From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Tue, 5 May 2020 20:40:53 -0700 Subject: [PATCH] Optimize isOutsideRange to use distance maps Use a distance map to find the players in range quickly diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java index 8104b9be5a8e8d57f6f50475788aec6a762a0f7e..e6883cad6c604673535deacc19463aeeb060199a 100644 --- a/src/main/java/net/minecraft/server/level/ChunkHolder.java +++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java @@ -100,6 +100,18 @@ public class ChunkHolder { } // Paper end + // Paper start - optimise isOutsideOfRange + // cached here to avoid a map lookup + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet playersInMobSpawnRange; + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet playersInChunkTickRange; + + void updateRanges() { + long key = net.minecraft.server.MCUtil.getCoordinateKey(this.pos); + this.playersInMobSpawnRange = this.chunkMap.playerMobSpawnMap.getObjectsInRange(key); + this.playersInChunkTickRange = this.chunkMap.playerChunkTickRangeMap.getObjectsInRange(key); + } + // Paper end - optimise isOutsideOfRange + public ChunkHolder(ChunkPos pos, int level, LevelHeightAccessor world, LevelLightEngine lightingProvider, ChunkHolder.LevelChangeListener levelUpdateListener, ChunkHolder.PlayerProvider playersWatchingChunkProvider) { this.futures = new AtomicReferenceArray(ChunkHolder.CHUNK_STATUSES.size()); this.fullChunkFuture = ChunkHolder.UNLOADED_LEVEL_CHUNK_FUTURE; @@ -121,6 +133,7 @@ public class ChunkHolder { this.setTicketLevel(level); this.changedBlocksPerSection = new ShortSet[world.getSectionsCount()]; this.chunkMap = (ChunkMap)playersWatchingChunkProvider; // Paper + this.updateRanges(); // Paper - optimise isOutsideOfRange } // CraftBukkit start diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java index d2ac486acadd3a1ac829208f9f4594418594f459..19bf44ab6b1f6803eb41208fd07ec0f3dad22c6e 100644 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java @@ -241,6 +241,17 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider return MinecraftServer.getServer().getScaledTrackingDistance(vanilla); } // Paper end - use distance map to optimise tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + // A note about the naming used here: + // Previously, mojang used a "spawn range" of 8 for controlling both ticking and + // mob spawn range. However, spigot makes the spawn range configurable by + // checking if the chunk is in the tick range (8) and the spawn range + // obviously this means a spawn range > 8 cannot be implemented + + // these maps are named after spigot's uses + public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerMobSpawnMap; // this map is absent from updateMaps since it's controlled at the start of the chunkproviderserver tick + public final com.destroystokyo.paper.util.misc.PlayerAreaMap playerChunkTickRangeMap; + // Paper end - optimise PlayerChunkMap#isOutsideRange void addPlayerToDistanceMaps(ServerPlayer player) { int chunkX = MCUtil.getChunkCoordinate(player.getX()); @@ -254,6 +265,12 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider trackMap.add(player, chunkX, chunkZ, Math.min(trackRange, this.getEffectiveViewDistance())); } // Paper end - use distance map to optimise entity tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + this.playerChunkTickRangeMap.update(player, chunkX, chunkZ, DistanceManager.MOB_SPAWN_RANGE); + // Paper end - optimise PlayerChunkMap#isOutsideRange + // Paper start - optimise PlayerChunkMap#isOutsideRange + this.playerChunkTickRangeMap.add(player, chunkX, chunkZ, DistanceManager.MOB_SPAWN_RANGE); + // Paper end - optimise PlayerChunkMap#isOutsideRange // Paper start - no-tick view distance int effectiveTickViewDistance = this.getEffectiveViewDistance(); int effectiveNoTickViewDistance = Math.max(this.getEffectiveNoTickViewDistance(), effectiveTickViewDistance); @@ -275,6 +292,10 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider