Paper/Spigot-Server-Patches/0233-Fix-MC-117075-TE-Unload-Lag-Spike.patch

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From cf26274e3d4eebb66781babe9364e228d1751371 Mon Sep 17 00:00:00 2001
From: mezz <tehgeek@gmail.com>
Date: Wed, 9 Aug 2017 17:51:22 -0500
Subject: [PATCH] Fix MC-117075: TE Unload Lag Spike
diff --git a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
index 239440888..e8d1a1c60 100644
--- a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
+++ b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
@@ -15,6 +15,7 @@ public class ChunkCoordIntPair {
this.z = blockposition.getZ() >> 4;
}
+ public static long asLong(int x, int z) { return a(x, z); } // Paper - OBFHELPER
public static long a(int i, int j) {
return (long) i & 4294967295L | ((long) j & 4294967295L) << 32;
}
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 30cf4a251..f690aaa10 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -1574,7 +1574,11 @@ public abstract class World implements IBlockAccess {
this.methodProfiler.c("blockEntities");
timings.tileEntityTick.startTiming(); // Spigot
if (!this.tileEntityListUnload.isEmpty()) {
- this.tileEntityListTick.removeAll(this.tileEntityListUnload);
+ // Paper start - Use alternate implementation with faster contains
+ java.util.Set<TileEntity> toRemove = java.util.Collections.newSetFromMap(new java.util.IdentityHashMap<>());
+ toRemove.addAll(tileEntityListUnload);
+ this.tileEntityListTick.removeAll(toRemove);
+ // Paper end
//this.tileEntityList.removeAll(this.tileEntityListUnload); // Paper - remove unused list
this.tileEntityListUnload.clear();
}
--
2.14.1