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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 18ae2e2b339d357fbe0f6f2b18bc14c0dfe4c222..3b7ba9c755c82a6f086d5542d32b3567c0f98b99 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); // Paper - 1->4
}
static void dumpChunkInfo(Set<ChunkHolder> seenChunks, ChunkHolder chunkHolder, int x, int z, int indent, int maxDepth) {
@@ -129,6 +129,31 @@ 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()));
+ // Paper start
+ PaperFileIOThread.LOGGER.log(Level.ERROR, indentStr + "Chunk Holder Priority - " + chunkHolder.queueLevel);
+
+ 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.isOrAfter(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);
+ }
+ }
+ // Paper end
}
}
diff --git a/src/main/java/net/minecraft/server/MCUtil.java b/src/main/java/net/minecraft/server/MCUtil.java
index 87c9a5c1b43f6010898d72136b5eb9973299b723..d517ae863e9cba4505d4c698c2edbd1457e877e9 100644
--- a/src/main/java/net/minecraft/server/MCUtil.java
+++ b/src/main/java/net/minecraft/server/MCUtil.java
@@ -671,6 +671,7 @@ public final class MCUtil {
chunkData.addProperty("x", playerChunk.pos.x);
chunkData.addProperty("z", playerChunk.pos.z);
chunkData.addProperty("ticket-level", playerChunk.getTicketLevel());
+ chunkData.addProperty("priority", playerChunk.queueLevel); // Paper - priority
chunkData.addProperty("state", ChunkHolder.getFullChunkStatus(playerChunk.getTicketLevel()).toString());
chunkData.addProperty("queued-for-unload", chunkMap.toDrop.contains(playerChunk.pos.longKey));
chunkData.addProperty("status", status == null ? "unloaded" : status.toString());
diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java
index c2401b2ff0547335ddbbeb05c07b74552c246fc9..377993f325400a9bc77f5fbc77d9ec50f5d76638 100644
--- a/src/main/java/net/minecraft/server/level/ChunkHolder.java
+++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java
@@ -60,7 +60,7 @@ public class ChunkHolder {
private final DebugBuffer<ChunkHolder.ChunkSaveDebug> chunkToSaveHistory;
public int oldTicketLevel;
private int ticketLevel;
- private int queueLevel;
+ public volatile int queueLevel; // Paper - private->public, make volatile since this is concurrently accessed
public final ChunkPos pos; // Paper - package->public
private boolean hasChangedSections;
private final ShortSet[] changedBlocksPerSection;
@@ -75,6 +75,7 @@ public class ChunkHolder {
boolean isUpdateQueued = false; // Paper
private final ChunkMap chunkMap; // Paper
+ public ServerLevel getWorld() { return chunkMap.level; } // Paper
// Paper start - no-tick view distance
public final LevelChunk getSendingChunk() {
// it's important that we use getChunkAtIfLoadedImmediately to mirror the chunk sending logic used
@@ -100,6 +101,134 @@ public class ChunkHolder {
}
// Paper end
+ // 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 it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap<Integer> neighborPriorities = new it.unimi.dsi.fastutil.longs.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.isOrAfter(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.isOrAfter(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 (queueLevel != 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 = net.minecraft.server.MCUtil.fastFloor(blockX) >> 4;
+ int cz = net.minecraft.server.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());
+ }
+
+ public static ChunkStatus getNextStatus(ChunkStatus status) {
+ if (status == ChunkStatus.FULL) {
+ return status;
+ }
+ return CHUNK_STATUSES.get(status.getIndex() + 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);
+ }
+
+ @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 " + queueLevel +
+ '}';
+ }
+ // Paper end
+
// Paper start - optimise isOutsideOfRange
// cached here to avoid a map lookup
com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> playersInMobSpawnRange;
@@ -486,7 +615,7 @@ 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(() -> {
@@ -539,13 +668,14 @@ public class ChunkHolder {
this.fullChunkFuture = chunkStorage.prepareAccessibleChunk(this);
this.scheduleFullChunkPromotion(chunkStorage, this.fullChunkFuture, executor, ChunkHolder.FullChunkStatus.BORDER);
// Paper start - cache ticking ready status
- this.fullChunkFuture.thenAccept(either -> {
+ ensureMain(this.fullChunkFuture).thenAccept(either -> { // Paper - ensure main
final Optional<LevelChunk> left = either.left();
if (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);
}
});
this.updateChunkToSave(this.fullChunkFuture, "full");
@@ -569,7 +699,7 @@ public class ChunkHolder {
this.tickingChunkFuture = chunkStorage.prepareTickingChunk(this);
this.scheduleFullChunkPromotion(chunkStorage, this.tickingChunkFuture, executor, ChunkHolder.FullChunkStatus.TICKING);
// Paper start - cache ticking ready status
- this.tickingChunkFuture.thenAccept(either -> {
+ ensureMain(this.tickingChunkFuture).thenAccept(either -> { // Paper - ensure main
either.ifLeft(chunk -> {
// note: Here is a very good place to add callbacks to logic waiting on this.
