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Optimize getChunkIfLoaded type calls

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Uses optimized check to avoid major locks and large method.

Will improve inlining across many hot methods.

Improve getBrightness to not do double chunk map lookups.
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Aikar 2018-08-29 22:12:17 -04:00
parent 5e7e79880e
commit aabff6632d
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1 changed files with 81 additions and 0 deletions
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Spigot-Server-Patches/0355-Optimize-getChunkIfLoaded-type-calls.patch Normal file
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@ -0,0 +1,81 @@
From b8345560939d63b8f8e221f468aaf9792c61152a Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 29 Aug 2018 21:59:22 -0400
Subject: [PATCH] Optimize getChunkIfLoaded type calls
Uses optimized check to avoid major locks and large method.
Will improve inlining across many hot methods.
Improve getBrightness to not do double chunk map lookups.
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 96d49b469a..c0ec896eea 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -381,7 +381,7 @@ public class ChunkProviderServer implements IChunkProvider {
continue;
}
- Chunk neighbor = this.getChunkAt(chunk.locX + x, chunk.locZ + z, false, false);
+ Chunk neighbor = this.chunks.get(chunk.chunkKey); // Paper
if (neighbor != null) {
neighbor.setNeighborUnloaded(-x, -z);
chunk.setNeighborUnloaded(x, z);
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 49809372d8..0437cfdd55 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -165,7 +165,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
public Chunk getChunkIfLoaded(int x, int z) {
- return ((ChunkProviderServer) this.chunkProvider).getChunkAt(x, z, false, false);
+ return ((ChunkProviderServer) this.chunkProvider).chunks.get(ChunkCoordIntPair.a(x, z)); // Paper - optimize getChunkIfLoaded
}
protected World(IDataManager idatamanager, @Nullable PersistentCollection persistentcollection, WorldData worlddata, WorldProvider worldprovider, MethodProfiler methodprofiler, boolean flag, ChunkGenerator gen, org.bukkit.World.Environment env) {
@@ -715,7 +715,8 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
blockposition = new BlockPosition(blockposition.getX(), 0, blockposition.getZ());
}
- return !blockposition.isValidLocation() ? enumskyblock.c : (!this.isLoaded(blockposition) ? enumskyblock.c : this.getChunkAtWorldCoords(blockposition).getBrightness(enumskyblock, blockposition)); // Paper
+ Chunk chunk; // Paper
+ return !blockposition.isValidLocation() ? enumskyblock.c : ((chunk = this.getChunkIfLoaded(blockposition)) == null ? enumskyblock.c : chunk.getBrightness(enumskyblock, blockposition)); // Paper - optimize ifChunkLoaded
}
public void a(EnumSkyBlock enumskyblock, BlockPosition blockposition, int i) {
@@ -2017,7 +2018,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
if (blockposition.isInvalidYLocation()) { // Paper
return false;
} else {
- Chunk chunk = this.chunkProvider.getChunkAt(blockposition.getX() >> 4, blockposition.getZ() >> 4, false, false);
+ Chunk chunk = this.getChunkIfLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4); // Paper - optimize ifLoaded
return chunk != null && !chunk.isEmpty();
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 1ccf2a7609..d9766447de 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -227,7 +227,7 @@ public class CraftWorld implements World {
return false;
}
- net.minecraft.server.Chunk chunk = world.getChunkProviderServer().getChunkAt(x, z, false, false);
+ net.minecraft.server.Chunk chunk = world.getChunkIfLoaded(x, z); // Paper - optimize ifLaoded
if (chunk != null) {
world.getChunkProviderServer().unload(chunk);
}
@@ -246,7 +246,7 @@ public class CraftWorld implements World {
private boolean unloadChunk0(int x, int z, boolean save) {
Boolean result = MCUtil.ensureMain("Unload Chunk", () -> { // Paper - Ensure never async
- net.minecraft.server.Chunk chunk = world.getChunkProviderServer().getChunkAt(x, z, false, false);
+ net.minecraft.server.Chunk chunk = world.getChunkIfLoaded(x, z); // Paper - optimize ifLoaded
if (chunk == null) {
return true;
}
--
2.18.0