From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Aikar 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 af40e473521f408aa0e112953c43bdbce164a48b..68860a3b6db2aa50373d71aec9502c18d48ab8b9 100644 --- a/src/main/java/com/destroystokyo/paper/io/chunk/ChunkTaskManager.java +++ b/src/main/java/com/destroystokyo/paper/io/chunk/ChunkTaskManager.java @@ -107,7 +107,7 @@ public final class ChunkTaskManager { } static void dumpChunkInfo(Set 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 seenChunks, ChunkHolder chunkHolder, int x, int z, int indent, int maxDepth) { @@ -128,6 +128,31 @@ public final class ChunkTaskManager { PaperFileIOThread.LOGGER.error(indentStr + "Chunk Status - " + ((chunk == null) ? "null chunk" : chunk.getStatus().toString())); PaperFileIOThread.LOGGER.error(indentStr + "Chunk Ticket Status - " + ChunkHolder.getStatus(chunkHolder.getTicketLevel())); PaperFileIOThread.LOGGER.error(indentStr + "Chunk Holder Status - " + ((holderStatus == null) ? "null" : holderStatus.toString())); + // Paper start + PaperFileIOThread.LOGGER.error(indentStr + "Chunk Holder Priority - " + chunkHolder.queueLevel); + + if (!chunkHolder.neighbors.isEmpty()) { + if (indent >= maxDepth) { + PaperFileIOThread.LOGGER.error(indentStr + "Chunk Neighbors: (Can't show, too deeply nested)"); + return; + } + PaperFileIOThread.LOGGER.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.error(indentStr + " " + nx + "," + nz + " in " + chunkHolder.getWorld().getWorld().getName() + " (CIRCULAR)"); + continue; + } + PaperFileIOThread.LOGGER.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 aebfcd07170109b9cf058df0d4e285b0d95fedb5..90ebe2ecd1566acd22e69a134090eb3bd3a8e485 100644 --- a/src/main/java/net/minecraft/server/MCUtil.java +++ b/src/main/java/net/minecraft/server/MCUtil.java @@ -681,6 +681,7 @@ 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 36a9d52d9af3bc398010c52dc16ab23e53f2702a..ece4cd0de061969d4d2f07560e6cf38e631098b3 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 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; private boolean hasChangedSections; private final ShortSet[] changedBlocksPerSection; @@ -73,6 +73,7 @@ public class ChunkHolder { private boolean resendLight; private CompletableFuture pendingFullStateConfirmation; + public ServerLevel getWorld() { return chunkMap.level; } // Paper boolean isUpdateQueued = false; // Paper private final ChunkMap chunkMap; // Paper @@ -448,12 +449,18 @@ public class ChunkHolder { }); } + // Paper start + private boolean loadCallbackScheduled = false; + private boolean unloadCallbackScheduled = false; + // Paper end + private void demoteFullChunk(ChunkMap playerchunkmap, ChunkHolder.FullChunkStatus playerchunk_state) { this.pendingFullStateConfirmation.cancel(false); playerchunkmap.onFullChunkStatusChange(this.pos, playerchunk_state); } protected void updateFutures(ChunkMap chunkStorage, Executor executor) { + io.papermc.paper.util.TickThread.ensureTickThread("Async ticket level update"); // Paper ChunkStatus chunkstatus = ChunkHolder.getStatus(this.oldTicketLevel); ChunkStatus chunkstatus1 = ChunkHolder.getStatus(this.ticketLevel); boolean flag = this.oldTicketLevel <= ChunkMap.MAX_CHUNK_DISTANCE; @@ -464,9 +471,22 @@ public class ChunkHolder { // 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) -> { + io.papermc.paper.util.TickThread.ensureTickThread("Async full status chunk future completion"); // Paper LevelChunk chunk = (LevelChunk)either.left().orElse(null); - if (chunk != null) { + if (chunk != null && chunk.wasLoadCallbackInvoked() && ChunkHolder.this.ticketLevel > 33) { // Paper - only invoke unload if load was called + // Paper start - only schedule once, now the future is no longer completed as RIGHT if unloaded... + if (ChunkHolder.this.unloadCallbackScheduled) { + return; + } + ChunkHolder.this.unloadCallbackScheduled = true; + // Paper end - only schedule once, now the future is no longer completed as RIGHT if unloaded... chunkStorage.callbackExecutor.execute(() -> { + // Paper start - only