PaperMC/patches/server/0080-Optimize-DataBits.patch
Jason bc127ea819
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#6222)
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:
eec4aab0 SPIGOT-6657: Add getPlayer to SheepDyeWoolEvent
205213c6 SPIGOT-6656: CauldronLevelChangeEvent is not fired correctly when dripstone fills the cauldron

CraftBukkit Changes:
b8c522d5 SPIGOT-6657: Add getPlayer to SheepDyeWoolEvent
f04a77dc SPIGOT-6656: CauldronLevelChangeEvent is not fired correctly when dripstone fills the cauldron
d1dbcebc SPIGOT-6653: Canceling snow bucket placement removes snow from bucket
4f34a67b #891: Fix scheduler task ID overflow and duplication issues

Spigot Changes:
d03d7f12 BUILDTOOLS-604: Rebuild patches
2021-07-18 09:41:53 +02:00

82 lines
4.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 5 Apr 2016 21:38:58 -0400
Subject: [PATCH] Optimize DataBits
Remove Debug checks as these are super hot and causing noticeable hits
Before: http://i.imgur.com/nQsMzAE.png
After: http://i.imgur.com/nJ46crB.png
Optimize redundant converting of static fields into an unsigned long each call by precomputing it in ctor
diff --git a/src/main/java/net/minecraft/util/BitStorage.java b/src/main/java/net/minecraft/util/BitStorage.java
index 65bd706ca96f5c0ec4573da9fb144fb51d2de919..07e1374ac3430662edd9f585e59b785e329f0820 100644
--- a/src/main/java/net/minecraft/util/BitStorage.java
+++ b/src/main/java/net/minecraft/util/BitStorage.java
@@ -12,8 +12,8 @@ public class BitStorage {
private final long mask;
private final int size;
private final int valuesPerLong;
- private final int divideMul;
- private final int divideAdd;
+ private final int divideMul; private final long divideMulUnsigned; // Paper - referenced in b(int) with 2 Integer.toUnsignedLong calls
+ private final int divideAdd; private final long divideAddUnsigned; // Paper
private final int divideShift;
public BitStorage(int elementBits, int size) {
@@ -27,8 +27,8 @@ public class BitStorage {
this.mask = (1L << elementBits) - 1L;
this.valuesPerLong = (char)(64 / elementBits);
int i = 3 * (this.valuesPerLong - 1);
- this.divideMul = MAGIC[i + 0];
- this.divideAdd = MAGIC[i + 1];
+ this.divideMul = BitStorage.MAGIC[i + 0]; this.divideMulUnsigned = Integer.toUnsignedLong(this.divideMul); // Paper
+ this.divideAdd = BitStorage.MAGIC[i + 1]; this.divideAddUnsigned = Integer.toUnsignedLong(this.divideAdd); // Paper
this.divideShift = MAGIC[i + 2];
int j = (size + this.valuesPerLong - 1) / this.valuesPerLong;
if (storage != null) {
@@ -44,14 +44,14 @@ public class BitStorage {
}
private int cellIndex(int index) {
- long l = Integer.toUnsignedLong(this.divideMul);
- long m = Integer.toUnsignedLong(this.divideAdd);
- return (int)((long)index * l + m >> 32 >> this.divideShift);
+ //long l = Integer.toUnsignedLong(this.divideMul); // Paper
+ //long m = Integer.toUnsignedLong(this.divideAdd); // Paper
+ return (int) ((long) index * this.divideMulUnsigned + this.divideAddUnsigned >> 32 >> this.divideShift); // Paper
}
- public int getAndSet(int index, int value) {
- Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
- Validate.inclusiveBetween(0L, this.mask, (long)value);
+ public final int getAndSet(int index, int value) { // Paper - make final for inline
+ //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper
+ //Validate.inclusiveBetween(0L, this.mask, (long)value); // Paper
int i = this.cellIndex(index);
long l = this.data[i];
int j = (index - i * this.valuesPerLong) * this.bits;
@@ -60,17 +60,17 @@ public class BitStorage {
return k;
}
- public void set(int index, int value) {
- Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
- Validate.inclusiveBetween(0L, this.mask, (long)value);
+ public final void set(int index, int value) { // Paper - make final for inline
+ //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper
+ //Validate.inclusiveBetween(0L, this.mask, (long)value); // Paper
int i = this.cellIndex(index);
long l = this.data[i];
int j = (index - i * this.valuesPerLong) * this.bits;
this.data[i] = l & ~(this.mask << j) | ((long)value & this.mask) << j;
}
- public int get(int index) {
- Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
+ public final int get(int index) { // Paper - make final for inline
+ //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
int i = this.cellIndex(index);
long l = this.data[i];
int j = (index - i * this.valuesPerLong) * this.bits;