geforkt von Mirrors/Paper
0708fa363b
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing CraftBukkit Changes:eb2e6578
SPIGOT-5116: Fix concurrent modification exception inside ChunkMapDistance989f9b3d
SPIGOT-4849: Fix server crash when accessing chunks during chunk load/unload/populate eventsf554183c
SPIGOT-5171: Don't fire PlayerTeleportEvent if not actually moving2349feb8
SPIGOT-5163: Cancelling PlayerBucketFillEvent visually removes the targeted block Spigot Changes: 9a643a6a Remove DataWatcher Locking
209 Zeilen
8.3 KiB
Diff
209 Zeilen
8.3 KiB
Diff
From 100f4c3bee91ea3350a9f2a513493af2cb3bbd5b Mon Sep 17 00:00:00 2001
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From: Techcable <Techcable@outlook.com>
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Date: Wed, 30 Nov 2016 20:56:58 -0600
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Subject: [PATCH] Speedup BlockPos by fixing inlining
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Normally the JVM can inline virtual getters by having two sets of code, one is the 'optimized' code and the other is the 'deoptimized' code.
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If a single type is used 99% of the time, then its worth it to inline, and to revert to 'deoptimized' the 1% of the time we encounter other types.
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But if two types are encountered commonly, then the JVM can't inline them both, and the call overhead remains.
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This scenario also occurs with BlockPos and MutableBlockPos.
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The variables in BlockPos are final, so MutableBlockPos can't modify them.
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MutableBlockPos fixes this by adding custom mutable variables, and overriding the getters to access them.
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This approach with utility methods that operate on MutableBlockPos and BlockPos.
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Specific examples are BlockPosition.up(), and World.isValidLocation().
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It makes these simple methods much slower than they need to be.
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This should result in an across the board speedup in anything that accesses blocks or does logic with positions.
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This is based upon conclusions drawn from inspecting the assenmbly generated bythe JIT compiler on my mircorbenchmarks.
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They had 'callq' (invoke) instead of 'mov' (get from memory) instructions.
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diff --git a/src/main/java/net/minecraft/server/BaseBlockPosition.java b/src/main/java/net/minecraft/server/BaseBlockPosition.java
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index 7cb46d7a9..e96428bb2 100644
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--- a/src/main/java/net/minecraft/server/BaseBlockPosition.java
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+++ b/src/main/java/net/minecraft/server/BaseBlockPosition.java
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@@ -7,22 +7,22 @@ import javax.annotation.concurrent.Immutable;
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public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
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public static final BaseBlockPosition ZERO = new BaseBlockPosition(0, 0, 0);
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- private final int a;
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- private final int b;
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- private final int c;
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// Paper start
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+ protected int x;
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+ protected int y;
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+ protected int z;
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public boolean isValidLocation() {
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- return a >= -30000000 && c >= -30000000 && a < 30000000 && c < 30000000 && b >= 0 && b < 256;
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+ return x >= -30000000 && z >= -30000000 && x < 30000000 && z < 30000000 && y >= 0 && y < 256;
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}
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public boolean isInvalidYLocation() {
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- return b < 0 || b >= 256;
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+ return y < 0 || y >= 256;
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}
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// Paper end
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public BaseBlockPosition(int i, int j, int k) {
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- this.a = i;
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- this.b = j;
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- this.c = k;
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+ this.x = i;
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+ this.y = j;
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+ this.z = k;
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}
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public BaseBlockPosition(double d0, double d1, double d2) {
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@@ -49,24 +49,26 @@ public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
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return this.getY() == baseblockposition.getY() ? (this.getZ() == baseblockposition.getZ() ? this.getX() - baseblockposition.getX() : this.getZ() - baseblockposition.getZ()) : this.getY() - baseblockposition.getY();
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}
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- public int getX() {
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- return this.a;
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+ // Paper start
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+ public final int getX() {
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+ return this.x;
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}
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public int getY() {
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- return this.b;
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+ return this.y;
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}
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public int getZ() {
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- return this.c;
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+ return this.z;
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}
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+ // Paper end
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public BaseBlockPosition d(BaseBlockPosition baseblockposition) {
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return new BaseBlockPosition(this.getY() * baseblockposition.getZ() - this.getZ() * baseblockposition.getY(), this.getZ() * baseblockposition.getX() - this.getX() * baseblockposition.getZ(), this.getX() * baseblockposition.getY() - this.getY() * baseblockposition.getX());
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}
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public boolean a(BaseBlockPosition baseblockposition, double d0) {
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- return this.distanceSquared((double) baseblockposition.a, (double) baseblockposition.b, (double) baseblockposition.c, false) < d0 * d0;
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+ return this.distanceSquared((double) baseblockposition.x, (double) baseblockposition.y, (double) baseblockposition.z, false) < d0 * d0; // Paper
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}
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public boolean a(IPosition iposition, double d0) {
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@@ -91,9 +93,9 @@ public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
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}
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public int n(BaseBlockPosition baseblockposition) {
