From fa26bac76e8d9a8d2e42958564faf5613d324084 Mon Sep 17 00:00:00 2001 From: Aikar 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 2d6a7b3a4..8477febca 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 extends IRegistryWritable { protected static final Logger LOGGER = LogManager.getLogger(); - protected final RegistryID b = new RegistryID<>(256); - protected final BiMap c = HashBiMap.create(); + protected final RegistryID b = new RegistryID<>(2048); // Paper - use bigger expected size to reduce collisions + protected final BiMap 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 extends IRegistryWritable { 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 } } -- 2.25.1