ChunkHolder.this.isTickingReady = true;
@@ -599,7 +729,7 @@ public class ChunkHolder {
this.entityTickingChunkFuture = chunkStorage.prepareEntityTickingChunk(this.pos);
this.scheduleFullChunkPromotion(chunkStorage, this.entityTickingChunkFuture, executor, ChunkHolder.FullChunkStatus.ENTITY_TICKING);
// Paper start - cache ticking ready status
- this.entityTickingChunkFuture.thenAccept(either -> {
+ ensureMain(this.entityTickingChunkFuture).thenAccept(either -> { // Paper ensureMain
either.ifLeft(chunk -> {
ChunkHolder.this.isEntityTickingReady = true;
});
@@ -617,12 +747,30 @@ public class ChunkHolder {
this.demoteFullChunk(chunkStorage, playerchunk_state1);
}
- this.onLevelChange.onLevelChange(this.pos, this::getQueueLevel, this.ticketLevel, this::setQueueLevel);
+ //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 (this.queueLevel > 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 (this.queueLevel != priority) {
+ this.onLevelChange.onLevelChange(this.pos, () -> this.queueLevel, priority, p -> this.queueLevel = p); // 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(() -> {
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index ee37c952a91cac91145d3c2418a817633e04f573..c544529908dd5af63a829f54985eefc236e290db 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -148,6 +148,7 @@ 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;
@@ -186,6 +187,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
@Override
public void execute(Runnable runnable) {
+ org.spigotmc.AsyncCatcher.catchOp("Callback Executor execute");
if (this.queue == null) {
this.queue = new java.util.ArrayDeque<>();
}
@@ -194,6 +196,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
@Override
public void run() {
+ org.spigotmc.AsyncCatcher.catchOp("Callback Executor run");
if (this.queue == null) {
return;
}
@@ -350,6 +353,15 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
this.level = world;
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(executor, "worldgen");
Objects.requireNonNull(mainThreadExecutor);
@@ -445,6 +457,7 @@ 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;
}
@@ -463,7 +476,14 @@ 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
- });
+ // Paper start
+ ChunkMap.this.level.getChunkSource().clearPriorityTickets(chunkPos);
+ },
+ (player, prevPos, newPos) -> {
+ player.lastHighPriorityChecked = -1; // reset and recheck
+ checkHighPriorityChunks(player);
+ });
+ // Paper end
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,
@@ -481,6 +501,116 @@ 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(it.unimi.dsi.fastutil.longs.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;
+ it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap priorities = new it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap();
+
+ int viewDistance = getEffectiveNoTickViewDistance();
+ net.minecraft.core.BlockPos.MutableBlockPos pos = new net.minecraft.core.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
+
// Paper start
public void updatePlayerMobTypeMap(Entity entity) {
if (!this.level.paperConfig.perPlayerMobSpawns) {
@@ -639,6 +769,7 @@ 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) {
@@ -657,6 +788,14 @@ 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);
}
@@ -1043,14 +1182,24 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
};
CompletableFuture<CompoundTag> chunkSaveFuture = this.level.asyncChunkTaskManager.getChunkSaveFuture(pos.x, pos.z);
+ // Paper start
+ ChunkHolder playerChunk = getUpdatingChunkIfPresent(pos.toLong());
+ int chunkPriority = playerChunk != null ? playerChunk.queueLevel : 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;
+ // Paper end
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); // Paper
} 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); // Paper
}
+ this.level.asyncChunkTaskManager.raisePriority(pos.x, pos.z, priority); // Paper
return ret;
// Paper end
}
@@ -1182,7 +1331,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
long i = playerchunk.getPos().toLong();
Objects.requireNonNull(playerchunk);
