Entry) objectiterator.next(); // Paper - decompile fix
byte b0 = it_unimi_dsi_fastutil_longs_long2bytemap_entry.getByteValue();
long j = it_unimi_dsi_fastutil_longs_long2bytemap_entry.getLongKey();
- this.onLevelChange(j, b0, this.haveTicketFor(b0), b0 <= watchDistance - 2);
+ this.onLevelChange(j, b0, b0 <= lastViewDistance - 2, this.haveTicketFor(b0)); // Paper
}
- this.viewDistance = watchDistance;
+ //this.e = i; // Paper - view distance is now set further up
}
private void onLevelChange(long pos, int distance, boolean oldWithinViewDistance, boolean withinViewDistance) {
if (oldWithinViewDistance != withinViewDistance) {
- Ticket<?> ticket = new Ticket<>(TicketType.PLAYER, 33, new ChunkPos(pos)); // Paper - no-tick view distance
+ ChunkPos coords = new ChunkPos(pos); // Paper
+ Ticket<?> ticket = new Ticket<>(TicketType.PLAYER, 33, coords); // Paper - no-tick view distance
if (withinViewDistance) {
- DistanceManager.this.ticketThrottlerInput.tell(ChunkTaskPriorityQueueSorter.message(() -> {
+ scheduleChunkLoad(pos, MinecraftServer.currentTick, distance, (priority) -> { // Paper - smarter ticket delay based on frustum and distance
+ // Paper start - recheck its still valid if not cancel
+ if (!isChunkInRange(pos)) {
+ DistanceManager.this.ticketThrottlerReleaser.tell(ChunkTaskPriorityQueueSorter.release(() -> {
+ DistanceManager.this.mainThreadExecutor.execute(() -> {
+ DistanceManager.this.removeTicket(pos, ticket);
+ DistanceManager.this.clearPriorityTickets(coords);
+ });
+ }, pos, false));
+ return;
+ }
+ // abort early if we got a ticket already
+ if (hasPlayerTicket(coords, 33)) return;
+ // skip player ticket throttle for near chunks
+ if (priority <= 3) {
+ DistanceManager.this.addTicket(pos, ticket);
+ DistanceManager.this.ticketsToRelease.add(pos);
+ return;
+ }
+ // Paper end
+ DistanceManager.this.ticketThrottlerInput.tell(ChunkTaskPriorityQueueSorter.message(() -> { // CraftBukkit - decompile error
DistanceManager.this.mainThreadExecutor.execute(() -> {
- if (this.haveTicketFor(this.getLevel(pos))) {
+ if (isChunkInRange(pos)) { if (!hasPlayerTicket(coords, 33)) { // Paper - high priority might of already added it
DistanceManager.this.addTicket(pos, ticket);
DistanceManager.this.ticketsToRelease.add(pos);
- } else {
- DistanceManager.this.ticketThrottlerReleaser.tell(ChunkTaskPriorityQueueSorter.release(() -> {
+ }} else { // Paper
+ DistanceManager.this.ticketThrottlerReleaser.tell(ChunkTaskPriorityQueueSorter.release(() -> { // CraftBukkit - decompile error
}, pos, false));
}
});
}, pos, () -> {
- return distance;
+ return Math.min(ChunkMap.MAX_CHUNK_DISTANCE, priority); // Paper
}));
+ }); // Paper
} else {
DistanceManager.this.ticketThrottlerReleaser.tell(ChunkTaskPriorityQueueSorter.release(() -> {
DistanceManager.this.mainThreadExecutor.execute(() -> {
DistanceManager.this.removeTicket(pos, ticket);
+ DistanceManager.this.clearPriorityTickets(coords); // Paper
});
}, pos, true));
}
@@ -416,6 +585,101 @@ public abstract class DistanceManager {
}
+ // Paper start - smart scheduling of player tickets
+ private boolean isChunkInRange(long i) {
+ return this.isLoadedChunkLevel(this.getChunkLevel(i));
+ }
+ public void scheduleChunkLoad(long i, long startTick, int initialDistance, java.util.function.Consumer<Integer> task) {