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- float f = (float) Math.abs(baseblockposition.getX() - this.a);
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- float f1 = (float) Math.abs(baseblockposition.getY() - this.b);
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- float f2 = (float) Math.abs(baseblockposition.getZ() - this.c);
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+ float f = (float) Math.abs(baseblockposition.getX() - this.x); // Paper
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+ float f1 = (float) Math.abs(baseblockposition.getY() - this.y); // Paper
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+ float f2 = (float) Math.abs(baseblockposition.getZ() - this.z); // Paper
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return (int) (f + f1 + f2);
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}
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diff --git a/src/main/java/net/minecraft/server/BlockPosition.java b/src/main/java/net/minecraft/server/BlockPosition.java
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index 2eabaaeba..04f754d2c 100644
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--- a/src/main/java/net/minecraft/server/BlockPosition.java
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+++ b/src/main/java/net/minecraft/server/BlockPosition.java
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@@ -335,11 +335,12 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
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}
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public static class MutableBlockPosition extends BlockPosition {
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-
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+ // Paper start - comment out
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+ /*
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protected int b;
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protected int c;
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protected int d;
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- // Paper start
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+
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@Override
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public boolean isValidLocation() {
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return b >= -30000000 && d >= -30000000 && b < 30000000 && d < 30000000 && c >= 0 && c < 256;
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@@ -348,6 +349,7 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
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public boolean isInvalidYLocation() {
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return c < 0 || c >= 256;
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}
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+ */
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// Paper end
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public MutableBlockPosition() {
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@@ -359,10 +361,13 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
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}
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public MutableBlockPosition(int i, int j, int k) {
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- super(0, 0, 0);
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+ // Paper start
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+ super(i, j, k);
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+ /*
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this.b = i;
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this.c = j;
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- this.d = k;
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+ this.d = k;*/
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+ // Paper end
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}
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public MutableBlockPosition(double d0, double d1, double d2) {
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@@ -389,6 +394,9 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
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return super.a(enumblockrotation).immutableCopy();
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}
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+
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+ /*
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+ // Paper start - use parent getters
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@Override
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public int getX() {
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return this.b;
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@@ -402,13 +410,16 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
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@Override
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public int getZ() {
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return this.d;
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- }
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+ }*/
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+ // Paper end
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public BlockPosition.MutableBlockPosition setValues(int i, int j, int k) { return d(i, j, k);} // Paper - OBFHELPER
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public BlockPosition.MutableBlockPosition d(int i, int j, int k) {
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- this.b = i;
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- this.c = j;
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- this.d = k;
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+ // Paper start - use xyz
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+ this.x = i;
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+ this.y = j;
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+ this.z = k;
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+ // Paper end
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return this;
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}
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@@ -438,23 +449,23 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
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}
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public BlockPosition.MutableBlockPosition c(EnumDirection enumdirection, int i) {
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- return this.d(this.b + enumdirection.getAdjacentX() * i, this.c + enumdirection.getAdjacentY() * i, this.d + enumdirection.getAdjacentZ() * i);
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+ return this.d(this.x + enumdirection.getAdjacentX() * i, this.y + enumdirection.getAdjacentY() * i, this.z + enumdirection.getAdjacentZ() * i);
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}
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public BlockPosition.MutableBlockPosition e(int i, int j, int k) {
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- return this.d(this.b + i, this.c + j, this.d + k);
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+ return this.d(this.x + i, this.y + j, this.z + k);
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}
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public void o(int i) {
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- this.b = i;
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+ this.x = i; // Paper change to x
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}
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public void p(int i) {
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- this.c = i;
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+ this.y = i; // Paper change to y
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}
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public void q(int i) {
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- this.d = i;
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+ this.z = i; // Paper change to z
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}
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@Override
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--
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2.22.0
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