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41647af74c
We cannot put blocking network I/O onto the worldgen threads, this will crash the server if it stalls
41 lines
2.7 KiB
Diff
41 lines
2.7 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 db530be96664fc45c881f7438c739109a0aace75..3ef5d440fd3ce209110543bfd36569e846a5b749 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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@@ -37,13 +37,11 @@ import org.slf4j.Logger;
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public class MappedRegistry<T> extends WritableRegistry<T> {
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private static final Logger LOGGER = LogUtils.getLogger();
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private final ObjectList<Holder.Reference<T>> byId = new ObjectArrayList<>(256);
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- private final Object2IntMap<T> toId = Util.make(new Object2IntOpenCustomHashMap<>(Util.identityStrategy()), (object2IntOpenCustomHashMap) -> {
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- object2IntOpenCustomHashMap.defaultReturnValue(-1);
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- });
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- private final Map<ResourceLocation, Holder.Reference<T>> byLocation = new HashMap<>();
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- private final Map<ResourceKey<T>, Holder.Reference<T>> byKey = new HashMap<>();
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- private final Map<T, Holder.Reference<T>> byValue = new IdentityHashMap<>();
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- private final Map<T, Lifecycle> lifecycles = new IdentityHashMap<>();
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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 Map<ResourceLocation, Holder.Reference<T>> byLocation = new HashMap<>(2048); // Paper - use bigger expected size to reduce collisions
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+ private final Map<ResourceKey<T>, Holder.Reference<T>> byKey = new HashMap<>(2048); // Paper - use bigger expected size to reduce collisions
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+ private final Map<T, Holder.Reference<T>> byValue = new IdentityHashMap<>(2048); // Paper - use bigger expected size to reduce collisions
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+ private final Map<T, Lifecycle> lifecycles = new IdentityHashMap<>(2048); // Paper - use bigger expected size to reduce collisions
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private Lifecycle elementsLifecycle;
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private volatile Map<TagKey<T>, HolderSet.Named<T>> tags = new IdentityHashMap<>();
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private boolean frozen;
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@@ -63,6 +61,7 @@ public class MappedRegistry<T> extends WritableRegistry<T> {
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this.intrusiveHolderCache = new IdentityHashMap<>();
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}
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+ this.toId.defaultReturnValue(-1); // Paper
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}
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private List<Holder.Reference<T>> holdersInOrder() {
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