schedule once, now the future is no longer completed as RIGHT if unloaded... + ChunkHolder.this.unloadCallbackScheduled = false; + if (ChunkHolder.this.ticketLevel <= 33) { + return; + } + // Paper end - only schedule once, now the future is no longer completed as RIGHT if unloaded... // Minecraft will apply the chunks tick lists to the world once the chunk got loaded, and then store the tick // lists again inside the chunk once the chunk becomes inaccessible and set the chunk's needsSaving flag. // These actions may however happen deferred, so we manually set the needsSaving flag already here. @@ -523,12 +543,14 @@ public class ChunkHolder { this.scheduleFullChunkPromotion(chunkStorage, this.fullChunkFuture, executor, ChunkHolder.FullChunkStatus.BORDER); // Paper start - cache ticking ready status this.fullChunkFuture.thenAccept(either -> { + io.papermc.paper.util.TickThread.ensureTickThread("Async full chunk future completion"); // Paper final Optional 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"); @@ -549,6 +571,7 @@ public class ChunkHolder { this.scheduleFullChunkPromotion(chunkStorage, this.tickingChunkFuture, executor, ChunkHolder.FullChunkStatus.TICKING); // Paper start - cache ticking ready status this.tickingChunkFuture.thenAccept(either -> { + io.papermc.paper.util.TickThread.ensureTickThread("Async full chunk future completion"); // Paper either.ifLeft(chunk -> { // note: Here is a very good place to add callbacks to logic waiting on this. ChunkHolder.this.isTickingReady = true; @@ -584,6 +607,7 @@ public class ChunkHolder { this.scheduleFullChunkPromotion(chunkStorage, this.entityTickingChunkFuture, executor, ChunkHolder.FullChunkStatus.ENTITY_TICKING); // Paper start - cache ticking ready status this.entityTickingChunkFuture.thenAccept(either -> { + io.papermc.paper.util.TickThread.ensureTickThread("Async full chunk future completion"); // Paper either.ifLeft(chunk -> { ChunkHolder.this.isEntityTickingReady = true; // Paper start - entity ticking chunk set @@ -610,16 +634,45 @@ 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 currRequestedPriority = this.requestedPriority; + int priority = getDemandedPriority(); + int newRequestedPriority = this.requestedPriority = priority; + 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); + chunkMap.level.getChunkSource().getLightEngine().queue.changePriority(pos.toLong(), this.queueLevel, priority); // Paper // Restore this in chunk priority later? + } + if (currRequestedPriority != newRequestedPriority) { + 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) -> { + io.papermc.paper.util.TickThread.ensureTickThread("Async full status chunk future completion"); // Paper LevelChunk chunk = (LevelChunk)either.left().orElse(null); - if (chunk != null) { + if (chunk != null && ChunkHolder.this.oldTicketLevel <= 33 && !chunk.wasLoadCallbackInvoked()) { // Paper - ensure ticket level is set to loaded before calling, as now this can complete with ticket level > 33 + // Paper start - only schedule once, now the future is no longer completed as RIGHT if unloaded... + if (ChunkHolder.this.loadCallbackScheduled) { + return; + } + ChunkHolder.this.loadCallbackScheduled = true; + // Paper end - only schedule once, now the future is no longer completed as RIGHT if unloaded... chunkStorage.callbackExecutor.execute(() -> { - chunk.loadCallback(); + ChunkHolder.this.loadCallbackScheduled = false; // Paper - only schedule once, now the future is no longer completed as RIGHT if unloaded... + if (ChunkHolder.this.oldTicketLevel <= 33) chunk.loadCallback(); // Paper " }); } }).exceptionally((throwable) -> { @@ -744,7 +797,134 @@ public class ChunkHolder { }; } - // Paper start + // Paper start - Chunk gen/load priority system + volatile int neighborPriority = -1; + volatile int priorityBoost = 0; + public final java.util.concurrent.ConcurrentHashMap neighbors = new java.util.concurrent.ConcurrentHashMap<>(); + public final it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap neighborPriorities = new