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35 lines
2.1 KiB
Diff
35 lines
2.1 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: Sun, 26 Aug 2018 20:49:50 -0400
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Subject: [PATCH] Optimize MappedRegistry
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Use larger initial sizes to increase bucket capacity on the BiMap
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BiMap.get was seen to be using a good bit of CPU time.
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diff --git a/src/main/java/net/minecraft/core/MappedRegistry.java b/src/main/java/net/minecraft/core/MappedRegistry.java
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index 889c213205738ba637a28895977714df2d025b6d..87ea9b851531ac98a2dce66651f1730c5eb5e7d4 100644
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--- a/src/main/java/net/minecraft/core/MappedRegistry.java
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+++ b/src/main/java/net/minecraft/core/MappedRegistry.java
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@@ -37,7 +37,7 @@ import org.apache.logging.log4j.Logger;
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public class MappedRegistry<T> extends WritableRegistry<T> {
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protected static final Logger LOGGER = LogManager.getLogger();
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private final ObjectList<T> byId = new ObjectArrayList<>(256);
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- private final Object2IntMap<T> toId = new Object2IntOpenCustomHashMap<>(Util.identityStrategy());
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+ private final it.unimi.dsi.fastutil.objects.Reference2IntOpenHashMap<T> toId = new it.unimi.dsi.fastutil.objects.Reference2IntOpenHashMap<T>(2048);// Paper - use bigger expected size to reduce collisions and direct intent for FastUtil to be identity map
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private final BiMap<ResourceLocation, T> storage;
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private final BiMap<ResourceKey<T>, T> keyStorage;
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private final Map<T, Lifecycle> lifecycles;
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@@ -48,9 +48,9 @@ public class MappedRegistry<T> extends WritableRegistry<T> {
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public MappedRegistry(ResourceKey<? extends Registry<T>> key, Lifecycle lifecycle) {
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super(key, lifecycle);
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this.toId.defaultReturnValue(-1);
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- this.storage = HashBiMap.create();
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- this.keyStorage = HashBiMap.create();
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- this.lifecycles = Maps.newIdentityHashMap();
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+ this.storage = HashBiMap.create(2048); // Paper - use bigger expected size to reduce collisions
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+ this.keyStorage = HashBiMap.create(2048); // Paper - use bigger expected size to reduce collisions
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+ this.lifecycles = new java.util.IdentityHashMap<>(2048); // Paper - use bigger expected size to reduce collisions
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this.elementsLifecycle = lifecycle;
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}
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