+ long elapsed = MinecraftServer.currentTick - startTick;
+ ChunkPos chunkPos = new ChunkPos(i);
+ ChunkHolder updatingChunk = chunkMap.getUpdatingChunkIfPresent(i);
+ if ((updatingChunk != null && updatingChunk.isFullChunkReady()) || !isChunkInRange(i) || getChunkPriority(chunkPos) > 0) { // Copied from above
+ // no longer needed
+ task.accept(1);
+ return;
+ }
+
+ int desireDelay = 0;
+ double minDist = Double.MAX_VALUE;
+ com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> players = chunkMap.playerViewDistanceNoTickMap.getObjectsInRange(i);
+ if (elapsed == 0 && initialDistance <= 4) {
+ // Aim for no delay on initial 6 chunk radius tickets save on performance of the below code to only > 6
+ minDist = initialDistance;
+ } else if (players != null) {
+ Object[] backingSet = players.getBackingSet();
+
+ BlockPos blockPos = chunkPos.asPosition();
+
+ boolean isFront = false;
+ BlockPos.MutableBlockPos pos = new BlockPos.MutableBlockPos();
+ for (int index = 0, len = backingSet.length; index < len; ++index) {
+ if (!(backingSet[index] instanceof ServerPlayer)) {
+ continue;
+ }
+ ServerPlayer player = (ServerPlayer) backingSet[index];
+
+ ChunkPos pointInFront = player.getChunkInFront(5);
+ pos.setValues(pointInFront.x << 4, 0, pointInFront.z << 4);
+ double frontDist = MCUtil.distanceSq(pos, blockPos);
+
+ pos.setValues(player.getX(), 0, player.getZ());
+ double center = MCUtil.distanceSq(pos, blockPos);
+
+ double dist = Math.min(frontDist, center);
+ if (!isFront) {
+ ChunkPos pointInBack = player.getChunkInFront(-7);
+ pos.setValues(pointInBack.x << 4, 0, pointInBack.z << 4);
+ double backDist = MCUtil.distanceSq(pos, blockPos);
+ if (frontDist < backDist) {
+ isFront = true;
+ }
+ }
+ if (dist < minDist) {
+ minDist = dist;
+ }
+ }
+ if (minDist == Double.MAX_VALUE) {
+ minDist = 15;
+ } else {
+ minDist = Math.sqrt(minDist) / 16;
+ }
+ if (minDist > 4) {
+ int desiredTimeDelayMax = isFront ?
+ (minDist < 10 ? 7 : 15) : // Front
+ (minDist < 10 ? 15 : 45); // Back
+ desireDelay += (desiredTimeDelayMax * 20) * (minDist / 32);
+ }
+ } else {
+ minDist = initialDistance;
+ desireDelay = 1;
+ }
+ long delay = desireDelay - elapsed;
+ if (delay <= 0 && minDist > 4 && minDist < Double.MAX_VALUE) {
+ boolean hasAnyNeighbor = false;
+ for (int x = -1; x <= 1; x++) {
+ for (int z = -1; z <= 1; z++) {
+ if (x == 0 && z == 0) continue;
+ long pair = ChunkPos.asLong(chunkPos.x + x, chunkPos.z + z);
+ ChunkHolder neighbor = chunkMap.getUpdatingChunkIfPresent(pair);
+ ChunkStatus current = neighbor != null ? neighbor.getChunkHolderStatus() : null;
+ if (current != null && current.isAtLeastStatus(ChunkStatus.LIGHT)) {
+ hasAnyNeighbor = true;
+ }
+ }
+ }
+ if (!hasAnyNeighbor) {
+ delay += 20;
+ }
+ }
+ if (delay <= 0) {
+ task.accept((int) minDist);
+ } else {
+ int taskDelay = (int) Math.min(delay, minDist >= 10 ? 40 : (minDist < 6 ? 5 : 20));
+ MCUtil.scheduleTask(taskDelay, () -> scheduleChunkLoad(i, startTick, initialDistance, task), "Player Ticket Delayer");
+ }
+ }
+ // Paper end
+
@Override
public void runAllUpdates() {
super.runAllUpdates();
@@ -447,6 +711,7 @@ public abstract class DistanceManager {
}
