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4768e3c4ed
Reduces number of instructions a chunk lookup does when accessing the last chunk cache. This reduces amount of work and opcodes and allows better inlining. In lots of profiling comparisons, this optimization was able to reduce the cost of repeated chunk lookups that hit the cache pretty significantly.
72 lines
3.3 KiB
Diff
72 lines
3.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 23 Jul 2018 22:44:23 -0400
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Subject: [PATCH] Add some Debug to Chunk Entity slices
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If we detect unexpected state, log and try to recover
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This should hopefully avoid duplicate entities ever being created
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if the entity was to end up in 2 different chunk slices
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diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
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index 90b2a891c5bfa26ab1ff6738f58719a10d5cbed6..8b9454fd44fe1d14eb6d46f772be56937c99595a 100644
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--- a/src/main/java/net/minecraft/server/Chunk.java
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+++ b/src/main/java/net/minecraft/server/Chunk.java
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@@ -514,6 +514,25 @@ public class Chunk implements IChunkAccess {
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if (k >= this.entitySlices.length) {
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k = this.entitySlices.length - 1;
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}
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+ // Paper - remove from any old list if its in one
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+ List<Entity> nextSlice = this.entitySlices[k]; // the next list to be added to
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+ List<Entity> currentSlice = entity.entitySlice;
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+ if (nextSlice == currentSlice) {
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+ if (World.DEBUG_ENTITIES) MinecraftServer.LOGGER.warn("Entity was already in this chunk!" + entity, new Throwable());
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+ return; // ??? silly plugins
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+ }
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+ if (currentSlice != null && currentSlice.contains(entity)) {
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+ // Still in an old chunk...
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+ if (World.DEBUG_ENTITIES) MinecraftServer.LOGGER.warn("Entity is still in another chunk!" + entity, new Throwable());
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+ Chunk chunk = entity.getCurrentChunk();
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+ if (chunk != null) {
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+ chunk.removeEntity(entity);
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+ } else {
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+ removeEntity(entity);
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+ }
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+ currentSlice.remove(entity); // Just incase the above did not remove from the previous slice
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+ }
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+ // Paper end
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if (!entity.inChunk || entity.getCurrentChunk() != this) entityCounts.increment(entity.getMinecraftKeyString()); // Paper
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entity.inChunk = true;
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@@ -523,6 +542,7 @@ public class Chunk implements IChunkAccess {
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entity.chunkZ = this.loc.z;
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this.entities.add(entity); // Paper - per chunk entity list
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this.entitySlices[k].add(entity);
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+ entity.entitySlice = this.entitySlices[k]; // Paper
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this.markDirty(); // Paper
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}
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@@ -547,6 +567,10 @@ public class Chunk implements IChunkAccess {
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// Paper start
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if (entity.currentChunk != null && entity.currentChunk.get() == this) entity.setCurrentChunk(null);
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+ if (entitySlices[i] == entity.entitySlice) {
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+ entity.entitySlice = null;
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+ entity.inChunk = false;
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+ }
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if (!this.entitySlices[i].remove(entity)) {
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return;
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}
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diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
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index 02e4ce705c2a7a1cdc7024a6c3db799db8922ce9..29b24fd75f06501a814868d1fab85c9b818bd316 100644
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--- a/src/main/java/net/minecraft/server/Entity.java
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+++ b/src/main/java/net/minecraft/server/Entity.java
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@@ -71,6 +71,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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}
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}
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};
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+ List<Entity> entitySlice = null;
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// Paper end
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public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
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