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https://github.com/PaperMC/Paper.git
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67 lines
3.5 KiB
Diff
67 lines
3.5 KiB
Diff
From 514b1351f36fbbfdd06fb0648db70ebc14168c7c Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Thu, 4 Apr 2019 17:55:05 -0700
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Subject: [PATCH] Optimize GameRules to use LinkedHashMap
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Previously TreeMap was used which has poor get(K) performance.
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diff --git a/src/main/java/net/minecraft/server/GameRules.java b/src/main/java/net/minecraft/server/GameRules.java
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index 3de9d264db..c6a8004745 100644
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--- a/src/main/java/net/minecraft/server/GameRules.java
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+++ b/src/main/java/net/minecraft/server/GameRules.java
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@@ -17,7 +17,17 @@ import javax.annotation.Nullable;
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public class GameRules {
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- private static final TreeMap<String, GameRules.GameRuleDefinition> a = SystemUtils.a(new TreeMap(), (treemap) -> { // Paper - decompile fix
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+ // Paper start - Optimize GameRules
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+ private static final int RULES_SIZE = 256;
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+
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+ private static <K, V> java.util.LinkedHashMap<K, V> linkedMapOf(final int capacity, final TreeMap<K, V> map) {
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+ final java.util.LinkedHashMap<K, V> ret = new java.util.LinkedHashMap<>(capacity);
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+ ret.putAll(map);
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+ return ret;
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+ }
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+
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+ private static final java.util.LinkedHashMap<String, GameRuleDefinition> a = GameRules.linkedMapOf(RULES_SIZE, SystemUtils.a(new TreeMap(), (treemap) -> { // Paper - decompile fix
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+ // Paper end
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treemap.put("doFireTick", new GameRules.GameRuleDefinition("true", GameRules.EnumGameRuleType.BOOLEAN_VALUE));
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treemap.put("mobGriefing", new GameRules.GameRuleDefinition("true", GameRules.EnumGameRuleType.BOOLEAN_VALUE));
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treemap.put("keepInventory", new GameRules.GameRuleDefinition("false", GameRules.EnumGameRuleType.BOOLEAN_VALUE));
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@@ -51,8 +61,8 @@ public class GameRules {
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treemap.put("doLimitedCrafting", new GameRules.GameRuleDefinition("false", GameRules.EnumGameRuleType.BOOLEAN_VALUE));
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treemap.put("maxCommandChainLength", new GameRules.GameRuleDefinition("65536", GameRules.EnumGameRuleType.NUMERICAL_VALUE));
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treemap.put("announceAdvancements", new GameRules.GameRuleDefinition("true", GameRules.EnumGameRuleType.BOOLEAN_VALUE));
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- });
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- private final TreeMap<String, GameRules.GameRuleValue> b = new TreeMap();
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+ })); // Paper - Optimize GameRules
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+ private final java.util.LinkedHashMap<String, GameRuleValue> b = new java.util.LinkedHashMap<>(RULES_SIZE); // Paper - Optimize GameRules
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public GameRules() {
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Iterator iterator = GameRules.a.entrySet().iterator();
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@@ -116,7 +126,7 @@ public class GameRules {
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return (GameRules.GameRuleValue) this.b.get(s);
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}
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- public static TreeMap<String, GameRules.GameRuleDefinition> getGameRules() {
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+ public static java.util.LinkedHashMap<String, GameRuleDefinition> getGameRules() { // Paper - Optimize GameRules
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return GameRules.a;
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}
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diff --git a/src/test/java/org/bukkit/GameRuleTest.java b/src/test/java/org/bukkit/GameRuleTest.java
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index 1ed0f4cf2b..40edb8d668 100644
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--- a/src/test/java/org/bukkit/GameRuleTest.java
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+++ b/src/test/java/org/bukkit/GameRuleTest.java
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@@ -21,7 +21,7 @@ public class GameRuleTest {
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@Test
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public void testMinecraftRules() {
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- TreeMap<String, GameRules.GameRuleDefinition> minecraftRules = GameRules.getGameRules();
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+ Map<String, GameRules.GameRuleDefinition> minecraftRules = GameRules.getGameRules(); // Paper - Optimize GameRules
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for (Map.Entry<String, GameRules.GameRuleDefinition> entry : minecraftRules.entrySet()) {
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GameRule<?> bukkitRule = GameRule.getByName(entry.getKey());
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--
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2.21.0
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