Due to some complexity in mojangs complicated chain of juggling whether or not a chunk should be unloaded when the last ticket is removed, many chunks are remaining around in the cache. These chunks are never being targetted for unload because they are vastly out of view distance range and have no reason to be looked at. This is a huge issue for performance because we have to iterate these chunks EVERY TICK... This is what's been leading to high SELF time in Ticking Chunks timings/profiler results. We will now detect these chunks in that iteration, and automatically add it to the unload queue when the chunk is found without any tickets.
130 lines
7 KiB
Diff
130 lines
7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sat, 28 Jul 2018 12:18:27 -0400
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Subject: [PATCH] Ignore Dead Entities in entityList iteration
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A spigot change delays removal of entities from the entity list.
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This causes a change in behavior from Vanilla where getEntities type
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methods will return dead entities that they shouldn't otherwise be doing.
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This will ensure that dead entities are skipped from iteration since
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they shouldn't of been in the list in the first place.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperCommand.java b/src/main/java/com/destroystokyo/paper/PaperCommand.java
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index b839769ceae8932bb121a0b96fde1e7d129a1f63..5acad8e44f024d3ddf5ef4fd320460ac516e0fb8 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperCommand.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperCommand.java
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@@ -179,6 +179,7 @@ public class PaperCommand extends Command {
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Collection<Entity> entities = world.entitiesById.values();
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entities.forEach(e -> {
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MinecraftKey key = e.getMinecraftKey();
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+ if (e.shouldBeRemoved) return; // Paper
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MutablePair<Integer, Map<ChunkCoordIntPair, Integer>> info = list.computeIfAbsent(key, k -> MutablePair.of(0, Maps.newHashMap()));
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ChunkCoordIntPair chunk = new ChunkCoordIntPair(e.getChunkX(), e.getChunkZ());
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diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
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index 4e7f3065694c8811d5c98bcda64ae32b220e0d7a..5453eaae5b165a76b55a085d70081159b8e66770 100644
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--- a/src/main/java/net/minecraft/server/Chunk.java
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+++ b/src/main/java/net/minecraft/server/Chunk.java
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@@ -813,6 +813,7 @@ public class Chunk implements IChunkAccess {
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while (iterator.hasNext()) {
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Entity entity1 = (Entity) iterator.next();
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+ if (entity1.shouldBeRemoved) continue; // Paper
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if (entity1.getBoundingBox().c(axisalignedbb) && entity1 != entity) {
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if (predicate == null || predicate.test(entity1)) {
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@@ -850,6 +851,7 @@ public class Chunk implements IChunkAccess {
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while (iterator.hasNext()) {
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T entity = (T) iterator.next(); // CraftBukkit - decompile error
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+ if (entity.shouldBeRemoved) continue; // Paper
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if ((entitytypes == null || entity.getEntityType() == entitytypes) && entity.getBoundingBox().c(axisalignedbb) && predicate.test(entity)) {
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list.add(entity);
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@@ -871,6 +873,7 @@ public class Chunk implements IChunkAccess {
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while (iterator.hasNext()) {
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T t0 = (T) iterator.next(); // CraftBukkit - decompile error
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+ if (t0.shouldBeRemoved) continue; // Paper
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if (oclass.isInstance(t0) && t0.getBoundingBox().c(axisalignedbb) && (predicate == null || predicate.test(t0))) { // Spigot - instance check
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list.add(t0);
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diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
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index 84d36ea84e25a701af22900af6cd3099adf6cd54..6e87ff52df30f4de8cfb11d1dbfb71211d656831 100644
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--- a/src/main/java/net/minecraft/server/Entity.java
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+++ b/src/main/java/net/minecraft/server/Entity.java
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@@ -195,6 +195,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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protected int numCollisions = 0; // Paper
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public void inactiveTick() { }
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// Spigot end
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+ public boolean shouldBeRemoved; // Paper
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public float getBukkitYaw() {
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return this.yaw;
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diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
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index 426ca12970e0c75ba75eee6c3e3cdbf833730737..3067ab76d94c58fbfd52fac6754bf6d6d7f01d09 100644
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--- a/src/main/java/net/minecraft/server/WorldServer.java
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+++ b/src/main/java/net/minecraft/server/WorldServer.java
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@@ -908,7 +908,7 @@ public class WorldServer extends World {
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while (objectiterator.hasNext()) {
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Entity entity = (Entity) objectiterator.next();
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-
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+ if (entity.shouldBeRemoved) continue; // Paper
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if (entity instanceof EntityInsentient) {
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EntityInsentient entityinsentient = (EntityInsentient) entity;
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@@ -1230,6 +1230,7 @@ public class WorldServer extends World {
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entity.origin = entity.getBukkitEntity().getLocation();
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}
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// Paper end
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+ entity.shouldBeRemoved = false; // Paper - shouldn't be removed after being re-added
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new com.destroystokyo.paper.event.entity.EntityAddToWorldEvent(entity.getBukkitEntity()).callEvent(); // Paper - fire while valid
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}
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@@ -1242,6 +1243,7 @@ public class WorldServer extends World {
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this.removeEntityFromChunk(entity);
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this.entitiesById.remove(entity.getId());
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this.unregisterEntity(entity);
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+ entity.shouldBeRemoved = true; // Paper
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}
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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index cde999c97f5a1ccab0d13f02708992fac3876e67..960e29cb16f1b08f522832700c60d25416585cce 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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@@ -1029,6 +1029,7 @@ public class CraftWorld implements World {
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for (Object o : world.entitiesById.values()) {
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if (o instanceof net.minecraft.server.Entity) {
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net.minecraft.server.Entity mcEnt = (net.minecraft.server.Entity) o;
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+ if (mcEnt.shouldBeRemoved) continue; // Paper
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Entity bukkitEntity = mcEnt.getBukkitEntity();
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// Assuming that bukkitEntity isn't null
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@@ -1048,6 +1049,7 @@ public class CraftWorld implements World {
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for (Object o : world.entitiesById.values()) {
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if (o instanceof net.minecraft.server.Entity) {
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net.minecraft.server.Entity mcEnt = (net.minecraft.server.Entity) o;
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+ if (mcEnt.shouldBeRemoved) continue; // Paper
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Entity bukkitEntity = mcEnt.getBukkitEntity();
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// Assuming that bukkitEntity isn't null
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@@ -1074,6 +1076,7 @@ public class CraftWorld implements World {
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for (Object entity: world.entitiesById.values()) {
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if (entity instanceof net.minecraft.server.Entity) {
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+ if (((net.minecraft.server.Entity) entity).shouldBeRemoved) continue; // Paper
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Entity bukkitEntity = ((net.minecraft.server.Entity) entity).getBukkitEntity();
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if (bukkitEntity == null) {
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@@ -1097,6 +1100,7 @@ public class CraftWorld implements World {
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for (Object entity: world.entitiesById.values()) {
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if (entity instanceof net.minecraft.server.Entity) {
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+ if (((net.minecraft.server.Entity) entity).shouldBeRemoved) continue; // Paper
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Entity bukkitEntity = ((net.minecraft.server.Entity) entity).getBukkitEntity();
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if (bukkitEntity == null) {
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