PaperMC/patches/server/0796-Optimise-WorldServer-notify.patch
Nassim Jahnke ca708a0944
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#6539)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
ed7bba95 SPIGOT-6547: Chunk#getEntities() doesn't return all entities immediately after chunk load
d99a585c SPIGOT-6719: Add getTileEntities() to LimitedRegion

CraftBukkit Changes:
422cec08 Rebuild patch
15f27fc7 SPIGOT-6547: Chunk#getEntities() doesn't return all entities immediately after chunk load
cbd747af SPIGOT-6719: Add getTileEntities() to LimitedRegion

Spigot Changes:
6c1c1b26 Rebuild patches
2021-09-01 14:03:36 +02:00

325 lines
18 KiB
Diff

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 daa589cb9441d2255dbbd30583a8c003a325976f..4386402e5e55438475c48b023c61bfb2dbe71a8f 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -290,15 +290,81 @@ 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
@@ -308,6 +374,15 @@ 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 6e8115c3ab1f6986fdf3b3716cb09add91424306..cebaf0fb8187335ca303621a2cb412bb22584e23 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1079,6 +1079,7 @@ 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");
+ this.entityManager.updateNavigatorsInRegion(entity); // Paper - optimise notify
try {
if (currentlyTickingEntity.get() == null) {
currentlyTickingEntity.lazySet(entity);
@@ -1524,9 +1525,19 @@ public class ServerLevel extends Level implements WorldGenLevel {
VoxelShape voxelshape1 = newState.getCollisionShape(this, pos);
if (Shapes.joinIsNotEmpty(voxelshape, voxelshape1, BooleanOp.NOT_SAME)) {
- 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 {
@@ -1545,6 +1556,11 @@ public class ServerLevel extends Level implements WorldGenLevel {
navigationabstract.recomputePath(pos);
}
}
+ // Paper start - optimise notify()
+ } finally {
+ iterator.finishedIterating();
+ }
+ // Paper end - optimise notify()
}
} // Paper
@@ -2326,10 +2342,12 @@ 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
}
public void onTrackingStart(Entity entity) {
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 e605daac0c90f5d0b9315d1499938feb0e478d0e..b5c385aeb86ac267cae9726354c896ee38a50634 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
@@ -27,7 +27,7 @@ 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;
@@ -40,7 +40,7 @@ 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;
private BlockPos targetPos;
@@ -49,6 +49,13 @@ public abstract class PathNavigation {
public final PathFinder pathFinder;
private boolean isStuck;
+ // Paper start
+ public boolean isViableForPathRecalculationChecking() {
+ return !this.needsPathRecalculation() &&
+ (this.path != null && !this.path.isDone() && this.path.getNodeCount() != 0);
+ }
+ // Paper end
+
public PathNavigation(Mob mob, Level world) {
this.mob = mob;
this.level = world;
@@ -404,7 +411,7 @@ public abstract class PathNavigation {
}
public void recomputePath(BlockPos pos) {
- if (this.path != null && !this.path.isDone() && this.path.getNodeCount() != 0) {
+ 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);
if (pos.closerThan(vec3, (double)(this.path.getNodeCount() - this.path.getNextNodeIndex()))) {
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 dbb78ee61a6a3a7336f0656414cd729efd013009..1ed6573e0ca6b353d1de3b4486e199a5db9aa447 100644
--- a/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
+++ b/src/main/java/net/minecraft/world/level/entity/PersistentEntitySectionManager.java
@@ -67,6 +67,65 @@ 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);
@@ -457,11 +516,25 @@ 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 {})", this.entity, SectionPos.of(this.currentSectionKey), i);
@@ -473,6 +546,11 @@ public class PersistentEntitySectionManager<T extends EntityAccess> implements A
entitysection.add(this.entity); // CraftBukkit - decompile error
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());
}