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69 lines
2.1 KiB
Diff
69 lines
2.1 KiB
Diff
From b23159e3fa9188ca186874d1ae2cabe634d0afc6 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/server/RegistryID.java b/src/main/java/net/minecraft/server/RegistryID.java
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index e15d28671..e8a48b9a4 100644
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--- a/src/main/java/net/minecraft/server/RegistryID.java
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+++ b/src/main/java/net/minecraft/server/RegistryID.java
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@@ -14,12 +14,14 @@ public class RegistryID<K> implements Registry<K> {
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private K[] d;
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private int e;
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private int f;
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+ private java.util.BitSet usedIds; // Paper
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public RegistryID(int i) {
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i = (int) ((float) i / 0.8F);
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this.b = (K[]) (new Object[i]); // Paper - decompile fix
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this.c = new int[i];
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this.d = (K[]) (new Object[i]); // Paper - decompile fix
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+ this.usedIds = new java.util.BitSet(); // Paper
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}
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public int getId(@Nullable K k0) {
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@@ -44,9 +46,14 @@ public class RegistryID<K> implements Registry<K> {
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}
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private int c() {
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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.e = this.usedIds.nextClearBit(0);
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+ // Paper end
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return this.e;
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}
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@@ -60,6 +67,7 @@ public class RegistryID<K> implements Registry<K> {
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this.d = (K[]) (new Object[i]); // Paper - decompile fix
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this.e = 0;
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this.f = 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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@@ -85,6 +93,7 @@ public class RegistryID<K> implements Registry<K> {
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this.b[k] = k0;
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this.c[k] = i;
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this.d[i] = k0;
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+ this.usedIds.set(i); // Paper
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++this.f;
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if (i == this.e) {
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++this.e;
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@@ -149,6 +158,7 @@ public class RegistryID<K> implements Registry<K> {
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Arrays.fill(this.d, (Object) null);
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this.e = 0;
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this.f = 0;
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+ this.usedIds.clear(); // Paper
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}
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public int b() {
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--
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2.21.0
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