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aabf676721
Paper/patches/server/0758-Optimise-WorldServer-notify.patch
Spottedleaf aabf676721 Prevent unloading worlds with pending player logins 
Logging into an unloaded world isn't going to end well.
This may fix the cases of people seeing errors about regionfiles
being closed, as loading chunks in an unloaded world will cause this
as the regionfile cache is closed but not cleared.
2022-08-26 22:20:27 -07:00

338 Zeilen
19 KiB
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <spottedleaf@spottedleaf.dev>
Date: Thu, 9 Jul 2020 13:34:59 -0700
Subject: [PATCH] Optimise WorldServer#notify
Iterating over all of the navigators in the world is pretty expensive.
Instead, only iterate over navigators in the current region that are
eligible for repathing.
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 97ec72dc383a2637c60cfc988bca2a8a86954ffb..236ba4c1950a3cced590f520b5349eede75fd59b 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -302,15 +302,81 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
public final io.papermc.paper.chunk.SingleThreadChunkRegionManager dataRegionManager;
public static final class DataRegionData implements io.papermc.paper.chunk.SingleThreadChunkRegionManager.RegionData {
+ // Paper start - optimise notify()
+ private io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet<Mob> navigators;
+
+ public io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet<Mob> getNavigators() {
+ return this.navigators;
+ }
+
+ public boolean addToNavigators(final Mob navigator) {
+ if (this.navigators == null) {
+ this.navigators = new io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet<>();
+ }
+ return this.navigators.add(navigator);
+ }
+
+ public boolean removeFromNavigators(final Mob navigator) {
+ if (this.navigators == null) {
+ return false;
+ }
+ return this.navigators.remove(navigator);
+ }
+ // Paper end - optimise notify()
}
public static final class DataRegionSectionData implements io.papermc.paper.chunk.SingleThreadChunkRegionManager.RegionSectionData {
+ // Paper start - optimise notify()
+ private io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet<Mob> navigators;
+
+ public io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet<Mob> getNavigators() {
+ return this.navigators;
+ }
+
+ public boolean addToNavigators(final io.papermc.paper.chunk.SingleThreadChunkRegionManager.RegionSection section, final Mob navigator) {
+ if (this.navigators == null) {
+ this.navigators = new io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet<>();
+ }
+ final boolean ret = this.navigators.add(navigator);
+ if (ret) {
+ final DataRegionData data = (DataRegionData)section.getRegion().regionData;
+ if (!data.addToNavigators(navigator)) {
+ throw new IllegalStateException();
+ }
+ }
+ return ret;
+ }
+
+ public boolean removeFromNavigators(final io.papermc.paper.chunk.SingleThreadChunkRegionManager.RegionSection section, final Mob navigator) {
+ if (this.navigators == null) {
+ return false;
+ }
+ final boolean ret = this.navigators.remove(navigator);
+ if (ret) {
+ final DataRegionData data = (DataRegionData)section.getRegion().regionData;
+ if (!data.removeFromNavigators(navigator)) {
+ throw new IllegalStateException();
+ }
+ }
+ return ret;
+ }
+ // Paper end - optimise notify()
+
@Override
public void removeFromRegion(final io.papermc.paper.chunk.SingleThreadChunkRegionManager.RegionSection section,
final io.papermc.paper.chunk.SingleThreadChunkRegionManager.Region from) {
final DataRegionSectionData sectionData = (DataRegionSectionData)section.sectionData;
final DataRegionData fromData = (DataRegionData)from.regionData;
+ // Paper start - optimise notify()
+ if (sectionData.navigators != null) {
+ for (final Iterator<Mob> iterator = sectionData.navigators.unsafeIterator(io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet.ITERATOR_FLAG_SEE_ADDITIONS); iterator.hasNext();) {
+ if (!fromData.removeFromNavigators(iterator.next())) {