+ private boolean isLoadedChunkLevel(int i) { return haveTicketFor(i); } // Paper - OBFHELPER
private boolean haveTicketFor(int distance) {
return distance <= this.viewDistance - 2;
}
@@ -463,6 +728,7 @@ public abstract class DistanceManager {
this.chunks.defaultReturnValue((byte) (i + 2));
}
+ protected final int getChunkLevel(long i) { return getLevel(i); } // Paper - OBFHELPER
@Override
protected int getLevel(long id) {
return this.chunks.get(id);
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
index 52c2e81f2e2bcd74d4e9aac3ecb5ab618e289abd..f36badcafbad7fb4537ffdf54d9e266ae3d72459 100644
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
@@ -467,6 +467,26 @@ public class ServerChunkCache extends ChunkSource {
public <T> void removeTicketAtLevel(TicketType<T> ticketType, ChunkPos chunkPos, int ticketLevel, T identifier) {
this.distanceManager.removeTicketAtLevel(ticketType, chunkPos, ticketLevel, identifier);
}
+
+ public boolean markUrgent(ChunkPos coords) {
+ return this.distanceManager.markUrgent(coords);
+ }
+
+ public boolean markHighPriority(ChunkPos coords, int priority) {
+ return this.distanceManager.markHighPriority(coords, priority);
+ }
+
+ public void markAreaHighPriority(ChunkPos center, int priority, int radius) {
+ this.distanceManager.markAreaHighPriority(center, priority, radius);
+ }
+
+ public void clearAreaPriorityTickets(ChunkPos center, int radius) {
+ this.distanceManager.clearAreaPriorityTickets(center, radius);
+ }
+
+ public void clearPriorityTickets(ChunkPos coords) {
+ this.distanceManager.clearPriorityTickets(coords);
+ }
// Paper end
@Nullable
@@ -505,6 +525,8 @@ public class ServerChunkCache extends ChunkSource {
if (!completablefuture.isDone()) { // Paper
// Paper start - async chunk io/loading
+ ChunkPos pair = new ChunkPos(x1, z1);
+ this.distanceManager.markUrgent(pair);
this.level.asyncChunkTaskManager.raisePriority(x1, z1, com.destroystokyo.paper.io.PrioritizedTaskQueue.HIGHEST_PRIORITY);
com.destroystokyo.paper.io.chunk.ChunkTaskManager.pushChunkWait(this.level, x1, z1);
// Paper end
@@ -513,6 +535,8 @@ public class ServerChunkCache extends ChunkSource {
this.mainThreadProcessor.managedBlock(completablefuture::isDone);
com.destroystokyo.paper.io.chunk.ChunkTaskManager.popChunkWait(); // Paper - async chunk debug
this.level.timings.syncChunkLoad.stopTiming(); // Paper
+ this.distanceManager.clearPriorityTickets(pair); // Paper
+ this.distanceManager.clearUrgent(pair); // Paper
} // Paper
ichunkaccess = (ChunkAccess) ((Either) completablefuture.join()).map((ichunkaccess1) -> {
return ichunkaccess1;
@@ -565,10 +589,12 @@ public class ServerChunkCache extends ChunkSource {
if (flag && !currentlyUnloading) {
// CraftBukkit end
this.distanceManager.addTicket(TicketType.UNKNOWN, chunkcoordintpair, l, chunkcoordintpair);
+ if (isUrgent) this.distanceManager.markUrgent(chunkcoordintpair); // Paper
if (this.chunkAbsent(playerchunk, l)) {
ProfilerFiller gameprofilerfiller = this.level.getProfiler();
gameprofilerfiller.push("chunkLoad");
+ distanceManager.delayDistanceManagerTick = false; // Paper - ensure this is never false
this.runDistanceManagerUpdates();
playerchunk = this.getVisibleChunkIfPresent(k);
gameprofilerfiller.pop();
