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da9d110d5b
This patch does not appear to be doing anything useful, and may hide errors. Currently, the save logic does not run through this path either so it did not do anything. Additionally, properly implement support for handling RegionFileSizeException in Moonrise.
118 lines
6.5 KiB
Diff
118 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 dea4f322f750a0a09407fdb48d5d6e809dfe8ed4..9f438d9c6eb05e43d24e4af68188a3d4c46a938c 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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@@ -204,8 +204,8 @@ 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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@@ -248,8 +248,8 @@ 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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@@ -264,15 +264,15 @@ 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) (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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@@ -282,9 +282,9 @@ 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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@@ -292,8 +292,8 @@ 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); // 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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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 8dd5a5899e9b5d8b3f1a6064dd7c1580313da69e..50040c497a819cd1229042ab3cb057d34a32cacc 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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