this.playerEntityTrackerTrackMaps[i].remove(player); } // Paper end - use distance map to optimise tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + this.playerMobSpawnMap.remove(player); + this.playerChunkTickRangeMap.remove(player); + // Paper end - optimise PlayerChunkMap#isOutsideRange // Paper start - no-tick view distance this.playerViewDistanceBroadcastMap.remove(player); this.playerViewDistanceTickMap.remove(player); @@ -294,6 +315,9 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider trackMap.update(player, chunkX, chunkZ, Math.min(trackRange, this.getEffectiveViewDistance())); } // Paper end - use distance map to optimise entity tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + this.playerChunkTickRangeMap.update(player, chunkX, chunkZ, DistanceManager.MOB_SPAWN_RANGE); + // Paper end - optimise PlayerChunkMap#isOutsideRange // Paper start - no-tick view distance int effectiveTickViewDistance = this.getEffectiveViewDistance(); int effectiveNoTickViewDistance = Math.max(this.getEffectiveNoTickViewDistance(), effectiveTickViewDistance); @@ -340,7 +364,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider this.mainThreadMailbox = this.queueSorter.getProcessor(mailbox, false); this.mailboxLight = this.queueSorter.getProcessor(lightthreaded, false);// Paper this.lightEngine = new ThreadedLevelLightEngine(chunkProvider, this, this.level.dimensionType().hasSkyLight(), threadedmailbox1, this.queueSorter.getProcessor(threadedmailbox1, false)); - this.distanceManager = new ChunkMap.ChunkDistanceManager(executor, mainThreadExecutor); + this.distanceManager = new ChunkMap.ChunkDistanceManager(executor, mainThreadExecutor); this.distanceManager.chunkMap = this; // Paper this.overworldDataStorage = persistentStateManagerFactory; this.poiManager = new PoiManager(new File(this.storageFolder, "poi"), dataFixer, dsync, world); this.setViewDistance(viewDistance); @@ -384,6 +408,38 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider this.playerEntityTrackerTrackMaps[ordinal] = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets); } // Paper end - use distance map to optimise entity tracker + // Paper start - optimise PlayerChunkMap#isOutsideRange + this.playerChunkTickRangeMap = 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 newState) -> { + ChunkHolder playerChunk = ChunkMap.this.getUpdatingChunkIfPresent(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInChunkTickRange = newState; + } + }, + (ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + ChunkHolder playerChunk = ChunkMap.this.getUpdatingChunkIfPresent(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInChunkTickRange = newState; + } + }); + this.playerMobSpawnMap = 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 newState) -> { + ChunkHolder playerChunk = ChunkMap.this.getUpdatingChunkIfPresent(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInMobSpawnRange = newState; + } + }, + (ServerPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + ChunkHolder playerChunk = ChunkMap.this.getUpdatingChunkIfPresent(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInMobSpawnRange = newState; + } + }); + // Paper end - optimise PlayerChunkMap#isOutsideRange // Paper start - no-tick view distance this.setNoTickViewDistance(this.level.paperConfig.noTickViewDistance); this.playerViewDistanceTickMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets, @@ -653,6 +709,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } else { if (holder != null) { holder.setTicketLevel(level); + holder.updateRanges(); // Paper - optimise isOutsideOfRange } if (holder != null) { @@ -1474,29 +1531,50 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider return this.isOutsideOfRange(chunkPos, false); } - boolean isOutsideOfRange(ChunkPos chunkcoordintpair, boolean reducedRange) { - int chunkRange = level.spigotConfig.mobSpawnRange; - chunkRange = (chunkRange > level.spigotConfig.viewDistance) ? (byte) level.spigotConfig.viewDistance : chunkRange; - chunkRange = (chunkRange > 8) ? 