@@ -577,8 +603,13 @@ public class ServerChunkCache extends ChunkSource {
}
}
}
-
- return this.chunkAbsent(playerchunk, l) ? ChunkHolder.UNLOADED_CHUNK_FUTURE : playerchunk.getOrScheduleFuture(chunkstatus, this.chunkMap);
+ // Paper start
+ CompletableFuture<Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>> future = this.chunkAbsent(playerchunk, l) ? ChunkHolder.UNLOADED_CHUNK_FUTURE : playerchunk.getOrScheduleFuture(chunkstatus, this.chunkMap);
+ if (isUrgent) {
+ future.thenAccept(either -> this.distanceManager.clearUrgent(chunkcoordintpair));
+ }
+ return future;
+ // Paper end
}
private boolean chunkAbsent(@Nullable ChunkHolder holder, int maxLevel) {
@@ -630,6 +661,7 @@ public class ServerChunkCache extends ChunkSource {
}
public boolean runDistanceManagerUpdates() { // Paper - private -> public
+ if (distanceManager.delayDistanceManagerTick) return false; // Paper
boolean flag = this.distanceManager.runAllUpdates(this.chunkMap);
boolean flag1 = this.chunkMap.promoteChunkMap();
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 8e4cef60b760be385df81a74834d026f856a78c5..c5717f45a0110492aad41f21cc06fb8cbeb1f791 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -73,6 +73,7 @@ import net.minecraft.network.protocol.game.ClientboundUpdateMobEffectPacket;
import net.minecraft.network.protocol.game.ServerboundClientInformationPacket;
import net.minecraft.resources.ResourceKey;
import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MCUtil;
import net.minecraft.server.MinecraftServer;
import net.minecraft.server.PlayerAdvancements;
import net.minecraft.server.network.ServerGamePacketListenerImpl;
@@ -185,6 +186,12 @@ public class ServerPlayer extends Player implements ContainerListener {
private int lastRecordedArmor = Integer.MIN_VALUE;
private int lastRecordedLevel = Integer.MIN_VALUE;
private int lastRecordedExperience = Integer.MIN_VALUE;
+ public long lastHighPriorityChecked; // Paper
+ public void forceCheckHighPriority() {
+ lastHighPriorityChecked = -1;
+ getLevel().getChunkSource().chunkMap.checkHighPriorityChunks(this);
+ }
+ public boolean isRealPlayer; // Paper
private float lastSentHealth = -1.0E8F;
private int lastSentFood = -99999999;
private boolean lastFoodSaturationZero = true;
@@ -272,6 +279,21 @@ public class ServerPlayer extends Player implements ContainerListener {
this.maxHealthCache = this.getMaxHealth();
this.cachedSingleMobDistanceMap = new com.destroystokyo.paper.util.PooledHashSets.PooledObjectLinkedOpenHashSet<>(this); // Paper
}
+ // Paper start
+ public BlockPos getPointInFront(double inFront) {
+ double rads = Math.toRadians(MCUtil.normalizeYaw(this.yRot+90)); // MC rotates yaw 90 for some odd reason
+ final double x = getX() + inFront * Math.cos(rads);
+ final double z = getZ() + inFront * Math.sin(rads);
+ return new BlockPos(x, getY(), z);
+ }
+
+ public ChunkPos getChunkInFront(double inFront) {
+ double rads = Math.toRadians(MCUtil.normalizeYaw(this.yRot+90)); // MC rotates yaw 90 for some odd reason
+ final double x = getX() + (inFront * 16) * Math.cos(rads);
+ final double z = getZ() + (inFront * 16) * Math.sin(rads);
+ return new ChunkPos(Mth.floor(x) >> 4, Mth.floor(z) >> 4);
+ }
+ // Paper end
// Yes, this doesn't match Vanilla, but it's the best we can do for now.