- 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 d94241bcca4f2fd5e464a860bd356af504dc68b7..e82dcc43ae03c31e9e3ec31dbcfecfde64bd407a 100644
--- a/src/main/java/net/minecraft/server/level/DistanceManager.java
+++ b/src/main/java/net/minecraft/server/level/DistanceManager.java
@@ -98,6 +98,7 @@ public abstract class DistanceManager {
}
private static int getTicketLevelAt(SortedArraySet<Ticket<?>> arraysetsorted) {
+ org.spigotmc.AsyncCatcher.catchOp("ChunkMapDistance::getLowestTicketLevel"); // Paper
return !arraysetsorted.isEmpty() ? ((Ticket) arraysetsorted.first()).getTicketLevel() : ChunkMap.MAX_CHUNK_DISTANCE + 1;
}
@@ -111,6 +112,7 @@ public abstract class DistanceManager {
public boolean runAllUpdates(ChunkMap playerchunkmap) {
//this.f.a(); // Paper - no longer used
+ org.spigotmc.AsyncCatcher.catchOp("DistanceManagerTick"); // Paper
this.playerTicketManager.runAllUpdates();
int i = Integer.MAX_VALUE - this.ticketTracker.runDistanceUpdates(Integer.MAX_VALUE);
boolean flag = i != 0;
@@ -121,11 +123,13 @@ public abstract class DistanceManager {
// Paper start
if (!this.pendingChunkUpdates.isEmpty()) {
+ this.pollingPendingChunkUpdates = true; try { // Paper - Chunk priority
while(!this.pendingChunkUpdates.isEmpty()) {
ChunkHolder remove = this.pendingChunkUpdates.remove();
remove.isUpdateQueued = false;
remove.updateFutures(playerchunkmap, this.mainThreadExecutor);
}
+ } finally { this.pollingPendingChunkUpdates = false; } // Paper - Chunk priority
// Paper end
return true;
} else {
@@ -161,8 +165,10 @@ public abstract class DistanceManager {
return flag;
}
}
+ boolean pollingPendingChunkUpdates = false; // Paper - Chunk priority
boolean addTicket(long i, Ticket<?> ticket) { // CraftBukkit - void -> boolean
+ org.spigotmc.AsyncCatcher.catchOp("ChunkMapDistance::addTicket"); // Paper
SortedArraySet<Ticket<?>> arraysetsorted = this.getTickets(i);
int j = DistanceManager.getTicketLevelAt(arraysetsorted);
Ticket<?> ticket1 = (Ticket) arraysetsorted.addOrGet(ticket); // CraftBukkit - decompile error
@@ -176,7 +182,9 @@ public abstract class DistanceManager {
}
boolean removeTicket(long i, Ticket<?> ticket) { // CraftBukkit - void -> boolean
+ org.spigotmc.AsyncCatcher.catchOp("ChunkMapDistance::removeTicket"); // Paper
SortedArraySet<Ticket<?>> arraysetsorted = this.getTickets(i);
+ int oldLevel = getTicketLevelAt(arraysetsorted); // Paper
boolean removed = false; // CraftBukkit
if (arraysetsorted.remove(ticket)) {
@@ -208,7 +216,12 @@ public abstract class DistanceManager {
this.tickets.remove(i);
}
- this.ticketTracker.update(i, DistanceManager.getTicketLevelAt(arraysetsorted), false);
+ // Paper start - Chunk priority
+ int newLevel = getTicketLevelAt(arraysetsorted);
+ if (newLevel > oldLevel) {
+ this.ticketTracker.update(i, newLevel, false);
+ }
+ // Paper end
return removed; // CraftBukkit
}
@@ -250,6 +263,136 @@ public abstract class DistanceManager {
});
}
+ // Paper start - Chunk priority
+ 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;
+ net.minecraft.server.MCUtil.getSpiralOutChunks(center.getWorldPosition(), radius).forEach(coords -> {
+ addPriorityTicket(coords, TicketType.PRIORITY, finalPriority);
+ });
+ delayDistanceManagerTick = false;
+ chunkMap.level.getChunkSource().runDistanceManagerUpdates();
+ }
+
+ public void clearAreaPriorityTickets(ChunkPos center, int radius) {
+ delayDistanceManagerTick = true;
+ net.minecraft.server.MCUtil.getSpiralOutChunks(center.getWorldPosition(), 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) {
+ org.spigotmc.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);
+ this.ticketsToRelease.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.setCreatedTick(this.ticketTickCounter);
+ ticket.priority = Math.max(ticket.priority, priority);
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ public int getChunkPriority(ChunkPos coords) {
+ org.spigotmc.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) {
+ org.spigotmc.AsyncCatcher.catchOp("ChunkMapDistance::clearPriority");
+ this.removeTicket(coords.toLong(), new Ticket<ChunkPos>(TicketType.PRIORITY, PRIORITY_TICKET_LEVEL, coords));
