papermc/Spigot-Server-Patches/0303-Optimize-RegistryID.c.patch
Aikar d089acb3bd
Switch to using ForgeFlower for Paper Only mc-dev imports
ForgeFlower is better than Spigots FernFlower at decompiling the source.

However, in order to maintain the CraftBukkit patches, we must keep
using spigots for the primary.

However, for any file that we import on top of Spigots imported files
there is nothing stopping us from using better decompiled files.

So these changes will use ForgeFlower to maintain a better set of
decomped files, so anything we add on top of Paper can start off
in a better spot.
2018-08-31 23:47:57 -04:00

68 lines
2.1 KiB
Diff

From b30fb91663c75adb7a5138e6f03a70c63d93c0f6 Mon Sep 17 00:00:00 2001
From: Andrew Steinborn <git@steinborn.me>
Date: Mon, 23 Jul 2018 13:08:19 -0400
Subject: [PATCH] Optimize RegistryID.c()
This is a frequent hotspot for world loading/saving.
diff --git a/src/main/java/net/minecraft/server/RegistryID.java b/src/main/java/net/minecraft/server/RegistryID.java
index d03ac0e70c..9242999f70 100644
--- a/src/main/java/net/minecraft/server/RegistryID.java
+++ b/src/main/java/net/minecraft/server/RegistryID.java
@@ -13,12 +13,14 @@ public class RegistryID<K> implements Registry<K> {
private K[] d;
private int e;
private int f;
+ private java.util.BitSet usedIds; // Paper
public RegistryID(int i) {
i = (int)((float)i / 0.8F);
this.b = (K[])(new Object[i]);
this.c = new int[i];
this.d = (K[])(new Object[i]);
+ this.usedIds = new java.util.BitSet(); // Paper
}
public int getId(@Nullable K object) {
@@ -41,9 +43,14 @@ public class RegistryID<K> implements Registry<K> {
}
private int c() {
+ // Paper start
+ /*
while(this.e < this.d.length && this.d[this.e] != null) {
++this.e;
}
+ */
+ this.e = this.usedIds.nextClearBit(0);
+ // Paper end
return this.e;
}
@@ -56,6 +63,7 @@ public class RegistryID<K> implements Registry<K> {
this.d = (K[])(new Object[i]);
this.e = 0;
this.f = 0;
+ this.usedIds.clear(); // Paper
for(int j = 0; j < aobject.length; ++j) {
if (aobject[j] != null) {
@@ -80,6 +88,7 @@ public class RegistryID<K> implements Registry<K> {
this.b[l] = object;
this.c[l] = i;
this.d[i] = object;
+ this.usedIds.set(i); // Paper
++this.f;
if (i == this.e) {
++this.e;
@@ -140,6 +149,7 @@ public class RegistryID<K> implements Registry<K> {
Arrays.fill(this.d, (Object)null);
this.e = 0;
this.f = 0;
+ this.usedIds.clear(); // Paper
}
public int b() {
--
2.18.0