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LeavesMC/patches/server/0034-Reduce-entity-allocations.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: violetc <58360096+s-yh-china@users.noreply.github.com>
Date: Wed, 17 Aug 2022 10:48:18 +0800
Subject: [PATCH] Reduce entity allocations
This patch is Powered by Pufferfish(https://github.com/pufferfish-gg/Pufferfish)
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 1f1bed78e8d003cfd85bc5cf38014c3ddb3078d1..66cecf64fac0b72590e1a4ea7147ea2ac78dd30a 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -414,6 +414,8 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
return this.originWorld;
}
// Paper end
+ // public final BlockPos.MutableBlockPos cachedBlockPos = new BlockPos.MutableBlockPos(); // Leaves - used where needed ?
+
public float getBukkitYaw() {
return this.yRot;
}
diff --git a/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeMap.java b/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeMap.java
index c770ee21b7b699522941f6a1584d532001c04082..a0672f21797ff90e8bb6b16d3aaa671b317d6912 100644
--- a/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeMap.java
+++ b/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeMap.java
@@ -22,9 +22,11 @@ public class AttributeMap {
private final Map<Attribute, AttributeInstance> attributes = Maps.newHashMap();
private final Set<AttributeInstance> dirtyAttributes = Sets.newHashSet();
private final AttributeSupplier supplier;
+ private final java.util.function.Function<Attribute, AttributeInstance> createInstance; // Leaves - reduce entity allocations
public AttributeMap(AttributeSupplier defaultAttributes) {
this.supplier = defaultAttributes;
+ this.createInstance = attribute -> this.supplier.createInstance(this::onAttributeModified, attribute);
}
private void onAttributeModified(AttributeInstance instance) {
@@ -46,9 +48,15 @@ public class AttributeMap {
@Nullable
public AttributeInstance getInstance(Attribute attribute) {
- return this.attributes.computeIfAbsent(attribute, (attributex) -> {
- return this.supplier.createInstance(this::onAttributeModified, attributex);
- });
+ // Leaves start - cache lambda, as for some reason java allocates it anyways
+ if (top.leavesmc.leaves.LeavesConfig.reduceEntityAllocations) {
+ return this.attributes.computeIfAbsent(attribute, this.createInstance);
+ } else {
+ return this.attributes.computeIfAbsent(attribute, (attributex) -> {
+ return this.supplier.createInstance(this::onAttributeModified, attributex);
+ });
+ }
+ // Leaves end - cache lambda, as for some reason java allocates it anyways
}
public boolean hasAttribute(Attribute attribute) {
diff --git a/src/main/java/top/leavesmc/leaves/LeavesConfig.java b/src/main/java/top/leavesmc/leaves/LeavesConfig.java
index 1e7b428f4e8fef77bdc8eae43216fe113484fdcc..afdb9c047d9f06c6dee5cec24393d5dd5bc9546b 100644
--- a/src/main/java/top/leavesmc/leaves/LeavesConfig.java
+++ b/src/main/java/top/leavesmc/leaves/LeavesConfig.java
@@ -298,6 +298,11 @@ public final class LeavesConfig {
skipCloneLootParameters = getBoolean("settings.performance.skip-clone-loot-parameters", skipCloneLootParameters);
}
+ public static boolean reduceEntityAllocations = true;
+ private static void reduceEntityAllocations() {
+ reduceEntityAllocations = getBoolean("settings.performance.reduce-entity-allocations", reduceEntityAllocations);
+ }
+
public static final class WorldConfig {
public final String worldName;