+ }
+
+ public void clearUrgent(ChunkPos coords) {
+ org.spigotmc.AsyncCatcher.catchOp("ChunkMapDistance::clearUrgent");
+ this.removeTicket(coords.toLong(), new Ticket<ChunkPos>(TicketType.URGENT, PRIORITY_TICKET_LEVEL, coords));
+ }
+ // Paper end
+
protected void updateChunkForced(ChunkPos pos, boolean forced) {
Ticket<ChunkPos> ticket = new Ticket<>(TicketType.FORCED, 31, pos);
@@ -516,41 +659,68 @@ 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 = this.viewDistance;
+ this.viewDistance = watchDistance;
+ // Paper end
while (objectiterator.hasNext()) {
it.unimi.dsi.fastutil.longs.Long2ByteMap.Entry it_unimi_dsi_fastutil_longs_long2bytemap_entry = (it.unimi.dsi.fastutil.longs.Long2ByteMap.Entry) objectiterator.next();
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.viewDistance = watchDistance; // 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 - reuse variable
+ Ticket<?> ticket = new Ticket<>(TicketType.PLAYER, 33, coords); // Paper - no-tick view distance
if (withinViewDistance) {
+ scheduleChunkLoad(pos, net.minecraft.server.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(() -> {
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 {
+ }} else { // Paper
DistanceManager.this.ticketThrottlerReleaser.tell(ChunkTaskPriorityQueueSorter.release(() -> {
}, pos, false));
}
});
}, pos, () -> {
- return distance;
+ return Math.min(ChunkMap.MAX_CHUNK_DISTANCE, priority); // Paper - Chunk priority
}));
+ }); // Paper
} else {
DistanceManager.this.ticketThrottlerReleaser.tell(ChunkTaskPriorityQueueSorter.release(() -> {
DistanceManager.this.mainThreadExecutor.execute(() -> {
DistanceManager.this.removeTicket(pos, ticket);
+ DistanceManager.this.clearPriorityTickets(coords); // Paper - Chunk priority
});
}, pos, true));
}
@@ -592,5 +762,100 @@ public abstract class DistanceManager {
private boolean haveTicketFor(int distance) {
return distance <= this.viewDistance - 2;
}
+
+ // Paper start - smart scheduling of player tickets
+ private boolean isChunkInRange(long i) {
+ return this.haveTicketFor(this.getLevel(i));
+ }
+ public void scheduleChunkLoad(long i, long startTick, int initialDistance, java.util.function.Consumer<Integer> task) {
+ long elapsed = net.minecraft.server.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();
+
+ net.minecraft.core.BlockPos blockPos = chunkPos.getWorldPosition();
+
+ boolean isFront = false;
+ net.minecraft.core.BlockPos.MutableBlockPos pos = new net.minecraft.core.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 = net.minecraft.server.MCUtil.distanceSq(pos, blockPos);
+
+ pos.setValues(player.getX(), 0, player.getZ());
+ double center = net.minecraft.server.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 = net.minecraft.server.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.isOrAfter(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));
+ net.minecraft.server.MCUtil.scheduleTask(taskDelay, () -> scheduleChunkLoad(i, startTick, initialDistance, task), "Player Ticket Delayer");
+ }
+ }
+ // Paper end
}
}
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
index e46ccbca0cfa63dd5143080375193a95a9249d60..80cda453dc9dd8267eff8a6445d5cd63a13a64c3 100644
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
@@ -446,6 +446,26 @@ 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 - async chunk io
@Nullable
@@ -486,6 +506,8 @@ public class ServerChunkCache extends ChunkSource {
Objects.requireNonNull(completablefuture);
if (!completablefuture.isDone()) { // Paper
// Paper start - async chunk io/loading
+ ChunkPos pair = new ChunkPos(x1, z1); // Paper - Chunk priority
+ this.distanceManager.markUrgent(pair); // Paper - Chunk priority
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
@@ -494,6 +516,8 @@ public class ServerChunkCache extends ChunkSource {
chunkproviderserver_a.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 - Chunk priority
+ this.distanceManager.clearUrgent(pair); // Paper - Chunk priority
} // Paper
ichunkaccess = (ChunkAccess) ((Either) completablefuture.join()).map((ichunkaccess1) -> {