// If this is an issue, PRs are welcome
@@ -619,6 +641,7 @@ public class ServerPlayer extends Player implements ContainerListener {
if (valid && !this.isSpectator() || this.level.hasChunkAt(this.blockPosition())) { // Paper - don't tick dead players that are not in the world currently (pending respawn)
super.tick();
}
+ if (valid && isAlive() && connection != null) ((ServerLevel)level).getChunkSource().chunkMap.checkHighPriorityChunks(this); // Paper
for (int i = 0; i < this.inventory.getContainerSize(); ++i) {
ItemStack itemstack = this.inventory.getItem(i);
diff --git a/src/main/java/net/minecraft/server/level/Ticket.java b/src/main/java/net/minecraft/server/level/Ticket.java
index c6b5f32153b63ac92df9c4b31b8de168481f79f2..c0bfe136ccb9ad4fc0f8ccdd703254205213ec8e 100644
--- a/src/main/java/net/minecraft/server/level/Ticket.java
+++ b/src/main/java/net/minecraft/server/level/Ticket.java
@@ -8,6 +8,7 @@ public final class Ticket<T> implements Comparable<Ticket<?>> {
private final int ticketLevel;
public final T key; public final T getObjectReason() { return this.key; } // Paper - OBFHELPER
private long createdTick; public final long getCreationTick() { return this.createdTick; } // Paper - OBFHELPER
+ public int priority = 0; // Paper
protected Ticket(TicketType<T> type, int level, T argument) {
this.type = type;
@@ -56,6 +57,7 @@ public final class Ticket<T> implements Comparable<Ticket<?>> {
return this.ticketLevel;
}
+ public final void setCurrentTick(long i) { this.setCreatedTick(i); } // Paper - OBFHELPER
protected void setCreatedTick(long tickCreated) {
this.createdTick = tickCreated;
}
diff --git a/src/main/java/net/minecraft/server/level/TicketType.java b/src/main/java/net/minecraft/server/level/TicketType.java
index 583587457790df826a8a3239a4bd1d0f1dcab1da..2444f6f676db543509b14e8c882491dc3f41b264 100644
--- a/src/main/java/net/minecraft/server/level/TicketType.java
+++ b/src/main/java/net/minecraft/server/level/TicketType.java
@@ -28,6 +28,8 @@ public class TicketType<T> {
public static final TicketType<org.bukkit.plugin.Plugin> PLUGIN_TICKET = create("plugin_ticket", (plugin1, plugin2) -> plugin1.getClass().getName().compareTo(plugin2.getClass().getName())); // CraftBukkit
public static final TicketType<Long> FUTURE_AWAIT = create("future_await", Long::compareTo); // Paper
public static final TicketType<Long> ASYNC_LOAD = create("async_load", Long::compareTo); // Paper
+ public static final TicketType<ChunkPos> PRIORITY = create("priority", Comparator.comparingLong(ChunkPos::toLong), 300); // Paper
+ public static final TicketType<ChunkPos> URGENT = create("urgent", Comparator.comparingLong(ChunkPos::toLong), 300); // Paper
public static <T> TicketType<T> create(String name, Comparator<T> comparator) {
return new TicketType<>(name, comparator, 0L);
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 3f416479e23c60ec5b4b779cce9ab62c74865ac8..0625bc7ffd07b66b27176fe62ae3061aa7c67df2 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1528,6 +1528,7 @@ public class ServerGamePacketListenerImpl implements ServerGamePacketListener {
this.awaitingTeleportTime = this.tickCount;
this.player.absMoveTo(d0, d1, d2, f, f1);
+ this.player.forceCheckHighPriority(); // Paper
this.player.connection.send(new ClientboundPlayerPositionPacket(d0 - d3, d1 - d4, d2 - d5, f - f2, f1 - f3, set, this.awaitingTeleport));
}
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 8e00747c1a717836d12a43aa48d667bf801167b0..168895dab31a0d5356eb96f2642399a1c99fccab 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -271,8 +271,8 @@ public abstract class PlayerList {
final ChunkPos pos = new ChunkPos(chunkX, chunkZ);
ChunkMap playerChunkMap = worldserver1.getChunkSource().chunkMap;
playerChunkMap.getChunkDistanceManager().addTicketAtLevel(TicketType.LOGIN, pos, 31, pos.toLong());
- worldserver1.getChunkSource().runDistanceManagerUpdates();
- worldserver1.getChunkSource().getChunkAtAsynchronously(chunkX, chunkZ, true, true).thenApply(chunk -> {
+ worldserver1.getChunkSource().markAreaHighPriority(pos, 28, 3);
+ worldserver1.getChunkSource().getChunkAtAsynchronously(chunkX, chunkZ, true, false).thenApply(chunk -> {
ChunkHolder updatingChunk = playerChunkMap.getUpdatingChunkIfPresent(pos.toLong());
if (updatingChunk != null) {
return updatingChunk.getEntityTickingFuture();
