papermc/Spigot-Server-Patches/0286-Optimize-RegistryMaterials.patch

35 lines
1.5 KiB
Diff

From debafca18922cf529cf9ae83cd0eda966650b588 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 26 Aug 2018 20:49:50 -0400
Subject: [PATCH] Optimize RegistryMaterials
Use larger initial sizes to increase bucket capacity on the BiMap
BiMap.get was seen to be using a good bit of CPU time.
diff --git a/src/main/java/net/minecraft/server/RegistryMaterials.java b/src/main/java/net/minecraft/server/RegistryMaterials.java
index 2d6a7b3a47..8477febca2 100644
--- a/src/main/java/net/minecraft/server/RegistryMaterials.java
+++ b/src/main/java/net/minecraft/server/RegistryMaterials.java
@@ -16,8 +16,8 @@ import org.apache.logging.log4j.Logger;
public class RegistryMaterials<T> extends IRegistryWritable<T> {
protected static final Logger LOGGER = LogManager.getLogger();
- protected final RegistryID<T> b = new RegistryID<>(256);
- protected final BiMap<MinecraftKey, T> c = HashBiMap.create();
+ protected final RegistryID<T> b = new RegistryID<>(2048); // Paper - use bigger expected size to reduce collisions
+ protected final BiMap<MinecraftKey, T> c = HashBiMap.create(2048); // Paper - use bigger expected size to reduce collisions
protected Object[] d;
private int V;
@@ -101,6 +101,6 @@ public class RegistryMaterials<T> extends IRegistryWritable<T> {
this.d = collection.toArray(new Object[collection.size()]);
}
- return this.d[random.nextInt(this.d.length)];
+ return (T) this.d[random.nextInt(this.d.length)]; // Paper - Decompile fix
}
}
--
2.24.1