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/ChunkMapDistance.java b/src/main/java/net/minecraft/server/ChunkMapDistance.java index 32d3887e2542c4ebba4a7498167fbe4b497a71ce..7e57a53ec614a2f7d2672edff9d7c0e0dca42377 100644 --- a/src/main/java/net/minecraft/server/ChunkMapDistance.java +++ b/src/main/java/net/minecraft/server/ChunkMapDistance.java @@ -31,7 +31,7 @@ public abstract class ChunkMapDistance { private final Long2ObjectMap> c = new Long2ObjectOpenHashMap(); public final Long2ObjectOpenHashMap>> tickets = new Long2ObjectOpenHashMap(); private final ChunkMapDistance.a ticketLevelTracker = new ChunkMapDistance.a(); - private final ChunkMapDistance.b f = new ChunkMapDistance.b(8); + public static final int MOB_SPAWN_RANGE = 8; // private final ChunkMapDistance.b f = new ChunkMapDistance.b(8); // Paper - no longer used private final ChunkMapDistance.c g = new ChunkMapDistance.c(33); // Paper start use a queue, but still keep unique requirement public final java.util.Queue pendingChunkUpdates = new java.util.ArrayDeque() { @@ -50,6 +50,8 @@ public abstract class ChunkMapDistance { private final Executor m; private long currentTick; + PlayerChunkMap chunkMap; // Paper + protected ChunkMapDistance(Executor executor, Executor executor1) { executor1.getClass(); Mailbox mailbox = Mailbox.a("player ticket throttler", executor1::execute); @@ -94,7 +96,7 @@ public abstract class ChunkMapDistance { protected abstract PlayerChunk a(long i, int j, @Nullable PlayerChunk playerchunk, int k); public boolean a(PlayerChunkMap playerchunkmap) { - this.f.a(); + //this.f.a(); // Paper - no longer used this.g.a(); int i = Integer.MAX_VALUE - this.ticketLevelTracker.a(Integer.MAX_VALUE); boolean flag = i != 0; @@ -230,7 +232,7 @@ public abstract class ChunkMapDistance { ((ObjectSet) this.c.computeIfAbsent(i, (j) -> { return new ObjectOpenHashSet(); })).add(entityplayer); - this.f.update(i, 0, true); + //this.f.update(i, 0, true); // Paper - no longer used this.g.update(i, 0, true); } @@ -241,7 +243,7 @@ public abstract class ChunkMapDistance { if (objectset != null) objectset.remove(entityplayer); // Paper - some state corruption happens here, don't crash, clean up gracefully. if (objectset == null || objectset.isEmpty()) { // Paper this.c.remove(i); - this.f.update(i, Integer.MAX_VALUE, false); + //this.f.update(i, Integer.MAX_VALUE, false); // Paper - no longer used this.g.update(i, Integer.MAX_VALUE, false); } @@ -265,13 +267,17 @@ public abstract class ChunkMapDistance { } public int b() { - this.f.a(); - return this.f.a.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 d(long i) { - this.f.a(); - return this.f.a.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 c() { diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java index eebd4c50a7324250d3ebe7060739a71af4243f72..a6363b73522f9d27534b6e80f4b3789e84316c49 100644 --- a/src/main/java/net/minecraft/server/ChunkProviderServer.java +++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java @@ -728,6 +728,36 @@ public class ChunkProviderServer extends IChunkProvider { boolean flag1 = this.world.getGameRules().getBoolean(GameRules.DO_MOB_SPAWNING) && !world.getPlayers().isEmpty(); // CraftBukkit if (!flag) { + // Paper start - optimize isOutisdeRange + PlayerChunkMap playerChunkMap = this.playerChunkMap; + for (EntityPlayer player : this.world.players) { + if (!player.affectsSpawning || player.isSpectator()) { + playerChunkMap.playerMobSpawnMap.remove(player); + continue; + } + + int viewDistance = this.playerChunkMap.getEffectiveViewDistance(); + + // copied and modified from isOutisdeRange + int chunkRange = world.spigotConfig.mobSpawnRange; + chunkRange = (chunkRange > viewDistance) ? (byte)viewDistance : chunkRange; + chunkRange = (chunkRange > ChunkMapDistance.MOB_SPAWN_RANGE) ? ChunkMapDistance.