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Optimize MappedRegistry

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Use larger initial sizes to increase bucket capacity on the BiMap

BiMap.get was seen to be using a good bit of CPU time.
This commit is contained in:
Aikar 2018-08-26 20:49:50 -04:00
parent 68e76b43b8
commit 1ef5dc7644
1 changed files with 19 additions and 0 deletions
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19
paper-server/patches/sources/net/minecraft/core/MappedRegistry.java.patch Normal file
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@ -0,0 +1,19 @@
--- a/net/minecraft/core/MappedRegistry.java
+++ b/net/minecraft/core/MappedRegistry.java
@@ -33,11 +33,11 @@
public class MappedRegistry<T> implements WritableRegistry<T> {
private final ResourceKey<? extends Registry<T>> key;
private final ObjectList<Holder.Reference<T>> byId = new ObjectArrayList<>(256);
- private final Reference2IntMap<T> toId = Util.make(new Reference2IntOpenHashMap<>(), map -> map.defaultReturnValue(-1));
- private final Map<ResourceLocation, Holder.Reference<T>> byLocation = new HashMap<>();
- private final Map<ResourceKey<T>, Holder.Reference<T>> byKey = new HashMap<>();
- private final Map<T, Holder.Reference<T>> byValue = new IdentityHashMap<>();
- private final Map<ResourceKey<T>, RegistrationInfo> registrationInfos = new IdentityHashMap<>();
+ private final Reference2IntMap<T> toId = Util.make(new Reference2IntOpenHashMap<>(2048), map -> map.defaultReturnValue(-1)); // Paper - Perf: Use bigger expected size to reduce collisions
+ private final Map<ResourceLocation, Holder.Reference<T>> byLocation = new HashMap<>(2048); // Paper - Perf: Use bigger expected size to reduce collisions
+ private final Map<ResourceKey<T>, Holder.Reference<T>> byKey = new HashMap<>(2048); // Paper - Perf: Use bigger expected size to reduce collisions
+ private final Map<T, Holder.Reference<T>> byValue = new IdentityHashMap<>(2048); // Paper - Perf: Use bigger expected size to reduce collisions
+ private final Map<ResourceKey<T>, RegistrationInfo> registrationInfos = new IdentityHashMap<>(2048); // Paper - Perf: Use bigger expected size to reduce collisions
private Lifecycle registryLifecycle;
private final Map<TagKey<T>, HolderSet.Named<T>> frozenTags = new IdentityHashMap<>();
MappedRegistry.TagSet<T> allTags = MappedRegistry.TagSet.unbound();