it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap<>(); + int requestedPriority = ChunkMap.MAX_CHUNK_DISTANCE + 1; // this priority is possible pending, but is used to ensure needless updates are not queued + + 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) { + if (!Integer.valueOf(priority).equals(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 (this.requestedPriority != 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> getStatusFutureUncheckedMain(ChunkStatus chunkstatus) { + return ensureMain(getFutureIfPresentUnchecked(chunkstatus)); + } + public CompletableFuture ensureMain(CompletableFuture 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 + + '}'; + } public final boolean isEntityTickingReady() { return this.isEntityTickingReady; } diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java index eb74a831fc439c56fe1ac2d4769ebefa1e5759a3..349c311e70758d99ebb4c61ad509a3a975fda04b 100644 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java @@ -134,6 +134,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider public final ServerLevel level; private final ThreadedLevelLightEngine lightEngine; private final BlockableEventLoop mainThreadExecutor; + final java.util.concurrent.Executor mainInvokingExecutor; // Paper public ChunkGenerator generator; private RandomState randomState; public final Supplier overworldDataStorage; @@ -337,6 +338,15 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } this.mainThreadExecutor = mainThreadExecutor; + // Paper start + this.mainInvokingExecutor = (run) -> { + if (MCUtil.isMainThread()) { + run.run(); + } else { + mainThreadExecutor.execute(run); + } + }; + // Paper end ProcessorMailbox threadedmailbox = ProcessorMailbox.create(executor, "worldgen"); Objects.requireNonNull(mainThreadExecutor); @@ -452,6 +462,37 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider }); } + // 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); + } + } + // Paper end + // Paper start public void updatePlayerMobTypeMap(Entity entity) { if (!this.level.paperConfig().entities.spawning.perPlayerMobSpawns) { @@ -562,6 +603,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider List list1 = new ArrayList(); 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) { @@ -580,6 +622,14 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider ChunkStatus chunkstatus = (ChunkStatus) distanceToStatus.apply(j1); CompletableFuture> 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 list1.add(playerchunk); list.add(completablefuture); @@ -937,11 +987,19 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider if (requiredStatus == ChunkStatus.EMPTY) { return this.scheduleChunkLoad(chunkcoordintpair); } else { + // Paper start - revert 1.17 chunk system changes + CompletableFuture> future = holder.getOrScheduleFuture(requiredStatus.getParent(), this); + return future.thenComposeAsync((either) -> { + Optional optional = either.left(); + if (!optional.isPresent()) { + return CompletableFuture.completedFuture(either); + } + // Paper end - revert 1.17 chunk system changes if (requiredStatus == ChunkStatus.LIGHT) { this.distanceManager.addTicket(TicketType.LIGHT, chunkcoordintpair, 33 + ChunkStatus.getDistance(ChunkStatus.LIGHT), chunkcoordintpair); } - Optional optional = ((Either) holder.getOrScheduleFuture(requiredStatus.getParent(), this).getNow(ChunkHolder.UNLOADED_CHUNK)).left(); + // Paper - revert 1.17 chunk system changes if (optional.isPresent() && ((ChunkAccess) optional.get()).getStatus().isOrAfter(requiredStatus)) { CompletableFuture> completablefuture = requiredStatus.load(this.level, this.structureTemplateManager, this.lightEngine, (ichunkaccess) -> { @@ -953,6 +1011,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } else { return this.scheduleChunkGeneration(holder, requiredStatus); } + }, this.mainThreadExecutor).thenComposeAsync(CompletableFuture::completedFuture, this.mainThreadExecutor); // Paper - revert 1.17 chunk system changes } } @@ -992,14 +1051,24 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider }; CompletableFuture