2016-04-02 02:08:40 +00:00
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From 005dac3ad5e821f19272ed003a8b4df9aac6e56f Mon Sep 17 00:00:00 2001
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2016-04-01 01:45:30 +00:00
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From: Aikar <aikar@aikar.co>
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Date: Wed, 30 Mar 2016 02:13:24 -0400
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Subject: [PATCH] Use FastUtil Int HashMap for DataWatcher
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For DataWatcher, swap out plain Integer key HashMap for a Int2ObjectOpenHashMap
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These collections are super fast as seen
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http://java-performance.info/hashmap-overview-jdk-fastutil-goldman-sachs-hppc-koloboke-trove-january-2015/
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diff --git a/src/main/java/net/minecraft/server/DataWatcher.java b/src/main/java/net/minecraft/server/DataWatcher.java
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index f1c62ec..68a0565 100644
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--- a/src/main/java/net/minecraft/server/DataWatcher.java
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+++ b/src/main/java/net/minecraft/server/DataWatcher.java
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@@ -11,13 +11,14 @@ import java.util.List;
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import java.util.Map;
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import java.util.concurrent.locks.ReadWriteLock;
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import java.util.concurrent.locks.ReentrantReadWriteLock;
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+import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap; // Paper
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import org.apache.commons.lang3.ObjectUtils;
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public class DataWatcher {
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private static final Map<Class<? extends Entity>, Integer> a = Maps.newHashMap();
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private final Entity b;
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- private final Map<Integer, DataWatcher.Item<?>> c = Maps.newHashMap();
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+ private final Map<Integer, DataWatcher.Item<?>> c = new Int2ObjectOpenHashMap<>(); // Paper
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private final ReadWriteLock d = new ReentrantReadWriteLock();
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private boolean e = true;
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private boolean f;
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--
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2.8.0
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