+ throw new IllegalStateException();
+ }
+ }
+ }
+ // Paper end - optimise notify()
}
@Override
@@ -320,6 +386,15 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
final DataRegionSectionData sectionData = (DataRegionSectionData)section.sectionData;
final DataRegionData oldRegionData = oldRegion == null ? null : (DataRegionData)oldRegion.regionData;
final DataRegionData newRegionData = (DataRegionData)newRegion.regionData;
+ // Paper start - optimise notify()
+ if (sectionData.navigators != null) {
+ for (final Iterator<Mob> iterator = sectionData.navigators.unsafeIterator(io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet.ITERATOR_FLAG_SEE_ADDITIONS); iterator.hasNext();) {
+ if (!newRegionData.addToNavigators(iterator.next())) {
+ throw new IllegalStateException();
+ }
+ }
+ }
+ // Paper end - optimise notify()
}
}
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index b0c95b0af6d24b9566b82b2df54eae5108b9b48b..bd64c6d0930565785deb999f43cfaa4eaea53195 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1120,6 +1120,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
public void tickNonPassenger(Entity entity) {
// Paper start - log detailed entity tick information
io.papermc.paper.util.TickThread.ensureTickThread("Cannot tick an entity off-main");
+ if (!entity.isRemoved()) this.entityManager.updateNavigatorsInRegion(entity); // Paper - optimise notify
try {
if (currentlyTickingEntity.get() == null) {
currentlyTickingEntity.lazySet(entity);
@@ -1637,9 +1638,18 @@ public class ServerLevel extends Level implements WorldGenLevel {
if (Shapes.joinIsNotEmpty(voxelshape, voxelshape1, BooleanOp.NOT_SAME)) {
List<PathNavigation> list = new ObjectArrayList();
- Iterator iterator = this.navigatingMobs.iterator();
+ // Paper start - optimise notify()
+ io.papermc.paper.chunk.SingleThreadChunkRegionManager.Region region = this.getChunkSource().chunkMap.dataRegionManager.getRegion(pos.getX() >> 4, pos.getZ() >> 4);
+ if (region == null) {
+ return;
+ }
+ io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet<Mob> navigatorsFromRegion = ((ChunkMap.DataRegionData)region.regionData).getNavigators();
+ if (navigatorsFromRegion == null) {
+ return;
+ }
+ io.papermc.paper.util.maplist.IteratorSafeOrderedReferenceSet.Iterator<Mob> iterator = navigatorsFromRegion.iterator();
- while (iterator.hasNext()) {
+ try { while (iterator.hasNext()) { // Paper end - optimise notify()
// CraftBukkit start - fix SPIGOT-6362
Mob entityinsentient;
try {
@@ -1661,16 +1671,23 @@ public class ServerLevel extends Level implements WorldGenLevel {
try {
this.isUpdatingNavigations = true;
- iterator = list.iterator();
+ // Paper start - optimise notify()
+ Iterator<PathNavigation> navigationIterator = list.iterator();
- while (iterator.hasNext()) {
- PathNavigation navigationabstract1 = (PathNavigation) iterator.next();
+ while (navigationIterator.hasNext()) {
+ PathNavigation navigationabstract1 = navigationIterator.next();
+ // Paper end - optimise notify()
navigationabstract1.recomputePath();
}
} finally {
this.isUpdatingNavigations = false;
}
+ // Paper start - optimise notify()
+ } finally {
+ iterator.finishedIterating();
+ }
+ // Paper end - optimise notify()
}
} // Paper
@@ -2468,10 +2485,12 @@ public class ServerLevel extends Level implements WorldGenLevel {
public void onTickingStart(Entity entity) {
ServerLevel.this.entityTickList.add(entity);
+ ServerLevel.this.entityManager.addNavigatorsIfPathingToRegion(entity); // Paper - optimise notify
}
public void onTickingEnd(Entity entity) {
ServerLevel.this.entityTickList.remove(entity);
+ ServerLevel.this.entityManager.removeNavigatorsFromData(entity); // Paper - optimise notify
// Paper start - Reset pearls when they stop being ticked
if (paperConfig().fixes.disableUnloadedChunkEnderpearlExploit && entity instanceof net.minecraft.world.entity.projectile.ThrownEnderpearl pearl) {
pearl.cachedOwner = null;
diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