@@ -692,6 +692,7 @@ public abstract class PlayerList {
SocketAddress socketaddress = loginlistener.connection.getRemoteAddress();
ServerPlayer entity = new ServerPlayer(this.server, this.server.getLevel(Level.OVERWORLD), gameprofile, new ServerPlayerGameMode(this.server.getLevel(Level.OVERWORLD)));
+ entity.isRealPlayer = true; // Paper
Player player = entity.getBukkitEntity();
PlayerLoginEvent event = new PlayerLoginEvent(player, hostname, ((java.net.InetSocketAddress) socketaddress).getAddress(), ((java.net.InetSocketAddress) loginlistener.connection.getRawAddress()).getAddress());
@@ -898,6 +899,7 @@ public abstract class PlayerList {
// CraftBukkit end
worldserver1.getChunkSource().addRegionTicket(TicketType.POST_TELEPORT, new ChunkPos(location.getBlockX() >> 4, location.getBlockZ() >> 4), 1, entityplayer.getId()); // Paper
+ entityplayer1.forceCheckHighPriority(); // Player
while (avoidSuffocation && !worldserver1.noCollision(entityplayer1) && entityplayer1.getY() < 256.0D) {
entityplayer1.setPos(entityplayer1.getX(), entityplayer1.getY() + 1.0D, entityplayer1.getZ());
}
diff --git a/src/main/java/net/minecraft/world/level/ChunkPos.java b/src/main/java/net/minecraft/world/level/ChunkPos.java
index 7ccf830146c252cff8e22553d293e02d4b53dad8..4a5f318adf5bc2ca1c3fab5d173a99cddd77ab85 100644
--- a/src/main/java/net/minecraft/world/level/ChunkPos.java
+++ b/src/main/java/net/minecraft/world/level/ChunkPos.java
@@ -104,6 +104,7 @@ public class ChunkPos {
return "[" + this.x + ", " + this.z + "]";
}
+ public final BlockPos asPosition() { return getWorldPosition(); } // Paper - OBFHELPER
public BlockPos getWorldPosition() {
return new BlockPos(this.getMinBlockX(), 0, this.getMinBlockZ());
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 4fc44390f432ef13c9952aa22bbb29bc8bf47975..7261e22a71d219efe0949a08c5d3f10747759469 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -2523,6 +2523,10 @@ public class CraftWorld implements World {
return future;
}
+ if (!urgent) {
+ // if not urgent, at least use a slightly boosted priority
+ world.getChunkSource().markHighPriority(new ChunkPos(x, z), 1);
+ }
return this.world.getChunkSource().getChunkAtAsynchronously(x, z, gen, urgent).thenComposeAsync((either) -> {
net.minecraft.world.level.chunk.LevelChunk chunk = (net.minecraft.world.level.chunk.LevelChunk) either.left().orElse(null);
return CompletableFuture.completedFuture(chunk == null ? null : chunk.getBukkitChunk());
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index eb366396820c9b6731469df4198e0884a431a77c..610eabd2e93f9efccee810c3b5a314bc3cc649d8 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -60,6 +60,7 @@ import net.minecraft.server.level.ServerLevel;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.server.network.ServerGamePacketListenerImpl;
import net.minecraft.server.players.UserWhiteListEntry;
+import net.minecraft.util.Mth;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.ExperienceOrb;
import net.minecraft.world.entity.LivingEntity;
@@ -69,6 +70,7 @@ import net.minecraft.world.entity.ai.attributes.Attributes;
import net.minecraft.world.inventory.AbstractContainerMenu;
import net.minecraft.world.item.enchantment.EnchantmentHelper;
import net.minecraft.world.item.enchantment.Enchantments;
+import net.minecraft.world.level.ChunkPos;
import net.minecraft.world.level.GameType;
import net.minecraft.world.level.biome.BiomeManager;
import net.minecraft.world.level.block.entity.SignBlockEntity;
@@ -848,6 +850,14 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
throw new UnsupportedOperationException("Cannot set rotation of players. Consider teleporting instead.");
}
+ // Paper start
+ @Override
+ public java.util.concurrent.CompletableFuture<Boolean> teleportAsync(Location loc, @javax.annotation.Nonnull PlayerTeleportEvent.TeleportCause cause) {
+ ((CraftWorld)loc.getWorld()).getHandle().getChunkSource().markAreaHighPriority(new ChunkPos(Mth.floor(loc.getX()) >> 4, Mth.floor(loc.getZ()) >> 4), 28, 3); // Paper - load area high priority
+ return super.teleportAsync(loc, cause);
+ }
+ // Paper end
+
@Override
public boolean teleport(Location location, PlayerTeleportEvent.TeleportCause cause) {
Preconditions.checkArgument(location != null, "location");
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