mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-29 15:49:00 +01:00
82 lines
4.1 KiB
Diff
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 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
|
|
--- a/src/main/java/net/minecraft/util/BitStorage.java
|
|
+++ b/src/main/java/net/minecraft/util/BitStorage.java
|
|
@@ -0,0 +0,0 @@ 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) {
|
|
@@ -0,0 +0,0 @@ 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) {
|
|
@@ -0,0 +0,0 @@ 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;
|
|
@@ -0,0 +0,0 @@ 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;
|