return ichunkaccess1;
@@ -567,10 +591,12 @@ 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 - Chunk priority
if (this.chunkAbsent(playerchunk, l)) {
ProfilerFiller gameprofilerfiller = this.level.getProfiler();
gameprofilerfiller.push("chunkLoad");
+ distanceManager.delayDistanceManagerTick = false; // Paper - Chunk priority - ensure this is never false
this.runDistanceManagerUpdates();
playerchunk = this.getVisibleChunkIfPresent(k);
gameprofilerfiller.pop();
@@ -579,8 +605,13 @@ public class ServerChunkCache extends ChunkSource {
}
}
}
-
- return this.chunkAbsent(playerchunk, l) ? ChunkHolder.UNLOADED_CHUNK_FUTURE : playerchunk.getOrScheduleFuture(chunkstatus, this.chunkMap);
+ // Paper start - Chunk priority
+ 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) {
@@ -632,6 +663,7 @@ public class ServerChunkCache extends ChunkSource {
}
public boolean runDistanceManagerUpdates() {
+ if (distanceManager.delayDistanceManagerTick) return false; // Paper - Chunk priority
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 d59e707f28a5f04545208ad33d122fc433b85933..1dd21dc364eef75667d56db33c5df8e006453a08 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -183,6 +183,14 @@ public class ServerPlayer extends Player {
private int lastRecordedArmor = Integer.MIN_VALUE;
private int lastRecordedLevel = Integer.MIN_VALUE;
private int lastRecordedExperience = Integer.MIN_VALUE;
+ // Paper start - Chunk priority
+ public long lastHighPriorityChecked;
+ public void forceCheckHighPriority() {
+ lastHighPriorityChecked = -1;
+ getLevel().getChunkSource().chunkMap.checkHighPriorityChunks(this);
+ }
+ public boolean isRealPlayer;
+ // Paper end
private float lastSentHealth = -1.0E8F;
private int lastSentFood = -99999999;
private boolean lastFoodSaturationZero = true;
@@ -324,6 +332,21 @@ public class ServerPlayer extends Player {
this.maxHealthCache = this.getMaxHealth();
this.cachedSingleMobDistanceMap = new com.destroystokyo.paper.util.PooledHashSets.PooledObjectLinkedOpenHashSet<>(this); // Paper
}
+ // Paper start - Chunk priority
+ public BlockPos getPointInFront(double inFront) {
+ double rads = Math.toRadians(net.minecraft.server.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(net.minecraft.server.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
@@ -645,6 +668,7 @@ public class ServerPlayer extends Player {
if (valid && !this.isSpectator() || !this.touchingUnloadedChunk()) { // 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 - Chunk priority
for (int i = 0; i < this.getInventory().getContainerSize(); ++i) {
ItemStack itemstack = this.getInventory().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 a7aa7a9038d4812a9d1e4e72c4dbbbe10df15820..df06e9b3e082fc94213dc1769d6cb1a1f756f62d 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<?>> {
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 long delayUnloadBy; // Paper
+ public int priority; // Paper - Chunk priority
protected Ticket(TicketType<T> type, int level, T argument) {
this.type = type;
diff --git a/src/main/java/net/minecraft/server/level/TicketType.java b/src/main/java/net/minecraft/server/level/TicketType.java
index 8770fe0db46b01e8b608637df4f1a669a3f4cdde..3c1698ba0d3bc412ab957777d9b5211dbc555208 100644
--- a/src/main/java/net/minecraft/server/level/TicketType.java
+++ b/src/main/java/net/minecraft/server/level/TicketType.java
@@ -9,6 +9,8 @@ import net.minecraft.world.level.ChunkPos;
public class TicketType<T> {
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
private final String name;
private final Comparator<T> comparator;
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index fecb2a6b8674ca110d6af539396873e9dcdc0edb..6476d2a478b85116061a13f7ef2a5fec2ade4a04 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1566,6 +1566,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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, flag));
}
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 66735bbc2528c5812c9df14ef7cd91cb69d903b2..8ebbbecaebea8435232a2ccd9ad1062eb1dbbd6c 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -283,8 +283,8 @@ public abstract class PlayerList {