chunkSaveFuture = this.level.asyncChunkTaskManager.getChunkSaveFuture(pos.x, pos.z); + // Paper start + ChunkHolder playerChunk = getUpdatingChunkIfPresent(pos.toLong()); + int chunkPriority = playerChunk != null ? playerChunk.requestedPriority : 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 - Async chunk io } @@ -1078,7 +1147,10 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider this.releaseLightTicket(chunkcoordintpair); return CompletableFuture.completedFuture(Either.right(playerchunk_failure)); }); - }, executor); + }, executor).thenComposeAsync((either) -> { // Paper start - force competion on the main thread + return CompletableFuture.completedFuture(either); + }, this.mainThreadExecutor); // use the main executor, we want to ensure only one chunk callback can be completed per runnable execute + // Paper end - force competion on the main thread } protected void releaseLightTicket(ChunkPos pos) { @@ -1162,7 +1234,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider long i = chunkHolder.getPos().toLong(); Objects.requireNonNull(chunkHolder); - mailbox.tell(ChunkTaskPriorityQueueSorter.message(runnable, i, chunkHolder::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 9bc956068df3baabb9f8e02ee74a6397de2bf587..b2df5e18ce5260a9781052db7afb0b9786fb887c 100644 --- a/src/main/java/net/minecraft/server/level/DistanceManager.java +++ b/src/main/java/net/minecraft/server/level/DistanceManager.java @@ -128,6 +128,7 @@ public abstract class DistanceManager { } private static int getTicketLevelAt(SortedArraySet> tickets) { + org.spigotmc.AsyncCatcher.catchOp("ChunkMapDistance::getTicketLevelAt"); // Paper return !tickets.isEmpty() ? ((Ticket) tickets.first()).getTicketLevel() : ChunkMap.MAX_CHUNK_DISTANCE + 1; } @@ -142,6 +143,7 @@ public abstract class DistanceManager { public boolean runAllUpdates(ChunkMap chunkStorage) { //this.f.a(); // Paper - no longer used this.tickingTicketsTracker.runAllUpdates(); + org.spigotmc.AsyncCatcher.catchOp("DistanceManagerTick"); // Paper this.playerTicketManager.runAllUpdates(); int i = Integer.MAX_VALUE - this.ticketTracker.runDistanceUpdates(Integer.MAX_VALUE); boolean flag = i != 0; @@ -152,11 +154,13 @@ 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(chunkStorage, this.mainThreadExecutor); } + } finally { this.pollingPendingChunkUpdates = false; } // Paper - Chunk priority // Paper end return true; } else { @@ -192,8 +196,10 @@ 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> arraysetsorted = this.getTickets(i); int j = DistanceManager.getTicketLevelAt(arraysetsorted); Ticket ticket1 = (Ticket) arraysetsorted.addOrGet(ticket); @@ -207,7 +213,9 @@ public abstract class DistanceManager { } boolean removeTicket(long i, Ticket ticket) { // CraftBukkit - void -> boolean + org.spigotmc.AsyncCatcher.catchOp("ChunkMapDistance::removeTicket"); // Paper SortedArraySet> arraysetsorted = this.getTickets(i); + int oldLevel = getTicketLevelAt(arraysetsorted); // Paper boolean removed = false; // CraftBukkit if (arraysetsorted.remove(ticket)) { @@ -239,7 +247,12 @@ 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 } @@ -289,6 +302,112 @@ 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(TicketType.PRIORITY, PRIORITY_TICKET_LEVEL, coords)); + }); + delayDistanceManagerTick = false; + chunkMap.level.getChunkSource().runDistanceManagerUpdates(); + } + + private boolean addPriorityTicket(ChunkPos coords, TicketType ticketType, int priority) { + org.spigotmc.AsyncCatcher.catchOp("ChunkMapDistance::addPriorityTicket"); + long pair = coords.toLong(); + ChunkHolder chunk = chunkMap.getUpdatingChunkIfPresent(pair); + if ((chunk != null && chunk.isFullChunkReady())) { + return false; + } + + boolean success; + if (!