index af53372391d05dd6aa3757556418e8723b8b6d80..3f672d7c2377fca16a6d8d31cf7aaae4f009fdce 100644
--- a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
+++ b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
@@ -29,7 +29,7 @@ import net.minecraft.world.phys.Vec3;
public abstract class PathNavigation {
private static final int MAX_TIME_RECOMPUTE = 20;
- protected final Mob mob;
+ protected final Mob mob; public final Mob getEntity() { return this.mob; } // Paper - public accessor
protected final Level level;
@Nullable
protected Path path;
@@ -42,7 +42,7 @@ public abstract class PathNavigation {
protected long lastTimeoutCheck;
protected double timeoutLimit;
protected float maxDistanceToWaypoint = 0.5F;
- protected boolean hasDelayedRecomputation;
+ protected boolean hasDelayedRecomputation; protected final boolean needsPathRecalculation() { return this.hasDelayedRecomputation; } // Paper - public accessor
protected long timeLastRecompute;
protected NodeEvaluator nodeEvaluator;
@Nullable
@@ -420,7 +420,7 @@ public abstract class PathNavigation {
public boolean shouldRecomputePath(BlockPos pos) {
if (this.hasDelayedRecomputation) {
return false;
- } else if (this.path != null && !this.path.isDone() && this.path.getNodeCount() != 0) {
+ } else if (this.path != null && !this.path.isDone() && this.path.getNodeCount() != 0) { // Paper - diff on change - needed for isViableForPathRecalculationChecking()
Node node = this.path.getEndNode();
Vec3 vec3 = new Vec3(((double)node.x + this.mob.getX()) / 2.0D, ((double)node.y + this.mob.getY()) / 2.0D, ((double)node.z + this.mob.getZ()) / 2.0D);
return pos.closerToCenterThan(vec3, (double)(this.path.getNodeCount() - this.path.getNextNodeIndex()));
@@ -436,4 +436,11 @@ public abstract class PathNavigation {
public boolean isStuck() {
return this.isStuck;
}
+
+ // Paper start
+ public boolean isViableForPathRecalculationChecking() {
+ return !this.needsPathRecalculation() &&
+ (this.path != null && !this.path.isDone() && this.path.getNodeCount() != 0);
+ }
+ // Paper end
}
diff --git a/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java b/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
index 8ad1c6f8147cfbd4677252a0d76f147786babe59..af37b1fcf8459af41482713a9e977599ae6da556 100644
--- a/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
+++ b/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
@@ -71,6 +71,65 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
}
// CraftBukkit end
+ // Paper start - optimise notify()
+ public final void removeNavigatorsFromData(Entity entity, final int chunkX, final int chunkZ) {
+ if (!(entity instanceof net.minecraft.world.entity.Mob)) {
+ return;
+ }
+ io.papermc.paper.chunk.SingleThreadChunkRegionManager.RegionSection section =
+ this.entitySliceManager.world.getChunkSource().chunkMap.dataRegionManager.getRegionSection(chunkX, chunkZ);
+ if (section != null) {
+ net.minecraft.server.level.ChunkMap.DataRegionSectionData sectionData = (net.minecraft.server.level.ChunkMap.DataRegionSectionData)section.sectionData;
+ sectionData.removeFromNavigators(section, ((net.minecraft.world.entity.Mob)entity));
+ }
+ }
+
+ public final void removeNavigatorsFromData(Entity entity) {
+ if (!(entity instanceof net.minecraft.world.entity.Mob)) {
+ return;
+ }
+ BlockPos entityPos = entity.blockPosition();
+ io.papermc.paper.chunk.SingleThreadChunkRegionManager.RegionSection section =
+ this.entitySliceManager.world.getChunkSource().chunkMap.dataRegionManager.getRegionSection(entityPos.getX() >> 4, entityPos.getZ() >> 4);
+ if (section != null) {
+ net.minecraft.server.level.ChunkMap.DataRegionSectionData sectionData = (net.minecraft.server.level.ChunkMap.DataRegionSectionData)section.sectionData;
+ sectionData.removeFromNavigators(section, ((net.minecraft.world.entity.Mob)entity));
+ }
+ }
+
+ public final void addNavigatorsIfPathingToRegion(Entity entity) {
+ if (!(entity instanceof net.minecraft.world.entity.Mob)) {
