From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Tue, 5 May 2020 20:18:05 -0700 Subject: [PATCH] Use distance map to optimise entity tracker Use the distance map to find candidate players for tracking. diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java index 8d12a6da0f0679fd14c2a498f9645bd04b2d8ed7..290a231deb203eb46cb91eb23c28d8e9d49b0f34 100644 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java @@ -147,6 +147,23 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider // Paper start - distance maps private final com.destroystokyo.paper.util.misc.PooledLinkedHashSets pooledLinkedPlayerHashSets = new com.destroystokyo.paper.util.misc.PooledLinkedHashSets<>(); + // Paper start - use distance map to optimise tracker + public static boolean isLegacyTrackingEntity(Entity entity) { + return entity.isLegacyTrackingEntity; + } + + // inlined EnumMap, TrackingRange.TrackingRangeType + static final org.spigotmc.TrackingRange.TrackingRangeType[] TRACKING_RANGE_TYPES = org.spigotmc.TrackingRange.TrackingRangeType.values(); + public final com.destroystokyo.paper.util.misc.PlayerAreaMap[] playerEntityTrackerTrackMaps; + final int[] entityTrackerTrackRanges; + public final int getEntityTrackerRange(final int ordinal) { + return this.entityTrackerTrackRanges[ordinal]; + } + + private int convertSpigotRangeToVanilla(final int vanilla) { + return net.minecraft.server.MinecraftServer.getServer().getScaledTrackingDistance(vanilla); + } + // Paper end - use distance map to optimise tracker void addPlayerToDistanceMaps(ServerPlayer player) { int chunkX = io.papermc.paper.util.MCUtil.getChunkCoordinate(player.getX()); @@ -154,6 +171,14 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider // Note: players need to be explicitly added to distance maps before they can be updated this.nearbyPlayers.addPlayer(player); this.level.playerChunkLoader.addPlayer(player); // Paper - replace chunk loader + // Paper start - use distance map to optimise entity tracker + for (int i = 0, len = TRACKING_RANGE_TYPES.length; i < len; ++i) { + com.destroystokyo.paper.util.misc.PlayerAreaMap trackMap = this.playerEntityTrackerTrackMaps[i]; + int trackRange = this.entityTrackerTrackRanges[i]; + + trackMap.add(player, chunkX, chunkZ, Math.min(trackRange, io.papermc.paper.chunk.system.ChunkSystem.getSendViewDistance(player))); + } + // Paper end - use distance map to optimise entity tracker } void removePlayerFromDistanceMaps(ServerPlayer player) { @@ -162,6 +187,11 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider // Note: players need to be explicitly added to distance maps before they can be updated this.nearbyPlayers.removePlayer(player); this.level.playerChunkLoader.removePlayer(player); // Paper - replace chunk loader + // Paper start - use distance map to optimise tracker + for (int i = 0, len = TRACKING_RANGE_TYPES.length; i < len; ++i) { + this.playerEntityTrackerTrackMaps[i].remove(player); + } + // Paper end - use distance map to optimise tracker } void updateMaps(ServerPlayer player) { @@ -170,6 +200,14 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider // Note: players need to be explicitly added to distance maps before they can be updated this.nearbyPlayers.tickPlayer(player); this.level.playerChunkLoader.updatePlayer(player); // Paper - replace chunk loader + // Paper start - use distance map to optimise entity tracker + for (int i = 0, len = TRACKING_RANGE_TYPES.length; i < len; ++i) { + com.destroystokyo.paper.util.misc.PlayerAreaMap trackMap = this.playerEntityTrackerTrackMaps[i]; + int trackRange = this.entityTrackerTrackRanges[i]; + + trackMap.update(player, chunkX, chunkZ, Math.min(trackRange, io.papermc.paper.chunk.system.ChunkSystem.getSendViewDistance(player))); + } + // Paper end - use distance map to optimise entity tracker } // Paper end // Paper start @@ -257,6 +295,48 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider this.regionManagers.add(this.dataRegionManager); this.nearbyPlayers = new io.papermc.paper.util.player.NearbyPlayers(this.level); // Paper end + // Paper start - use distance map to optimise entity tracker + this.playerEntityTrackerTrackMaps = new com.destroystokyo.paper.util.misc.PlayerAreaMap[TRACKING_RANGE_TYPES.length]; + this.entityTrackerTrackRanges = new int[TRACKING_RANGE_TYPES.length]; + + org.spigotmc.SpigotWorldConfig spigotWorldConfig = this.level.spigotConfig; + + for (int ordinal = 0, len = TRACKING_RANGE_TYPES.length; ordinal < len; ++ordinal) { + org.spigotmc.TrackingRange.TrackingRangeType trackingRangeType = TRACKING_RANGE_TYPES[ordinal]; + int configuredSpigotValue; + switch (trackingRangeType) { + case PLAYER: + configuredSpigotValue = spigotWorldConfig.playerTrackingRange; + break; + case ANIMAL: + configuredSpigotValue = spigotWorldConfig.animalTrackingRange; + break; + case MONSTER: + configuredSpigotValue = spigotWorldConfig.monsterTrackingRange; + break; + case MISC: + configuredSpigotValue = spigotWorldConfig.miscTrackingRange; + break; + case OTHER: + configuredSpigotValue = spigotWorldConfig.otherTrackingRange; + break; + case ENDERDRAGON: + configuredSpigotValue = EntityType.ENDER_DRAGON.clientTrackingRange() * 16; + break; + case DISPLAY: + configuredSpigotValue = spigotWorldConfig.displayTrackingRange; + break; + default: + throw new IllegalStateException("Missing case for enum " + trackingRangeType); + } + configuredSpigotValue = convertSpigotRangeToVanilla(configuredSpigotValue); + + int trackRange = (configuredSpigotValue >>> 4) + ((configuredSpigotValue & 15) != 0 ? 1 : 0); + this.entityTrackerTrackRanges[ordinal] = trackRange; + + this.playerEntityTrackerTrackMaps[ordinal] = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets); + } + // Paper end - use distance map to optimise entity tracker } // Paper start @@ -930,17 +1010,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider } public void move(ServerPlayer player) { - ObjectIterator objectiterator = this.entityMap.values().iterator(); - - while (objectiterator.hasNext()) { - ChunkMap.TrackedEntity playerchunkmap_entitytracker = (ChunkMap.TrackedEntity) objectiterator.next(); - - if (playerchunkmap_entitytracker.entity == player) { - playerchunkmap_entitytracker.updatePlayers(this.level.players()); - } else { - playerchunkmap_entitytracker.updatePlayer(player); - } - } + // Paper - delay this logic for the entity tracker tick, no need to duplicate it SectionPos sectionposition = player.getLastSectionPos(); SectionPos sectionposition1 = SectionPos.of((EntityAccess) player); @@ -1017,7 +1087,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider entity.tracker = playerchunkmap_entitytracker; // Paper - Fast access to tracker this.entityMap.put(entity.getId(), playerchunkmap_entitytracker); - playerchunkmap_entitytracker.updatePlayers(this.level.players()); + playerchunkmap_entitytracker.updatePlayers(entity.getPlayersInTrackRange()); // Paper - don't search all players if (entity instanceof ServerPlayer) { ServerPlayer entityplayer = (ServerPlayer) entity; @@ -1061,9 +1131,37 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider entity.tracker = null; // Paper - We're no longer tracked } - protected void tick() { - // Paper - replaced by PlayerChunkLoader + // Paper start - optimised tracker + private final void processTrackQueue() { + this.level.timings.tracker1.startTiming(); + try { + for (TrackedEntity tracker : this.entityMap.values()) { + // update tracker entry + tracker.updatePlayers(tracker.entity.getPlayersInTrackRange()); + } + } finally { + this.level.timings.tracker1.stopTiming(); + } + + + this.level.timings.tracker2.startTiming(); + try { + for (TrackedEntity tracker : this.entityMap.values()) { + tracker.serverEntity.sendChanges(); + } + } finally { + this.level.timings.tracker2.stopTiming(); + } + } + // Paper end - optimised tracker + protected void tick() { + // Paper start - optimized tracker + if (true) { + this.processTrackQueue(); + return; + } + // Paper end - optimized tracker List list = Lists.newArrayList(); List list1 = this.level.players(); ObjectIterator objectiterator = this.entityMap.values().iterator(); @@ -1213,6 +1311,42 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider this.lastSectionPos = SectionPos.of((EntityAccess) entity); } + // Paper start - use distance map to optimise tracker + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet lastTrackerCandidates; + + final void updatePlayers(com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet newTrackerCandidates) { + com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet oldTrackerCandidates = this.lastTrackerCandidates; + this.lastTrackerCandidates = newTrackerCandidates; + + if (newTrackerCandidates != null) { + Object[] rawData = newTrackerCandidates.getBackingSet(); + for (int i = 0, len = rawData.length; i < len; ++i) { + Object raw = rawData[i]; + if (!