PaperMC/Spigot-Server-Patches/World-EntityHuman-Lookup-Optimizations.patch
Aikar 9f3623d30d Improvements to Logging Warnings/Dupe Entities - Resolves #1544
1) Removed "Regen" mode of Dupe UUID resolver, forced safe.
Some servers who updated before we had safe mode added still had this value.

There's really no reason to keep this mode, as we've seen that vanilla
triggers this often and 99.9999999% of cases will be an actual duplicate
that needs to be deleted.

2) Made Vanilla Debug messages about dupe UUIDs and dupe uuid resolve messages
only show up if the debug.entities flag is on. This will stop server owners
from panicing from seeing these logs, and stop opening bug reports on this,
only for us to tell you "don't worry about it".

3) Avoid adding entities to world that are already added to world.

This can be triggered by anything that causes an entity to be added
to the world during the chunk load process, such as chunk conversions.

Issue #1544 was a case of this.

4) Removed debug warning about ExpiringMap.

Nothing more I know to do about this anyways. We recover from it,
stop warning to reduce noise of issues to us.
2018-10-07 14:58:53 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: willies952002 <admin@domnian.com>
Date: Mon, 30 Jul 2018 02:42:49 -0400
Subject: [PATCH] World EntityHuman Lookup Optimizations
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index eb6d2b9d51..4cc7f7af0d 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
private final List<TileEntity> c = Lists.newArrayList();
private final Set<TileEntity> tileEntityListUnload = com.google.common.collect.Sets.newHashSet(); // Paper
public final List<EntityHuman> players = Lists.newArrayList();
+ public final Map<String, EntityHuman> playersByName = Maps.newHashMap(); // Paper - World EntityHuman Lookup Optimizations
public final List<Entity> k = Lists.newArrayList();
protected final IntHashMap<Entity> entitiesById = new IntHashMap();
private final long F = 16777215L;
@@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
EntityHuman entityhuman = (EntityHuman) entity;
this.players.add(entityhuman);
+ this.playersByName.put(entityhuman.getName(), entityhuman);
+ // Paper end
this.everyoneSleeping();
}
@@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
entity.die();
if (entity instanceof EntityHuman) {
this.players.remove(entity);
+ this.playersByName.remove(entity.getName()); // Paper - World EntityHuman Lookup Optimizations
// Spigot start
for ( WorldPersistentData worldData : worldMaps.a.values() )
{
@@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
entity.die();
if (entity instanceof EntityHuman) {
this.players.remove(entity);
+ this.playersByName.remove(entity.getName()); // Paper - World EntityHuman Lookup Optimizations
this.everyoneSleeping();
}
@@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
@Nullable
public EntityHuman a(String s) {
+ // Paper start - World EntityHuman Lookup Optimizations
+ /*
for (int i = 0; i < this.players.size(); ++i) {
EntityHuman entityhuman = (EntityHuman) this.players.get(i);
@@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
return null;
+ */
+ return this.playersByName.get(s);
+ // Paper end
}
@Nullable
public EntityHuman b(UUID uuid) {
+ // Paper start - World EntityHuman Lookup Optimizations
+ /*
for (int i = 0; i < this.players.size(); ++i) {
EntityHuman entityhuman = (EntityHuman) this.players.get(i);
@@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
return null;
+ */
+ Entity entity = ((WorldServer)this).entitiesByUUID.get(uuid);
+ return entity instanceof EntityHuman ? (EntityHuman) entity : null;
+ // Paper end
}
public void checkSession() throws ExceptionWorldConflict {
--