PaperMC/Spigot-Server-Patches/Remove-unused-World-Tile-Entity-List.patch
Aikar 8778a2ef97 Current Chunk for Entity and Block Entities, counts by entity type
This enables us a fast reference to the entities current chunk instead
of having to look it up by hashmap lookups.

We also store counts by type to further enable other performance optimizations in later patches.
2018-07-04 03:55:24 -04:00

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Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 13 Apr 2016 00:25:28 -0400
Subject: [PATCH] Remove unused World Tile Entity List
Massive hit to performance and it is completely unnecessary.
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index ad422b24b..5f92355db 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 IBlockAccess {
};
// Spigot end
protected final Set<Entity> f = Sets.newHashSet(); // Paper
- public final List<TileEntity> tileEntityList = Lists.newArrayList();
+ //public final List<TileEntity> tileEntityList = Lists.newArrayList(); // Paper - remove unused list
public final List<TileEntity> tileEntityListTick = Lists.newArrayList();
private final List<TileEntity> b = Lists.newArrayList();
private final Set<TileEntity> tileEntityListUnload = Sets.newHashSet(); // Paper
@@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {
timings.tileEntityTick.startTiming(); // Spigot
if (!this.tileEntityListUnload.isEmpty()) {
this.tileEntityListTick.removeAll(this.tileEntityListUnload);
- this.tileEntityList.removeAll(this.tileEntityListUnload);
+ //this.tileEntityList.removeAll(this.tileEntityListUnload); // Paper - remove unused list
this.tileEntityListUnload.clear();
}
@@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {
if (tileentity.y()) {
tilesThisCycle--;
this.tileEntityListTick.remove(tileTickPosition--);
- this.tileEntityList.remove(tileentity);
+ //this.tileEntityList.remove(tileentity); // Paper - remove unused list
if (this.isLoaded(tileentity.getPosition())) {
this.getChunkAtWorldCoords(tileentity.getPosition()).d(tileentity.getPosition());
}
@@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {
this.notify(tileentity1.getPosition(), iblockdata, iblockdata, 3);
// CraftBukkit start
// From above, don't screw this up - SPIGOT-1746
- if (!this.tileEntityList.contains(tileentity1)) {
+ if (true) { // Paper - remove unused list
this.a(tileentity1);
}
// CraftBukkit end
@@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {
protected void l() {}
public boolean a(TileEntity tileentity) {
- boolean flag = this.tileEntityList.add(tileentity);
+ boolean flag = true; // Paper - remove unused list
- if (flag && tileentity instanceof ITickable) {
+ if (flag && tileentity instanceof ITickable && !this.tileEntityListTick.contains(tileentity)) { // Paper
this.tileEntityListTick.add(tileentity);
}
@@ -0,0 +0,0 @@ public abstract class World implements IBlockAccess {
} else {
if (tileentity != null) {
this.b.remove(tileentity);
- this.tileEntityList.remove(tileentity);
+ //this.tileEntityList.remove(tileentity); // Paper - remove unused list
this.tileEntityListTick.remove(tileentity);
}
--