(raw instanceof ServerPlayer)) { + continue; + } + ServerPlayer player = (ServerPlayer)raw; + this.updatePlayer(player); + } + } + + if (oldTrackerCandidates == newTrackerCandidates) { + // this is likely the case. + // means there has been no range changes, so we can just use the above for tracking. + return; + } + + // stuff could have been removed, so we need to check the trackedPlayers set + // for players that were removed + + for (ServerPlayerConnection conn : this.seenBy.toArray(new ServerPlayerConnection[0])) { // avoid CME + if (newTrackerCandidates == null || !newTrackerCandidates.contains(conn.getPlayer())) { + this.updatePlayer(conn.getPlayer()); + } + } + } + // Paper end - use distance map to optimise tracker + public boolean equals(Object object) { return object instanceof ChunkMap.TrackedEntity ? ((ChunkMap.TrackedEntity) object).entity.getId() == this.entity.getId() : false; } diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java index b3d50a16748a295aa952c22e90708ea33a7af992..1ad820b4954f11d2bab92708eb0c44739317603e 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -56,6 +56,7 @@ import net.minecraft.network.syncher.EntityDataSerializers; import net.minecraft.network.syncher.SynchedEntityData; import net.minecraft.resources.ResourceKey; import net.minecraft.resources.ResourceLocation; +import io.papermc.paper.util.MCUtil; import net.minecraft.server.MinecraftServer; import net.minecraft.server.level.ServerLevel; import net.minecraft.server.level.ServerPlayer; @@ -486,6 +487,38 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S public boolean updatingSectionStatus = false; // Paper end + // Paper start - optimise entity tracking + final org.spigotmc.TrackingRange.TrackingRangeType trackingRangeType = org.spigotmc.TrackingRange.getTrackingRangeType(this); + + public boolean isLegacyTrackingEntity = false; + + public final void setLegacyTrackingEntity(final boolean isLegacyTrackingEntity) { + this.isLegacyTrackingEntity = isLegacyTrackingEntity; + } + + public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet getPlayersInTrackRange() { + // determine highest range of passengers + if (this.passengers.isEmpty()) { + return ((ServerLevel)this.level).getChunkSource().chunkMap.playerEntityTrackerTrackMaps[this.trackingRangeType.ordinal()] + .getObjectsInRange(MCUtil.getCoordinateKey(this)); + } + Iterable passengers = this.getIndirectPassengers(); + net.minecraft.server.level.ChunkMap chunkMap = ((ServerLevel)this.level).getChunkSource().chunkMap; + org.spigotmc.TrackingRange.TrackingRangeType type = this.trackingRangeType; + int range = chunkMap.getEntityTrackerRange(type.ordinal()); + + for (Entity passenger : passengers) { + org.spigotmc.TrackingRange.TrackingRangeType passengerType = passenger.trackingRangeType; + int passengerRange = chunkMap.getEntityTrackerRange(passengerType.ordinal()); + if (passengerRange > range) { + type = passengerType; + range = passengerRange; + } + } + + return chunkMap.playerEntityTrackerTrackMaps[type.ordinal()].getObjectsInRange(MCUtil.getCoordinateKey(this)); + } + // Paper end - optimise entity tracking public Entity(EntityType type, Level world) { this.id = Entity.ENTITY_COUNTER.incrementAndGet(); diff --git a/src/main/java/org/spigotmc/TrackingRange.java b/src/main/java/org/spigotmc/TrackingRange.java index 172d231adecf043f9f06b7f5e0365ae82327998d..ed8378ad022c375b0d18172aeccf65cb026d9d68 100644 --- a/src/main/java/org/spigotmc/TrackingRange.java +++ b/src/main/java/org/spigotmc/TrackingRange.java @@ -55,4 +55,48 @@ public class TrackingRange return config.otherTrackingRange; } } + + // Paper start - optimise entity tracking + // copied from above, TODO check on update + public static TrackingRangeType getTrackingRangeType(Entity entity) + { + if (entity instanceof net.minecraft.world.entity.boss.enderdragon.EnderDragon) return TrackingRangeType.ENDERDRAGON; // Paper - enderdragon is exempt + if ( entity instanceof ServerPlayer ) + { + return TrackingRangeType.PLAYER; + // Paper start - Simplify and set water mobs to animal tracking range + } + switch (entity.activationType) { + case RAIDER: + case MONSTER: + case FLYING_MONSTER: + return TrackingRangeType.MONSTER; + case WATER: + case VILLAGER: + case ANIMAL: + return TrackingRangeType.ANIMAL; + case MISC: + } + if ( entity instanceof ItemFrame || entity instanceof Painting || entity instanceof ItemEntity || entity instanceof ExperienceOrb ) + // Paper end + { + return TrackingRangeType.MISC; + } else if (entity instanceof Display) { + return TrackingRangeType.DISPLAY; + } else + { + return TrackingRangeType.OTHER; + } + } + + public static enum TrackingRangeType { + PLAYER, + ANIMAL, + MONSTER, + MISC, + OTHER, + ENDERDRAGON, + DISPLAY; + } + // Paper end - optimise entity tracking }