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/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java index 11fd6d24ed0612e4df1a0493907178fb9c455d1c..d7023cb0974f6c28a0fb8a0a6e5a6600fe30d3e3 100644 --- a/src/main/java/net/minecraft/server/MinecraftServer.java +++ b/src/main/java/net/minecraft/server/MinecraftServer.java @@ -1718,6 +1718,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop>> 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 - no-tick view distance this.setNoTickViewDistance(this.level.paperConfig.noTickViewDistance); this.playerViewDistanceTickMap = new com.destroystokyo.paper.util.misc.PlayerAreaMap(this.pooledLinkedPlayerHashSets, @@ -1466,17 +1540,7 @@ 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 int i = SectionPos.blockToSectionCoord(player.getBlockX()); int j = SectionPos.blockToSectionCoord(player.getBlockZ()); @@ -1631,7 +1695,7 @@ 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; @@ -1675,7 +1739,37 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider entity.tracker = null; // Paper - We're no longer tracked } + // 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.tick(); + } + } 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(); @@ -1784,23 +1878,31 @@ Sections go from 0..16. Now whenever a section is not empty, it can potentially DebugPackets.sendPoiPacketsForChunk(this.level, chunk.getPos()); List list = Lists.newArrayList(); List list1 = Lists.newArrayList(); - ObjectIterator objectiterator = this.entityMap.values().iterator(); + // Paper start - optimise entity tracker + // use the chunk entity list, not the whole trackedEntities map... + Entity[] entities = chunk.entities.getRawData(); + for (int i = 0, size = chunk.entities.size(); i < size; ++i) { + Entity entity = entities[i]; + if (entity == player) { + continue; + } + ChunkMap.TrackedEntity tracker = this.entityMap.get(entity.getId()); + if (tracker != null) { // dumb plugins... move on... + tracker.updatePlayer(player); + } - while (objectiterator.hasNext()) { - ChunkMap.TrackedEntity playerchunkmap_entitytracker = (ChunkMap.TrackedEntity) objectiterator.next(); - Entity entity = playerchunkmap_entitytracker.entity; + // keep the vanilla logic here - this is REQUIRED or else passengers and their vehicles disappear! + // (and god knows what the leash thing is) - if (entity != player && entity.chunkPosition().equals(chunk.getPos())) { - playerchunkmap_entitytracker.updatePlayer(player); - if (entity instanceof Mob && ((Mob) entity).getLeashHolder() != null) { - list.add(entity); - } + if (entity instanceof Mob && ((Mob)entity).getLeashHolder() != null) { + list.add(entity); + } - if (!entity.getPassengers().isEmpty()) { - list1.add(entity); - } + if (!entity.getPassengers().isEmpty()) { + list1.add(entity); } } + // Paper end - optimise entity tracker Iterator iterator; Entity entity1; @@ -1879,6 +1981,42 @@ Sections go from 0..16. Now whenever a section is not empty, it can potentially this.lastSectionPos = SectionPos.of(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)) { + 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; } @@ -1964,7 +2102,7 @@ Sections go from 0..16. Now whenever a section is not empty, it can potentially int j = entity.getType().clientTrackingRange() * 16; j = org.spigotmc.TrackingRange.getEntityTrackingRange(entity, j); // Paper - if (j > i) { + if (j < i) { // Paper - we need the lowest range thanks to the fact that our tracker doesn't account for passenger logic i = j; } } diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java index 28afe2f238ded241acf77c3272a44068646b9133..6b492b72b177e3c58580561585609b176876acf1 100644 --- a/src/main/java/net/minecraft/server/level/ServerEntity.java +++ b/src/main/java/net/minecraft/server/level/ServerEntity.java @@ -87,6 +87,7 @@ public class ServerEntity { this.wasOnGround = entity.isOnGround(); } + public final void tick() { this.sendChanges(); } // Paper - OBFHELPER public void sendChanges() { List list = this.entity.getPassengers(); diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java index 58b5d3442ac90e15bd35e4d423af44b88ca257dc..1afb2cf4fd5938346ab035fab2af960049b5d7d3 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -50,6 +50,7 @@ import net.minecraft.network.syncher.EntityDataSerializers; import net.minecraft.network.syncher.SynchedEntityData; import net.minecraft.resources.ResourceKey; import net.minecraft.resources.ResourceLocation; +import net.minecraft.server.MCUtil; import net.minecraft.server.MinecraftServer; import net.minecraft.server.level.ServerLevel; import net.minecraft.server.level.ServerPlayer; @@ -343,6 +344,21 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n } // CraftBukkit 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() { + return ((ServerLevel)this.level).getChunkSource().chunkMap.playerEntityTrackerTrackMaps[this.trackingRangeType.ordinal()] + .getObjectsInRange(MCUtil.getCoordinateKey(this)); + } + // Paper end - optimise entity tracking + public Entity(EntityType type, Level world) { this.id = Entity.ENTITY_COUNTER.incrementAndGet(); this.passengers = ImmutableList.of(); diff --git a/src/main/java/org/spigotmc/TrackingRange.java b/src/main/java/org/spigotmc/TrackingRange.java index 24b1dfcf91d36947c87e9e5c2524317f8775ba95..e5bcbfe175a697e04886d04543e1278b7e83a184 100644 --- a/src/main/java/org/spigotmc/TrackingRange.java +++ b/src/main/java/org/spigotmc/TrackingRange.java @@ -24,6 +24,7 @@ public class TrackingRange { return defaultRange; } + if (entity instanceof net.minecraft.world.entity.boss.enderdragon.EnderDragon) return defaultRange; // Paper - enderdragon is exempt SpigotWorldConfig config = entity.level.spigotConfig; if ( entity instanceof ServerPlayer ) { @@ -47,8 +48,48 @@ public class TrackingRange return config.miscTrackingRange; } else { - if (entity instanceof net.minecraft.world.entity.boss.enderdragon.EnderDragon) return ((net.minecraft.server.level.ServerLevel)(entity.getCommandSenderWorld())).getChunkSource().chunkMap.getLoadViewDistance(); // Paper - enderdragon is exempt 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 + { + return TrackingRangeType.OTHER; + } + } + + public static enum TrackingRangeType { + PLAYER, + ANIMAL, + MONSTER, + MISC, + OTHER, + ENDERDRAGON; + } + // Paper end - optimise entity tracking }