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de04cbced5
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: f29cb801 Separate checkstyle-suppressions file is not required 86f99bbe SPIGOT-7540, PR-946: Add ServerTickManager API d4119585 SPIGOT-6903, PR-945: Add BlockData#getMapColor b7a2ed41 SPIGOT-7530, PR-947: Add Player#removeResourcePack 9dd56255 SPIGOT-7527, PR-944: Add WindCharge#explode() 994a6163 Attempt upgrade of resolver libraries CraftBukkit Changes: b3b43a6ad Add Checkstyle check for unused imports 13fb3358e SPIGOT-7544: Scoreboard#getEntries() doesn't get entries but class names 3dda99c06 SPIGOT-7540, PR-1312: Add ServerTickManager API 2ab4508c0 SPIGOT-6903, PR-1311: Add BlockData#getMapColor 1dbdbbed4 PR-1238: Remove unnecessary sign ticking 659728d2a MC-264285, SPIGOT-7439, PR-1237: Fix unbreakable flint and steel is completely consumed while igniting creeper e37e29ce0 Increase outdated build delay c00438b39 SPIGOT-7530, PR-1313: Add Player#removeResourcePack 492dd80ce SPIGOT-7527, PR-1310: Add WindCharge#explode() e11fbb9d7 Upgrade MySQL driver 9f3a0bd2a Attempt upgrade of resolver libraries 60d16d7ca PR-1306: Centralize Bukkit and Minecraft entity conversion Spigot Changes: 06d602e7 Rebuild patches
51 lines
2.6 KiB
Diff
51 lines
2.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Mon, 6 Apr 2020 17:39:25 -0700
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Subject: [PATCH] Reduce memory footprint of NBTTagCompound
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Fastutil maps are going to have a lower memory footprint - which
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is important because we clone chunk data after reading it for safety.
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So, reduce the impact of the clone on GC.
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diff --git a/src/main/java/net/minecraft/nbt/CompoundTag.java b/src/main/java/net/minecraft/nbt/CompoundTag.java
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index c77a6bb6885ffaaa4d9e1aa9d4770d5e847a590b..135530bc9d7ecd0348ace6474f4ca6d2e1bad283 100644
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--- a/src/main/java/net/minecraft/nbt/CompoundTag.java
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+++ b/src/main/java/net/minecraft/nbt/CompoundTag.java
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@@ -50,7 +50,7 @@ public class CompoundTag implements Tag {
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private static CompoundTag loadCompound(DataInput input, NbtAccounter tracker) throws IOException {
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tracker.accountBytes(48L);
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- Map<String, Tag> map = Maps.newHashMap();
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+ it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<String, Tag> map = new it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<>(8, 0.8f); // Paper - reduce memory footprint of NBTTagCompound
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byte b;
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while((b = input.readByte()) != 0) {
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@@ -171,7 +171,7 @@ public class CompoundTag implements Tag {
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}
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public CompoundTag() {
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- this(Maps.newHashMap());
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+ this(new it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<>(8, 0.8f)); // Paper - reduce memory footprint of NBTTagCompound
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}
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@Override
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@@ -490,8 +490,16 @@ public class CompoundTag implements Tag {
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@Override
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public CompoundTag copy() {
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- Map<String, Tag> map = Maps.newHashMap(Maps.transformValues(this.tags, Tag::copy));
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- return new CompoundTag(map);
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+ // Paper start - reduce memory footprint of NBTTagCompound
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+ it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<String, Tag> ret = new it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap<>(this.tags.size(), 0.8f);
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+ java.util.Iterator<java.util.Map.Entry<String, Tag>> iterator = (this.tags instanceof it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap) ? ((it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap)this.tags).object2ObjectEntrySet().fastIterator() : this.tags.entrySet().iterator();
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+ while (iterator.hasNext()) {
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+ Map.Entry<String, Tag> entry = iterator.next();
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+ ret.put(entry.getKey(), entry.getValue().copy());
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+ }
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+
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+ return new CompoundTag(ret);
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+ // Paper end - reduce memory footprint of NBTTagCompound
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}
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@Override
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