68 lines
2.6 KiB
Diff
68 lines
2.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Andrew Steinborn <git@steinborn.me>
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Date: Mon, 23 Jul 2018 13:08:19 -0400
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Subject: [PATCH] Optimize RegistryID.c()
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This is a frequent hotspot for world loading/saving.
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diff --git a/src/main/java/net/minecraft/util/CrudeIncrementalIntIdentityHashBiMap.java b/src/main/java/net/minecraft/util/CrudeIncrementalIntIdentityHashBiMap.java
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index 66ad412e4368a8615cc66a97ac442c572813a3dd..fa4a2d29b3b4c20d7396e973801d69c4acadddda 100644
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--- a/src/main/java/net/minecraft/util/CrudeIncrementalIntIdentityHashBiMap.java
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+++ b/src/main/java/net/minecraft/util/CrudeIncrementalIntIdentityHashBiMap.java
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@@ -15,12 +15,14 @@ public class CrudeIncrementalIntIdentityHashBiMap<K> implements IdMap<K> {
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private K[] byId;
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private int nextId;
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private int size;
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+ private java.util.BitSet usedIds; // Paper
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public CrudeIncrementalIntIdentityHashBiMap(int size) {
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size = (int) ((float) size / 0.8F);
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this.keys = (K[]) (new Object[size]); // Paper - decompile fix
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this.values = new int[size];
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this.byId = (K[]) (new Object[size]); // Paper - decompile fix
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+ this.usedIds = new java.util.BitSet(); // Paper
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}
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// Paper start - decompile fix
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@@ -52,9 +54,14 @@ public class CrudeIncrementalIntIdentityHashBiMap<K> implements IdMap<K> {
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}
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private int nextId() {
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- while (this.nextId < this.byId.length && this.byId[this.nextId] != null) {
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- ++this.nextId;
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+ // Paper start
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+ /*
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+ while (this.e < this.d.length && this.d[this.e] != null) {
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+ ++this.e;
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}
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+ */
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+ this.nextId = this.usedIds.nextClearBit(0);
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+ // Paper end
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return this.nextId;
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}
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@@ -68,6 +75,7 @@ public class CrudeIncrementalIntIdentityHashBiMap<K> implements IdMap<K> {
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this.byId = (K[]) (new Object[newSize]); // Paper - decompile fix
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this.nextId = 0;
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this.size = 0;
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+ this.usedIds.clear(); // Paper
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for (int j = 0; j < ak.length; ++j) {
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if (ak[j] != null) {
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@@ -93,6 +101,7 @@ public class CrudeIncrementalIntIdentityHashBiMap<K> implements IdMap<K> {
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this.keys[k] = value;
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this.values[k] = id;
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this.byId[id] = value;
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+ this.usedIds.set(id); // Paper
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++this.size;
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if (id == this.nextId) {
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++this.nextId;
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@@ -157,6 +166,7 @@ public class CrudeIncrementalIntIdentityHashBiMap<K> implements IdMap<K> {
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Arrays.fill(this.byId, (Object) null);
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this.nextId = 0;
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this.size = 0;
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+ this.usedIds.clear(); // Paper
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}
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public int size() {
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