net.minecraft.server.level.ChunkMap playerChunkMap = worldserver1.getChunkSource().chunkMap;
net.minecraft.server.level.DistanceManager distanceManager = playerChunkMap.distanceManager;
distanceManager.addTicketAtLevel(net.minecraft.server.level.TicketType.LOGIN, pos, 31, pos.toLong());
- worldserver1.getChunkSource().runDistanceManagerUpdates();
- worldserver1.getChunkSource().getChunkAtAsynchronously(chunkX, chunkZ, true, true).thenApply(chunk -> {
+ worldserver1.getChunkSource().markAreaHighPriority(pos, 28, 3); // Paper - Chunk priority
+ worldserver1.getChunkSource().getChunkAtAsynchronously(chunkX, chunkZ, true, false).thenApply(chunk -> { // Paper - Chunk priority
net.minecraft.server.level.ChunkHolder updatingChunk = playerChunkMap.getUpdatingChunkIfPresent(pos.toLong());
if (updatingChunk != null) {
return updatingChunk.getEntityTickingFuture();
@@ -697,6 +697,7 @@ public abstract class PlayerList {
SocketAddress socketaddress = loginlistener.connection.getRemoteAddress();
ServerPlayer entity = new ServerPlayer(this.server, this.server.getLevel(Level.OVERWORLD), gameprofile);
+ entity.isRealPlayer = true; // Paper - Chunk priority
Player player = entity.getBukkitEntity();
PlayerLoginEvent event = new PlayerLoginEvent(player, hostname, ((java.net.InetSocketAddress) socketaddress).getAddress(), ((java.net.InetSocketAddress) loginlistener.connection.getRawAddress()).getAddress());
@@ -885,6 +886,7 @@ public abstract class PlayerList {
// CraftBukkit end
worldserver1.getChunkSource().addRegionTicket(net.minecraft.server.level.TicketType.POST_TELEPORT, new net.minecraft.world.level.ChunkPos(location.getBlockX() >> 4, location.getBlockZ() >> 4), 1, entityplayer.getId()); // Paper
+ entityplayer1.forceCheckHighPriority(); // Player - Chunk priority
while (avoidSuffocation && !worldserver1.noCollision(entityplayer1) && entityplayer1.getY() < (double) worldserver1.getMaxBuildHeight()) {
entityplayer1.setPos(entityplayer1.getX(), entityplayer1.getY() + 1.0D, entityplayer1.getZ());
}
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index b410001403e4a984e1ea7f5fdb3adc866631e80f..3eaf72f49d8e520c6f3d2fea2818864018b41732 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -223,7 +223,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
private Vec3 position;
private BlockPos blockPosition;
private Vec3 deltaMovement;
- private float yRot;
+ public float yRot; // Paper - private->public
private float xRot;
public float yRotO;
public float xRotO;
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index f72471ac82907a0d5112598b3289689495285944..6e1f8323d028790d1f55d51edb3214d0161a0072 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -2558,6 +2558,12 @@ public class CraftWorld implements World {
return future;
}
+ // Paper start - Chunk priority
+ if (!urgent) {
+ // If not urgent, at least use a slightly boosted priority
+ world.getChunkSource().markHighPriority(new ChunkPos(x, z), 1);
+ }
+ // Paper end
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);
if (chunk != null) addTicket(x, z); // Paper
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 5bab49aa7f4a99dc6387fcf57bc39b16f912e6ab..443dcc97f8056df408b8abab6e71a6f5467c6aaf 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -889,6 +889,16 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
throw new UnsupportedOperationException("Cannot set rotation of players. Consider teleporting instead.");
}
+ // Paper start - Chunk priority
+ @Override
+ public java.util.concurrent.CompletableFuture<Boolean> teleportAsync(Location loc, @javax.annotation.Nonnull PlayerTeleportEvent.TeleportCause cause) {
+ ((CraftWorld)loc.getWorld()).getHandle().getChunkSource().markAreaHighPriority(
+ new net.minecraft.world.level.ChunkPos(net.minecraft.util.Mth.floor(loc.getX()) >> 4,
+ net.minecraft.util.Mth.floor(loc.getZ()) >> 4), 28, 3); // 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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