(success = updatePriorityTicket(coords, ticketType, priority))) { + Ticket ticket = new Ticket(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 type, int priority) { + SortedArraySet> 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> 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(TicketType.PRIORITY, PRIORITY_TICKET_LEVEL, coords)); + } + + public void clearUrgent(ChunkPos coords) { + org.spigotmc.AsyncCatcher.catchOp("ChunkMapDistance::clearUrgent"); + this.removeTicket(coords.toLong(), new Ticket(TicketType.URGENT, PRIORITY_TICKET_LEVEL, coords)); + } + // Paper end + protected void updateChunkForced(ChunkPos pos, boolean forced) { Ticket ticket = new Ticket<>(TicketType.FORCED, 31, pos); long i = pos.toLong(); diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java index 585892f19bc0aea89889a358c0407f2975b9efe5..918fda0fbbafa39ce0f421dcaf10f8dcf1e5dabb 100644 --- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java +++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java @@ -590,6 +590,26 @@ public class ServerChunkCache extends ChunkSource { return CompletableFuture.completedFuture(either); }, this.mainThreadProcessor); } + + 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 @@ -630,6 +650,8 @@ 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 @@ -638,6 +660,8 @@ public class ServerChunkCache extends ChunkSource { chunkproviderserver_b.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; @@ -711,10 +735,12 @@ public class ServerChunkCache extends ChunkSource { if (create && !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(); @@ -724,7 +750,13 @@ public class ServerChunkCache extends ChunkSource { } } - return this.chunkAbsent(playerchunk, l) ? ChunkHolder.UNLOADED_CHUNK_FUTURE : playerchunk.getOrScheduleFuture(leastStatus, this.chunkMap); + // Paper start - Chunk priority + CompletableFuture> future = this.chunkAbsent(playerchunk, l) ? ChunkHolder.UNLOADED_CHUNK_FUTURE : playerchunk.getOrScheduleFuture(leastStatus, this.chunkMap); + if (isUrgent) { + future.thenAccept(either -> this.distanceManager.clearUrgent(chunkcoordintpair)); + } + return future; + // Paper end } private boolean chunkAbsent(@Nullable ChunkHolder holder, int maxLevel) { @@ -776,6 +808,7 @@ 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 58c67cc9a4c9c238fae89e165dc6ad01e569476f..315ada5d45e8681a8f0695410201758d8748b7ec 100644 --- a/src/main/java/net/minecraft/server/level/ServerPlayer.java +++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java @@ -192,6 +192,7 @@ public class ServerPlayer extends Player { private int lastRecordedArmor = Integer.MIN_VALUE; private int lastRecordedLevel = Integer.MIN_VALUE; private int lastRecordedExperience = Integer.MIN_VALUE; + public boolean isRealPlayer; // Paper - chunk priority private float lastSentHealth = -1.0E8F; private int lastSentFood = -99999999; private boolean lastFoodSaturationZero = true; @@ -336,6 +337,21 @@ 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 diff --git a/src/main/java/net/minecraft/server/level/ThreadedLevelLightEngine.java b/src/main/java/net/minecraft/server/level/ThreadedLevelLightEngine.java index 5b238e41ffa3e374b52ee955cb39087571c6ffc2..5539f2a7e069cbe98997b734f3b1cd498148f09b 100644 --- a/src/main/java/net/minecraft/server/level/ThreadedLevelLightEngine.java +++ b/src/main/java/net/minecraft/server/level/ThreadedLevelLightEngine.java @@ -26,15 +26,140 @@ import org.slf4j.Logger; public class ThreadedLevelLightEngine extends LevelLightEngine implements AutoCloseable { private static final Logger LOGGER = LogUtils.getLogger(); private final ProcessorMailbox taskMailbox; - private final ObjectList> lightTasks = new ObjectArrayList<>(); - private final ChunkMap chunkMap; + // Paper start + private static final int MAX_PRIORITIES = ChunkMap.MAX_CHUNK_DISTANCE + 2; + + static class ChunkLightQueue { + public boolean shouldFastUpdate; + java.util.ArrayDeque pre = new java.util.ArrayDeque(); + java.util.ArrayDeque post = new java.util.ArrayDeque(); + + ChunkLightQueue(long chunk) {} + } + + static class PendingLightTask { + long chunkId; + IntSupplier priority; + Runnable pre; + Runnable post; + boolean fastUpdate; + + public PendingLightTask(long chunkId, IntSupplier priority, Runnable pre, Runnable post, boolean fastUpdate) { + this.chunkId = chunkId; + this.priority = priority; + this.pre = pre; + this.post = post; + this.fastUpdate = fastUpdate; + } + } + + + // Retain the chunks priority level for queued light tasks + class LightQueue { + private int size = 0; + private final it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap[] buckets = new it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap[MAX_PRIORITIES]; + private final java.util.concurrent.ConcurrentLinkedQueue pendingTasks = new java.util.concurrent.ConcurrentLinkedQueue<>(); + private final java.util.concurrent.ConcurrentLinkedQueue priorityChanges = new java.util.concurrent.ConcurrentLinkedQueue<>(); + + private LightQueue() { + for (int i = 0; i < buckets.length; i++) { + buckets[i] = new it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap<>(); + } + } + + public void changePriority(long pair, int currentPriority, int priority) { + this.priorityChanges.add(() -> { + ChunkLightQueue remove = this.buckets[currentPriority].remove(pair); + if (remove != null) { + ChunkLightQueue existing = this.buckets[Math.max(1, priority)].put(pair, remove); + if (existing != null) { + remove.pre.addAll(existing.pre); + remove.post.addAll(existing.post); + } + } + }); + } + + public final void addChunk(long chunkId, IntSupplier priority, Runnable pre, Runnable post) { + pendingTasks.add(new PendingLightTask(chunkId, priority, pre, post, true)); + tryScheduleUpdate(); + } + + public final void add(long chunkId, IntSupplier priority, ThreadedLevelLightEngine.TaskType type, Runnable run) { + pendingTasks.add(new PendingLightTask(chunkId, priority, type == TaskType.PRE_UPDATE ? run : null, type == TaskType.POST_UPDATE ? run : null, false)); + } + public final void add(PendingLightTask update) { + int priority = update.priority.getAsInt(); + ChunkLightQueue lightQueue = this.buckets[priority].computeIfAbsent(update.chunkId, ChunkLightQueue::new); + + if (update.pre != null) { + this.size++; + lightQueue.pre.add(update.pre); + } + if (update.post != null) { + this.size++; + lightQueue.post.add(update.post); + } + if (update.fastUpdate) { + lightQueue.shouldFastUpdate = true; + } + } + + public final boolean isEmpty() { + return this.size == 0 && this.pendingTasks.isEmpty(); + } + + public final int size() { + return this.size; + } + + public boolean poll(java.util.List pre, java.util.List post) { + PendingLightTask pending; + while ((pending = pendingTasks.poll()) != null) { + add(pending); + } + Runnable run; + while ((run = priorityChanges.poll()) != null) { + run.run(); + } + boolean hasWork = false; + it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap[] buckets = this.buckets; + int priority = 0; + while (priority < MAX_PRIORITIES && !isEmpty()) { + it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap bucket = buckets[priority]; + if (bucket.isEmpty()) { + priority++; + if (hasWork) { + return true; + } else { + continue; + } + } + ChunkLightQueue queue = bucket.removeFirst(); + this.size -= queue.pre.size() + queue.post.size(); + pre.addAll(queue.pre); + post.addAll(queue.post); + queue.pre.clear(); + queue.post.clear(); + hasWork = true; + if (queue.shouldFastUpdate) { + return true; + } + } + return hasWork; + } + } + + final LightQueue queue = new LightQueue(); + // Paper end + private final ChunkMap chunkMap; private final ChunkMap playerChunkMap; // Paper private final ProcessorHandle> sorterMailbox; private volatile int taskPerBatch = 5; private final AtomicBoolean scheduled = new AtomicBoolean(); public ThreadedLevelLightEngine(LightChunkGetter chunkProvider, ChunkMap chunkStorage, boolean hasBlockLight, ProcessorMailbox processor, ProcessorHandle> executor) { super(chunkProvider, true, hasBlockLight); - this.chunkMap = chunkStorage; + this.chunkMap = chunkStorage; this.playerChunkMap = chunkMap; // Paper this.sorterMailbox = executor; this.taskMailbox = processor; } @@ -120,13 +245,9 @@ public class ThreadedLevelLightEngine extends LevelLightEngine implements AutoCl } private void addTask(int x, int z, IntSupplier completedLevelSupplier, ThreadedLevelLightEngine.TaskType stage, Runnable