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.locX()); + int chunkZ = net.minecraft.server.MCUtil.getChunkCoordinate(player.locZ()); + + playerChunkMap.playerMobSpawnMap.addOrUpdate(player, chunkX, chunkZ, range); + player.lastEntitySpawnRadiusSquared = (double)((range << 4) * (range << 4)); // used in isOutsideRange + } + // Paper end - optimize isOutisdeRange this.world.getMethodProfiler().enter("pollingChunks"); int k = this.world.getGameRules().getInt(GameRules.RANDOM_TICK_SPEED); boolean flag2 = world.ticksPerAnimalSpawns != 0L && worlddata.getTime() % world.ticksPerAnimalSpawns == 0L; // CraftBukkit @@ -757,15 +787,7 @@ public class ChunkProviderServer extends IChunkProvider { this.world.getMethodProfiler().exit(); //List list = Lists.newArrayList(this.playerChunkMap.f()); // Paper //Collections.shuffle(list); // Paper - //Paper start - call player naturally spawn event - int chunkRange = world.spigotConfig.mobSpawnRange; - chunkRange = (chunkRange > world.spigotConfig.viewDistance) ? (byte) world.spigotConfig.viewDistance : chunkRange; - chunkRange = Math.min(chunkRange, 8); - for (EntityPlayer entityPlayer : this.world.getPlayers()) { - entityPlayer.playerNaturallySpawnedEvent = new com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent(entityPlayer.getBukkitEntity(), (byte) chunkRange); - entityPlayer.playerNaturallySpawnedEvent.callEvent(); - }; - // Paper end + // Paper - moved up final int[] chunksTicked = {0}; this.playerChunkMap.forEachVisibleChunk((playerchunk) -> { // Paper - safe iterator incase chunk loads, also no wrapping Optional optional = ((Either) playerchunk.a().getNow(PlayerChunk.UNLOADED_CHUNK)).left(); @@ -781,9 +803,9 @@ public class ChunkProviderServer extends IChunkProvider { Chunk chunk = (Chunk) optional1.get(); ChunkCoordIntPair chunkcoordintpair = playerchunk.i(); - if (!this.playerChunkMap.isOutsideOfRange(chunkcoordintpair)) { + if (!this.playerChunkMap.isOutsideOfRange(playerchunk, chunkcoordintpair, false)) { // Paper - optimise isOutsideOfRange chunk.setInhabitedTime(chunk.getInhabitedTime() + j); - if (flag1 && (this.allowMonsters || this.allowAnimals) && this.world.getWorldBorder().isInBounds(chunk.getPos()) && !this.playerChunkMap.isOutsideOfRange(chunkcoordintpair, true)) { // Spigot + if (flag1 && (this.allowMonsters || this.allowAnimals) && this.world.getWorldBorder().isInBounds(chunk.getPos()) && !this.playerChunkMap.isOutsideOfRange(playerchunk, chunkcoordintpair, true)) { // Spigot // Paper - optimise isOutsideOfRange SpawnerCreature.a(this.world, chunk, spawnercreature_d, this.allowAnimals, this.allowMonsters, flag2); } diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java index 426c4105ba99c364c3d67f1b421e6b1218de9480..9eaf78095415f09073615db80a87b1fd93a126cc 100644 --- a/src/main/java/net/minecraft/server/EntityPlayer.java +++ b/src/main/java/net/minecraft/server/EntityPlayer.java @@ -113,6 +113,8 @@ public class EntityPlayer extends EntityHuman implements ICrafting { public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet cachedSingleHashSet; // Paper + double lastEntitySpawnRadiusSquared; // Paper - optimise isOutsideRange, this field is in blocks + public EntityPlayer(MinecraftServer minecraftserver, WorldServer worldserver, GameProfile gameprofile, PlayerInteractManager playerinteractmanager) { super(worldserver, worldserver.getSpawn(), gameprofile); this.spawnDimension = World.OVERWORLD; diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java index 9cb2ff09da0b8832e58eed4d70741853a25c9011..7f660d3c528f5fb4150e4ee8b29913436f125b06 100644 --- a/src/main/java/net/minecraft/server/PlayerChunk.java +++ b/src/main/java/net/minecraft/server/PlayerChunk.java @@ -43,6 +43,18 @@ public class PlayerChunk { long lastAutoSaveTime; // Paper - incremental autosave long inactiveTimeStart; // Paper - incremental autosave + // 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.location); + this.playersInMobSpawnRange = this.chunkMap.playerMobSpawnMap.getObjectsInRange(key); + this.playersInChunkTickRange = this.chunkMap.playerChunkTickRangeMap.getObjectsInRange(key); + } + // Paper end - optimise isOutsideOfRange + public PlayerChunk(ChunkCoordIntPair chunkcoordintpair, int i, LightEngine lightengine, PlayerChunk.c playerchunk_c, PlayerChunk.d playerchunk_d) { this.statusFutures = new AtomicReferenceArray(PlayerChunk.CHUNK_STATUSES.size()); this.fullChunkFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE; @@ -59,6 +71,7 @@ public class PlayerChunk { this.n = this.oldTicketLevel; this.a(i); this.chunkMap = (PlayerChunkMap)playerchunk_d; // Paper + this.updateRanges(); // Paper - optimise isOutsideOfRange } // Paper start diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java index a7be3f6d2a11c1e1b310f0fcdbe2e485a2113c59..026562c72d7e95345d9369c6d6331cf6cedb8f17 100644 --- a/src/main/java/net/minecraft/server/PlayerChunkMap.java +++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java @@ -159,6 +159,17 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { return MinecraftServer.getServer().applyTrackingRangeScale(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(EntityPlayer player) { int chunkX = MCUtil.getChunkCoordinate(player.locX()); @@ -172,6 +183,9 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { 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.add(player, chunkX, chunkZ, ChunkMapDistance.MOB_SPAWN_RANGE); + // Paper end - optimise PlayerChunkMap#isOutsideRange } void removePlayerFromDistanceMaps(EntityPlayer player) { @@ -180,6 +194,10 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { 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 } void updateMaps(EntityPlayer player) { @@ -194,6 +212,9 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { 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, ChunkMapDistance.MOB_SPAWN_RANGE); + // Paper end - optimise PlayerChunkMap#isOutsideRange } // Paper end @@ -225,7 +246,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { this.mailboxWorldGen = this.p.a(threadedmailbox, false); this.mailboxMain = this.p.a(mailbox, false); this.lightEngine = new LightEngineThreaded(ilightaccess, this, this.world.getDimensionManager().hasSkyLight(), threadedmailbox1, this.p.a(threadedmailbox1, false)); - this.chunkDistanceManager = new PlayerChunkMap.a(executor, iasynctaskhandler); + this.chunkDistanceManager = new PlayerChunkMap.a(executor, iasynctaskhandler); this.chunkDistanceManager.chunkMap = this; // Paper this.l = supplier; this.m = new VillagePlace(new File(this.w, "poi"), datafixer, flag, this.world); // Paper this.setViewDistance(i); @@ -269,6 +290,38 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { 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, + (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + PlayerChunk playerChunk = PlayerChunkMap.this.getUpdatingChunk(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInChunkTickRange = newState; + } + }, + (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + PlayerChunk playerChunk = PlayerChunkMap.this.getUpdatingChunk(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInChunkTickRange = newState; + } + }); + this.playerMobSpawnMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets, + (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + