geforkt von Mirrors/Paper
994679a0c9
Tux pointed out the patch still has O(n^2) time complexity since the sublist class in arraylist does not override clear() from AbstractList, which uses a forward moving iterator to clear the list. Resolved by using a peek and poll from ArrayDeque. This patch also removes the useless WeakHashMap which holds the list (it mapped world->list) and replaces it with a field on World.
27 Zeilen
1.3 KiB
Diff
27 Zeilen
1.3 KiB
Diff
From 4a06cdf0e8a73013b84c46cd67d12b3cec8cbfb4 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/World.java b/src/main/java/net/minecraft/server/World.java
|
|
index 8ac081bef..f9413dd68 100644
|
|
--- a/src/main/java/net/minecraft/server/World.java
|
|
+++ b/src/main/java/net/minecraft/server/World.java
|
|
@@ -730,7 +730,11 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
|
|
gameprofilerfiller.enter("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();
|
|
}
|
|
--
|
|
2.21.0
|
|
|