+ return;
+ }
+ BlockPos entityPos = entity.blockPosition();
+ io.papermc.paper.chunk.SingleThreadChunkRegionManager.RegionSection section =
+ this.entitySliceManager.world.getChunkSource().chunkMap.dataRegionManager.getRegionSection(entityPos.getX() >> 4, entityPos.getZ() >> 4);
+ if (section != null) {
+ net.minecraft.server.level.ChunkMap.DataRegionSectionData sectionData = (net.minecraft.server.level.ChunkMap.DataRegionSectionData)section.sectionData;
+ if (((net.minecraft.world.entity.Mob)entity).getNavigation().isViableForPathRecalculationChecking()) {
+ sectionData.addToNavigators(section, ((net.minecraft.world.entity.Mob)entity));
+ }
+ }
+ }
+
+ public final void updateNavigatorsInRegion(Entity entity) {
+ if (!(entity instanceof net.minecraft.world.entity.Mob)) {
+ return;
+ }
+ BlockPos entityPos = entity.blockPosition();
+ io.papermc.paper.chunk.SingleThreadChunkRegionManager.RegionSection section =
+ this.entitySliceManager.world.getChunkSource().chunkMap.dataRegionManager.getRegionSection(entityPos.getX() >> 4, entityPos.getZ() >> 4);
+ if (section != null) {
+ net.minecraft.server.level.ChunkMap.DataRegionSectionData sectionData = (net.minecraft.server.level.ChunkMap.DataRegionSectionData)section.sectionData;
+ if (((net.minecraft.world.entity.Mob)entity).getNavigation().isViableForPathRecalculationChecking()) {
+ sectionData.addToNavigators(section, ((net.minecraft.world.entity.Mob)entity));
+ } else {
+ sectionData.removeFromNavigators(section, ((net.minecraft.world.entity.Mob)entity));
+ }
+ }
+ }
+ // Paper end - optimise notify()
+
void removeSectionIfEmpty(long sectionPos, EntitySection<T> section) {
if (section.isEmpty()) {
this.sectionStorage.remove(sectionPos);
@@ -456,11 +515,25 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
@Override
public void onMove() {
BlockPos blockposition = this.entity.blockPosition();
- long i = SectionPos.asLong(blockposition);
+ long i = SectionPos.asLong(blockposition); final long newSectionPos = i; // Paper - diff on change, new position section
if (i != this.currentSectionKey) {
PersistentEntitySectionManager.this.entitySliceManager.moveEntity((Entity)this.entity); // Paper
- Visibility visibility = this.currentSection.getStatus();
+ Visibility visibility = this.currentSection.getStatus(); final Visibility oldVisibility = visibility; // Paper - diff on change - this should be OLD section visibility
+ // Paper start
+ int shift = PersistentEntitySectionManager.this.entitySliceManager.world.getChunkSource().chunkMap.dataRegionManager.regionChunkShift;
+ int oldChunkX = io.papermc.paper.util.CoordinateUtils.getChunkSectionX(this.currentSectionKey);
+ int oldChunkZ = io.papermc.paper.util.CoordinateUtils.getChunkSectionZ(this.currentSectionKey);
+ int oldRegionX = oldChunkX >> shift;
+ int oldRegionZ = oldChunkZ >> shift;
+
+ int newRegionX = io.papermc.paper.util.CoordinateUtils.getChunkSectionX(newSectionPos) >> shift;
+ int newRegionZ = io.papermc.paper.util.CoordinateUtils.getChunkSectionZ(newSectionPos) >> shift;
+
+ if (oldRegionX != newRegionX || oldRegionZ != newRegionZ) {
+ PersistentEntitySectionManager.this.removeNavigatorsFromData((Entity)this.entity, oldChunkX, oldChunkZ);
+ }
+ // Paper end
if (!this.currentSection.remove(this.entity)) {
PersistentEntitySectionManager.LOGGER.warn("Entity {} wasn't found in section {} (moving to {})", new Object[]{this.entity, SectionPos.of(this.currentSectionKey), i});
@@ -472,6 +545,11 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
entitysection.add(this.entity);
this.currentSection = entitysection;
this.currentSectionKey = i;
+ // Paper start
+ if ((oldRegionX != newRegionX || oldRegionZ != newRegionZ) && oldVisibility.isTicking() && entitysection.getStatus().isTicking()) {
+ PersistentEntitySectionManager.this.addNavigatorsIfPathingToRegion((Entity)this.entity);
+ }
+ // Paper end
this.updateStatus(visibility, entitysection.getStatus());
}
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