PlayerChunk playerChunk = PlayerChunkMap.this.getUpdatingChunk(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInMobSpawnRange = newState; + } + }, + (EntityPlayer player, int rangeX, int rangeZ, int currPosX, int currPosZ, int prevPosX, int prevPosZ, + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newState) -> { + PlayerChunk playerChunk = PlayerChunkMap.this.getUpdatingChunk(MCUtil.getCoordinateKey(rangeX, rangeZ)); + if (playerChunk != null) { + playerChunk.playersInMobSpawnRange = newState; + } + }); + // Paper end - optimise PlayerChunkMap#isOutsideRange } public void updatePlayerMobTypeMap(Entity entity) { @@ -288,6 +341,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { return entityPlayer.mobCounts[enumCreatureType.ordinal()]; } + private static double getDistanceSquaredFromChunk(ChunkCoordIntPair chunkPos, Entity entity) { return a(chunkPos, entity); } // Paper - OBFHELPER private static double a(ChunkCoordIntPair chunkcoordintpair, Entity entity) { double d0 = (double) (chunkcoordintpair.x * 16 + 8); double d1 = (double) (chunkcoordintpair.z * 16 + 8); @@ -466,6 +520,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { } else { if (playerchunk != null) { playerchunk.a(j); + playerchunk.updateRanges(); // Paper - optimise isOutsideOfRange } if (playerchunk != null) { @@ -1434,30 +1489,53 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d { return isOutsideOfRange(chunkcoordintpair, false); } - boolean isOutsideOfRange(ChunkCoordIntPair chunkcoordintpair, boolean reducedRange) { - int chunkRange = world.spigotConfig.mobSpawnRange; - chunkRange = (chunkRange > world.spigotConfig.viewDistance) ? (byte) world.spigotConfig.viewDistance : chunkRange; - chunkRange = (chunkRange > 8) ? 8 : chunkRange; + // Paper start - optimise isOutsideOfRange + final boolean isOutsideOfRange(ChunkCoordIntPair chunkcoordintpair, boolean reducedRange) { + return this.isOutsideOfRange(this.getUpdatingChunk(chunkcoordintpair.pair()), chunkcoordintpair, reducedRange); + } - 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.pair(); + final boolean isOutsideOfRange(PlayerChunk playerchunk, ChunkCoordIntPair 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; - return !this.chunkDistanceManager.d(i) ? true : this.playerMap.a(i).noneMatch((entityplayer) -> { - // Paper start - - 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 (playersInRange == null) { + return true; + } - return (!entityplayer.isSpectator() && a(chunkcoordintpair, (Entity) entityplayer) < blockRange); // Spigot - // Paper end - }); + Object[] backingSet = playersInRange.getBackingSet(); + + if (reducedRange) { + for (int i = 0, len = backingSet.length; i < len; ++i) { + Object raw = backingSet[i]; + if (!(raw instanceof EntityPlayer)) { + continue; + } + EntityPlayer player = (EntityPlayer) raw; + // don't check spectator and whatnot, already handled by mob spawn map update + if (player.lastEntitySpawnRadiusSquared > getDistanceSquaredFromChunk(chunkcoordintpair, player)) { + return false; // in range + } + } + } else { + final double range = (ChunkMapDistance.MOB_SPAWN_RANGE * 16) * (ChunkMapDistance.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 EntityPlayer)) { + continue; + } + EntityPlayer player = (EntityPlayer) raw; + // don't check spectator and whatnot, already handled by mob spawn map update + if (range > getDistanceSquaredFromChunk(chunkcoordintpair, player)) { + return false; // in range + } + } + } + // no players in range + return true; } + // Paper end - optimise isOutsideOfRange private boolean b(EntityPlayer entityplayer) { return entityplayer.isSpectator() && !this.world.getGameRules().getBoolean(GameRules.SPECTATORS_GENERATE_CHUNKS);