8 : chunkRange; - - final int finalChunkRange = chunkRange; // Paper for lambda below - //double blockRange = (reducedRange) ? Math.pow(chunkRange << 4, 2) : 16384.0D; // Paper - use from event - // Spigot end - long i = chunkcoordintpair.toLong(); + // Paper start - optimise isOutsideOfRange + final boolean isOutsideOfRange(ChunkPos chunkcoordintpair, boolean reducedRange) { + return this.isOutsideOfRange(this.getUpdatingChunkIfPresent(chunkcoordintpair.toLong()), chunkcoordintpair, reducedRange); + } + final boolean isOutsideOfRange(ChunkHolder playerchunk, ChunkPos chunkcoordintpair, boolean reducedRange) { + // this function is so hot that removing the map lookup call can have an order of magnitude impact on its performance + // tested and confirmed via System.nanoTime() + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet playersInRange = reducedRange ? playerchunk.playersInMobSpawnRange : playerchunk.playersInChunkTickRange; + if (playersInRange == null) { + return true; + } + Object[] backingSet = playersInRange.getBackingSet(); - return !this.distanceManager.hasPlayersNearby(i) ? true : this.playerMap.getPlayers(i).noneMatch((entityplayer) -> { - // Paper start - add PlayerNaturallySpawnCreaturesEvent - com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event; - double blockRange = 16384.0D; - if (reducedRange) { - event = entityplayer.playerNaturallySpawnedEvent; - if (event == null || event.isCancelled()) return false; - blockRange = (double) ((event.getSpawnRadius() << 4) * (event.getSpawnRadius() << 4)); + if (reducedRange) { + for (int i = 0, len = backingSet.length; i < len; ++i) { + Object raw = backingSet[i]; + if (!(raw instanceof ServerPlayer)) { + continue; + } + ServerPlayer player = (ServerPlayer) raw; + // don't check spectator and whatnot, already handled by mob spawn map update + if (player.lastEntitySpawnRadiusSquared > euclideanDistanceSquared(chunkcoordintpair, player)) { + return false; // in range + } } - // Paper end - return !entityplayer.isSpectator() && ChunkMap.euclideanDistanceSquared(chunkcoordintpair, (Entity) entityplayer) < blockRange; // Spigot - }); + } else { + final double range = (DistanceManager.MOB_SPAWN_RANGE * 16) * (DistanceManager.MOB_SPAWN_RANGE * 16); + // before spigot, mob spawn range was actually mob spawn range + tick range, but it was split + for (int i = 0, len = backingSet.length; i < len; ++i) { + Object raw = backingSet[i]; + if (!(raw instanceof ServerPlayer)) { + continue; + } + ServerPlayer player = (ServerPlayer) raw; + // don't check spectator and whatnot, already handled by mob spawn map update + if (range > euclideanDistanceSquared(chunkcoordintpair, player)) { + return false; // in range + } + } + } + // no players in range + return true; } + // Paper end - optimise isOutsideOfRange private boolean skipPlayer(ServerPlayer player) { return player.isSpectator() && !this.level.getGameRules().getBoolean(GameRules.RULE_SPECTATORSGENERATECHUNKS); diff --git a/src/main/java/net/minecraft/server/level/DistanceManager.java b/src/main/java/net/minecraft/server/level/DistanceManager.java index b49d380ef088aed3204ec71abc437c348ef004fa..577b391dcba1db712c1e2c83296e1c87b3e34ab2 100644 --- a/src/main/java/net/minecraft/server/level/DistanceManager.java +++ b/src/main/java/net/minecraft/server/level/DistanceManager.java @@ -45,7 +45,7 @@ public abstract class DistanceManager { final Long2ObjectMap> playersPerChunk = new Long2ObjectOpenHashMap(); public final Long2ObjectOpenHashMap>> tickets = new Long2ObjectOpenHashMap(); private final DistanceManager.ChunkTicketTracker ticketTracker = new DistanceManager.ChunkTicketTracker(); - private final DistanceManager.FixedPlayerDistanceChunkTracker naturalSpawnChunkCounter = new DistanceManager.FixedPlayerDistanceChunkTracker(8); + public static final int MOB_SPAWN_RANGE = 8; // private final ChunkMapDistance.b f = new ChunkMapDistance.b(8); // Paper - no longer used private final DistanceManager.PlayerTicketTracker playerTicketManager = new DistanceManager.PlayerTicketTracker(33); // Paper start use a queue, but still keep unique requirement public final java.util.Queue pendingChunkUpdates = new java.util.ArrayDeque() { @@ -64,6 +64,8 @@ public abstract class DistanceManager { final Executor mainThreadExecutor; private long ticketTickCounter; + ChunkMap chunkMap; // Paper + protected DistanceManager(Executor workerExecutor, Executor mainThreadExecutor) { Objects.requireNonNull(mainThreadExecutor); ProcessorHandle mailbox = ProcessorHandle.of("player ticket throttler", mainThreadExecutor::execute); @@ -108,7 +110,7 @@ public abstract class DistanceManager { protected abstract ChunkHolder updateChunkScheduling(long pos, int level, @Nullable ChunkHolder holder, int k); public boolean runAllUpdates(ChunkMap playerchunkmap) { - this.naturalSpawnChunkCounter.runAllUpdates(); + //this.f.a(); // Paper - no longer used this.playerTicketManager.runAllUpdates(); int i = Integer.MAX_VALUE - this.ticketTracker.runDistanceUpdates(Integer.MAX_VALUE); boolean flag = i != 0; @@ -244,7 +246,7 @@ public abstract class DistanceManager { ((ObjectSet) this.playersPerChunk.computeIfAbsent(i, (j) -> { return new ObjectOpenHashSet(); })).add(player); - this.naturalSpawnChunkCounter.update(i, 0, true); + //this.f.update(i, 0, true); // Paper - no longer used this.playerTicketManager.update(i, 0, true); } @@ -256,7 +258,7 @@ public abstract class DistanceManager { if (objectset != null) objectset.remove(player); // Paper - some state corruption happens here, don't crash, clean up gracefully. if (objectset == null || objectset.isEmpty()) { // Paper this.playersPerChunk.remove(i); - this.naturalSpawnChunkCounter.update(i, Integer.MAX_VALUE, false); + //this.f.update(i, Integer.MAX_VALUE, false); // Paper - no longer used this.playerTicketManager.update(i, Integer.MAX_VALUE, false); } @@ -280,13 +282,17 @@ public abstract class DistanceManager { } public int getNaturalSpawnChunkCount() { - this.naturalSpawnChunkCounter.runAllUpdates(); - return this.naturalSpawnChunkCounter.chunks.size(); + // Paper start - use distance map to implement + // note: this is the spawn chunk count + return this.chunkMap.playerChunkTickRangeMap.size(); + // Paper end - use distance map to implement } public boolean hasPlayersNearby(long i) { - this.naturalSpawnChunkCounter.runAllUpdates(); - return this.naturalSpawnChunkCounter.chunks.containsKey(i); + // Paper start - use distance map to implement + // note: this is the is spawn chunk method + return this.chunkMap.playerChunkTickRangeMap.getObjectsInRange(i) != null; + // Paper end - use distance map to implement } public String getDebugStatus() { diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java index ba10da7899143e8a8c16bc1413fd8de4e5645f46..147f6fd5174a2c489dfb7ea2ce2d2dc7dacfb89d 100644 --- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java +++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java @@ -730,6 +730,37 @@ public class ServerChunkCache extends ChunkSource { boolean flag1 = this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING) && !this.level.players().isEmpty(); // CraftBukkit if (!flag) { + // Paper start - optimize isOutisdeRange + ChunkMap playerChunkMap = this.chunkMap; + for (ServerPlayer player : this.level.players) { + if (!player.affectsSpawning || player.isSpectator()) { + playerChunkMap.playerMobSpawnMap.remove(player); + continue; + } + + int viewDistance = this.chunkMap.getEffectiveViewDistance(); + + // copied and modified from isOutisdeRange + int chunkRange = level.spigotConfig.mobSpawnRange; + chunkRange = (chunkRange > viewDistance) ? (byte)viewDistance : chunkRange; + chunkRange = (chunkRange > DistanceManager.MOB_SPAWN_RANGE) ? DistanceManager.MOB_SPAWN_RANGE : chunkRange; + + com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent event = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(player.getBukkitEntity(), (byte)chunkRange); + event.callEvent(); + if (event.isCancelled() || event.getSpawnRadius() < 0 || playerChunkMap.playerChunkTickRangeMap.getLastViewDistance(player) == -1) { + playerChunkMap.playerMobSpawnMap.remove(player); + continue; + } + + int range = Math.min(event.getSpawnRadius(), 32); // limit to max view distance + int chunkX = net.minecraft.server.MCUtil.getChunkCoordinate(player.getX()); + int chunkZ = net.minecraft.server.MCUtil.getChunkCoordinate(player.getZ()); + + playerChunkMap.playerMobSpawnMap.addOrUpdate(player, chunkX, chunkZ, range); + player.lastEntitySpawnRadiusSquared = (double)((range << 4) * (range << 4)); // used in isOutsideRange + player.playerNaturallySpawnedEvent = event; + } + // Paper end - optimize isOutisdeRange this.level.getProfiler().push("pollingChunks"); int k = this.level.getGameRules().getInt(GameRules.RULE_RANDOMTICKING); boolean flag2 = level.ticksPerAnimalSpawns != 0L && worlddata.getGameTime() % level.ticksPerAnimalSpawns == 0L; // CraftBukkit @@ -759,15 +790,7 @@ public class ServerChunkCache extends ChunkSource { this.level.getProfiler().pop(); //List list = Lists.newArrayList(this.playerChunkMap.f()); // Paper //Collections.shuffle(list); // Paper - //Paper start - call player naturally spawn event - int chunkRange = level.spigotConfig.mobSpawnRange; - chunkRange = (chunkRange > level.spigotConfig.viewDistance) ? (byte) level.spigotConfig.viewDistance : chunkRange; - chunkRange = Math.min(chunkRange, 8); - for (ServerPlayer entityPlayer : this.level.players()) { - entityPlayer.playerNaturallySpawnedEvent = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(entityPlayer.getBukkitEntity(), (byte) chunkRange); - entityPlayer.playerNaturallySpawnedEvent.callEvent(); - }; - // Paper end + // Paper - moved up this.level.timings.chunkTicks.startTiming(); // Paper final int[] chunksTicked = {0}; this.chunkMap.forEachVisibleChunk((playerchunk) -> { // Paper - safe iterator incase chunk loads, also no wrapping Optional optional = ((Either) playerchunk.getTickingChunkFuture().getNow(ChunkHolder.UNLOADED_LEVEL_CHUNK)).left(); @@ -782,9 +805,9 @@ public class ServerChunkCache extends ChunkSource { this.level.getProfiler().pop(); ChunkPos chunkcoordintpair = chunk.getPos(); - if (this.level.isPositionEntityTicking(chunkcoordintpair) && !this.chunkMap.noPlayersCloseForSpawning(chunkcoordintpair)) { + if (this.level.isPositionEntityTicking(chunkcoordintpair) && !this.chunkMap.isOutsideOfRange(playerchunk, chunkcoordintpair, false)) { // Paper - optimise isOutsideOfRange chunk.setInhabitedTime(chunk.getInhabitedTime() + j); - if (flag1 && (this.spawnEnemies || this.spawnFriendlies) && this.level.getWorldBorder().isWithinBounds(chunk.getPos()) && !this.chunkMap.isOutsideOfRange(chunkcoordintpair, true)) { // Spigot + if (flag1 && (this.spawnEnemies || this.spawnFriendlies) && this.level.getWorldBorder().isWithinBounds(chunk.getPos()) && !this.chunkMap.isOutsideOfRange(playerchunk, chunkcoordintpair, true)) { // Spigot // Paper - optimise isOutsideOfRange NaturalSpawner.spawnForChunk(this.level, chunk, spawnercreature_d, this.spawnFriendlies, this.spawnEnemies, flag2); if (chunksTicked[0]++ % 10 == 0) this.level.getServer().midTickLoadChunks(); // Paper } diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java index 8f67cbf2b66adfcebff1c6caef5b0996bb7c24ae..eefe6f77d616768d3cfc93b7e2030d59b49b9e21 100644 --- a/src/main/java/net/minecraft/server/level/ServerPlayer.java +++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java @@ -249,6 +249,7 @@ public class ServerPlayer extends Player { // CraftBukkit end public PlayerNaturallySpawnCreaturesEvent playerNaturallySpawnedEvent; // Paper + public double lastEntitySpawnRadiusSquared; // Paper - optimise isOutsideRange, this field is in blocks public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet cachedSingleHashSet; // Paper boolean needsChunkCenterUpdate; // Paper - no-tick view distance