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https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-16 19:40:07 +01:00
210a32f26f
Due to some complexity in mojangs complicated chain of juggling whether or not a chunk should be unloaded when the last ticket is removed, many chunks are remaining around in the cache. These chunks are never being targetted for unload because they are vastly out of view distance range and have no reason to be looked at. This is a huge issue for performance because we have to iterate these chunks EVERY TICK... This is what's been leading to high SELF time in Ticking Chunks timings/profiler results. We will now detect these chunks in that iteration, and automatically add it to the unload queue when the chunk is found without any tickets.
72 Zeilen
3.3 KiB
Diff
72 Zeilen
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 0b62004422108e126d80a879c203fab0455e1451..4e7f3065694c8811d5c98bcda64ae32b220e0d7a 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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@@ -506,6 +506,25 @@ 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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@@ -515,6 +534,7 @@ 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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@@ -539,6 +559,10 @@ 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 653e6d9a1640bedf08aaa5b436ac93e4cb1cb5b7..84d36ea84e25a701af22900af6cd3099adf6cd54 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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