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119 lines
6.5 KiB
Diff
119 lines
6.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Tue, 5 Apr 2016 21:38:58 -0400
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Subject: [PATCH] Optimize DataBits
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Remove Debug checks as these are super hot and causing noticeable hits
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Before: http://i.imgur.com/nQsMzAE.png
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After: http://i.imgur.com/nJ46crB.png
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Optimize redundant converting of static fields into an unsigned long each call by precomputing it in ctor
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diff --git a/src/main/java/net/minecraft/util/SimpleBitStorage.java b/src/main/java/net/minecraft/util/SimpleBitStorage.java
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index f677cc252d5510a2365e73dc42bd266e56115e83..18d8f3114831310c5f10da43d4333849d4eb6cae 100644
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--- a/src/main/java/net/minecraft/util/SimpleBitStorage.java
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+++ b/src/main/java/net/minecraft/util/SimpleBitStorage.java
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@@ -11,8 +11,8 @@ public class SimpleBitStorage implements BitStorage {
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private final long mask;
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private final int size;
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private final int valuesPerLong;
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- private final int divideMul;
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- private final int divideAdd;
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+ private final int divideMul; private final long divideMulUnsigned; // Paper - Perf: Optimize SimpleBitStorage; referenced in b(int) with 2 Integer.toUnsignedLong calls
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+ private final int divideAdd; private final long divideAddUnsigned; // Paper - Perf: Optimize SimpleBitStorage
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private final int divideShift;
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public SimpleBitStorage(int elementBits, int size, int[] data) {
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@@ -56,8 +56,8 @@ public class SimpleBitStorage implements BitStorage {
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this.mask = (1L << elementBits) - 1L;
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this.valuesPerLong = (char)(64 / elementBits);
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int i = 3 * (this.valuesPerLong - 1);
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- this.divideMul = MAGIC[i + 0];
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- this.divideAdd = MAGIC[i + 1];
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+ this.divideMul = MAGIC[i + 0]; this.divideMulUnsigned = Integer.toUnsignedLong(this.divideMul); // Paper - Perf: Optimize SimpleBitStorage
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+ this.divideAdd = MAGIC[i + 1]; this.divideAddUnsigned = Integer.toUnsignedLong(this.divideAdd); // Paper - Perf: Optimize SimpleBitStorage
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this.divideShift = MAGIC[i + 2];
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int j = (size + this.valuesPerLong - 1) / this.valuesPerLong;
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if (data != null) {
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@@ -73,15 +73,15 @@ public class SimpleBitStorage implements BitStorage {
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}
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private int cellIndex(int index) {
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- long l = Integer.toUnsignedLong(this.divideMul);
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- long m = Integer.toUnsignedLong(this.divideAdd);
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- return (int)((long)index * l + m >> 32 >> this.divideShift);
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+ //long l = Integer.toUnsignedLong(this.divideMul); // Paper - Perf: Optimize SimpleBitStorage
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+ //long m = Integer.toUnsignedLong(this.divideAdd); // Paper - Perf: Optimize SimpleBitStorage
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+ return (int) ((long) index * this.divideMulUnsigned + this.divideAddUnsigned >> 32 >> this.divideShift); // Paper - Perf: Optimize SimpleBitStorage
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}
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@Override
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- public int getAndSet(int index, int value) {
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- Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
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- Validate.inclusiveBetween(0L, this.mask, (long)value);
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+ public final int getAndSet(int index, int value) { // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, this.mask, (long)value); // Paper - Perf: Optimize SimpleBitStorage
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int i = this.cellIndex(index);
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long l = this.data[i];
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int j = (index - i * this.valuesPerLong) * this.bits;
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@@ -91,9 +91,9 @@ public class SimpleBitStorage implements BitStorage {
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}
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@Override
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- public void set(int index, int value) {
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- Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
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- Validate.inclusiveBetween(0L, this.mask, (long)value);
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+ public final void set(int index, int value) { // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, this.mask, (long)value); // Paper - Perf: Optimize SimpleBitStorage
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int i = this.cellIndex(index);
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long l = this.data[i];
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int j = (index - i * this.valuesPerLong) * this.bits;
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@@ -101,8 +101,8 @@ public class SimpleBitStorage implements BitStorage {
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}
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@Override
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- public int get(int index) {
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- Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
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+ public final int get(int index) { // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); - Perf: Optimize SimpleBitStorage
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int i = this.cellIndex(index);
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long l = this.data[i];
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int j = (index - i * this.valuesPerLong) * this.bits;
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diff --git a/src/main/java/net/minecraft/util/ZeroBitStorage.java b/src/main/java/net/minecraft/util/ZeroBitStorage.java
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index 0710c72441c832a93275f3f9bd9dd7643dc0f229..b7a3f15dc1ed9e9322a86921052984c7cbd3262a 100644
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--- a/src/main/java/net/minecraft/util/ZeroBitStorage.java
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+++ b/src/main/java/net/minecraft/util/ZeroBitStorage.java
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@@ -13,21 +13,21 @@ public class ZeroBitStorage implements BitStorage {
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}
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@Override
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- public int getAndSet(int index, int value) {
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- Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
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- Validate.inclusiveBetween(0L, 0L, (long)value);
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+ public final int getAndSet(int index, int value) { // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, 0L, (long)value); // Paper - Perf: Optimize SimpleBitStorage
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return 0;
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}
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@Override
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- public void set(int index, int value) {
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- Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
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- Validate.inclusiveBetween(0L, 0L, (long)value);
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+ public final void set(int index, int value) { // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, 0L, (long)value); // Paper - Perf: Optimize SimpleBitStorage
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}
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@Override
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- public int get(int index) {
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- Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index);
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+ public final int get(int index) { // Paper - Perf: Optimize SimpleBitStorage
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+ //Validate.inclusiveBetween(0L, (long)(this.size - 1), (long)index); // Paper - Perf: Optimize SimpleBitStorage
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return 0;
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}
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