task) { - this.sorterMailbox.tell(ChunkTaskPriorityQueueSorter.message(() -> { - this.lightTasks.add(Pair.of(stage, task)); - if (this.lightTasks.size() >= this.taskPerBatch) { - this.runUpdate(); - } - - }, ChunkPos.asLong(x, z), completedLevelSupplier)); + // Paper start - replace method + this.queue.add(ChunkPos.asLong(x, z), completedLevelSupplier, stage, task); + // Paper end } @Override @@ -154,8 +275,14 @@ public class ThreadedLevelLightEngine extends LevelLightEngine implements AutoCl public CompletableFuture lightChunk(ChunkAccess chunk, boolean excludeBlocks) { ChunkPos chunkPos = chunk.getPos(); - chunk.setLightCorrect(false); - this.addTask(chunkPos.x, chunkPos.z, ThreadedLevelLightEngine.TaskType.PRE_UPDATE, Util.name(() -> { + // Paper start + //ichunkaccess.b(false); // Don't need to disable this + long pair = chunkPos.toLong(); + CompletableFuture future = new CompletableFuture<>(); + IntSupplier prioritySupplier = playerChunkMap.getChunkQueueLevel(pair); + boolean[] skippedPre = {false}; + this.queue.addChunk(pair, prioritySupplier, Util.name(() -> { + // Paper end LevelChunkSection[] levelChunkSections = chunk.getSections(); for(int i = 0; i < chunk.getSectionsCount(); ++i) { @@ -175,51 +302,45 @@ public class ThreadedLevelLightEngine extends LevelLightEngine implements AutoCl }, () -> { return "lightChunk " + chunkPos + " " + excludeBlocks; - })); - return CompletableFuture.supplyAsync(() -> { + // Paper start - merge the 2 together + }), () -> { + this.chunkMap.releaseLightTicket(chunkPos); // Paper - moved from below, we want to call this even when returning early + if (skippedPre[0]) return; // Paper - future's already complete chunk.setLightCorrect(true); super.retainData(chunkPos, false); - this.chunkMap.releaseLightTicket(chunkPos); - return chunk; - }, (runnable) -> { - this.addTask(chunkPos.x, chunkPos.z, ThreadedLevelLightEngine.TaskType.POST_UPDATE, runnable); + //this.chunkMap.releaseLightTicket(chunkPos); // Paper - moved up + future.complete(chunk); }); + return future; + // Paper end } public void tryScheduleUpdate() { - if ((!this.lightTasks.isEmpty() || super.hasLightWork()) && this.scheduled.compareAndSet(false, true)) { + if ((!this.queue.isEmpty() || super.hasLightWork()) && this.scheduled.compareAndSet(false, true)) { // Paper this.taskMailbox.tell(() -> { this.runUpdate(); this.scheduled.set(false); + tryScheduleUpdate(); // Paper - if we still have work to do, do it! }); } } + // Paper start - replace impl + private final java.util.List pre = new java.util.ArrayList<>(); + private final java.util.List post = new java.util.ArrayList<>(); private void runUpdate() { - int i = Math.min(this.lightTasks.size(), this.taskPerBatch); - ObjectListIterator> objectListIterator = this.lightTasks.iterator(); - - int j; - for(j = 0; objectListIterator.hasNext() && j < i; ++j) { - Pair pair = objectListIterator.next(); - if (pair.getFirst() == ThreadedLevelLightEngine.TaskType.PRE_UPDATE) { - pair.getSecond().run(); - } + if (queue.poll(pre, post)) { + pre.forEach(Runnable::run); + pre.clear(); + super.runUpdates(Integer.MAX_VALUE, true, true); + post.forEach(Runnable::run); + post.clear(); + } else { + // might have level updates to go still + super.runUpdates(Integer.MAX_VALUE, true, true); } - - objectListIterator.back(j); - super.runUpdates(Integer.MAX_VALUE, true, true); - - for(int var5 = 0; objectListIterator.hasNext() && var5 < i; ++var5) { - Pair pair2 = objectListIterator.next(); - if (pair2.getFirst() == ThreadedLevelLightEngine.TaskType.POST_UPDATE) { - pair2.getSecond().run(); - } - - objectListIterator.remove(); - } - + // Paper end } public void setTaskPerBatch(int taskBatchSize) { diff --git a/src/main/java/net/minecraft/server/level/Ticket.java b/src/main/java/net/minecraft/server/level/Ticket.java index f1128f0d4a9a0241ac6c9bc18dd13b431c616bb1..2b2b7851d5f68bcdb41d58bcc64740ba58bf1ef4 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 implements Comparable> { public final T key; public long createdTick; public long delayUnloadBy; // Paper + public int priority; // Paper - Chunk priority protected Ticket(TicketType 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 { public static final TicketType FUTURE_AWAIT = create("future_await", Long::compareTo); // Paper public static final TicketType ASYNC_LOAD = create("async_load", Long::compareTo); // Paper + public static final TicketType PRIORITY = create("priority", Comparator.comparingLong(ChunkPos::toLong), 300); // Paper + public static final TicketType URGENT = create("urgent", Comparator.comparingLong(ChunkPos::toLong), 300); // Paper private final String name; private final Comparator comparator; diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java index 0b301b1f164853bfd23300993288a2958824e287..ec48afe87b5d159b5bdbe035e214ea7c9024fadb 100644 --- a/src/main/java/net/minecraft/server/players/PlayerList.java +++ b/src/main/java/net/minecraft/server/players/PlayerList.java @@ -178,6 +178,7 @@ public abstract class PlayerList { } public void placeNewPlayer(Connection connection, ServerPlayer player) { + player.isRealPlayer = true; // Paper - Chunk priority ServerPlayer prev = pendingPlayers.put(player.getUUID(), player);// Paper if (prev != null) { disconnectPendingPlayer(prev); @@ -292,8 +293,8 @@ public abstract class PlayerList { net.minecraft.server.level.ChunkMap playerChunkMap = worldserver1.getChunkSource().chunkMap; net.minecraft.server.level.DistanceManager distanceManager = playerChunkMap.distanceManager; distanceManager.addTicket(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.getEntityTickingChunkFuture(); diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java index 39c34df3b23eed1ca97234e8df64e9ac0a53ff46..f6df40664b07bf958331e3d1e88a239dd12fb96b 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -287,7 +287,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource { private BlockPos blockPosition; private ChunkPos chunkPosition; 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/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java index 797ff36295412ac8429d573e039d870fd85eb569..3591ac3b7823e109e01ebfa54ac70aa4deabd4f6 100644 --- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java +++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java @@ -141,7 +141,7 @@ public class LevelChunk extends ChunkAccess { return NEIGHBOUR_CACHE_RADIUS; } - boolean loadedTicketLevel; + boolean loadedTicketLevel; public final boolean wasLoadCallbackInvoked() { return this.loadedTicketLevel; } // Paper - public accessor private long neighbourChunksLoadedBitset; private final LevelChunk[] loadedNeighbourChunks = new LevelChunk[(NEIGHBOUR_CACHE_RADIUS * 2 + 1) * (NEIGHBOUR_CACHE_RADIUS * 2 + 1)]; @@ -693,6 +693,7 @@ public class LevelChunk extends ChunkAccess { // CraftBukkit start public void loadCallback() { + if (this.loadedTicketLevel) { LOGGER.error("Double calling chunk load!", new Throwable()); } // Paper // Paper start - neighbour cache int chunkX = this.chunkPos.x; int chunkZ = this.chunkPos.z; @@ -747,6 +748,7 @@ public class LevelChunk extends ChunkAccess { } public void unloadCallback() { + if (!this.loadedTicketLevel) { LOGGER.error("Double calling chunk unload!", new Throwable()); } // Paper org.bukkit.Server server = this.level.getCraftServer(); org.bukkit.event.world.ChunkUnloadEvent unloadEvent = new org.bukkit.event.world.ChunkUnloadEvent(this.bukkitChunk, this.isUnsaved()); server.getPluginManager().callEvent(unloadEvent); diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java index daa6f460d6a1006f91ea5fe63ce86625796801f4..f05c909f65240d3a9a71ac620c395d1e6a724fcd 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java @@ -1998,6 +1998,12 @@ public class CraftWorld extends CraftRegionAccessor 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 7d42e60ec26f3617bb23c12f415b13e5913603fc..791889e540f03681e6432305772d30eca907716e 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -1028,6 +1028,16 @@ 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 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");