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Speedup BlockPos by fixing inlining

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Techcable 2016-11-30 20:57:02 -06:00 committed by Zach Brown
parent dfdd4e3334
commit 33e453fcfd
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GPG Key ID: CC9DA35FC5450B76
3 changed files with 167 additions and 5 deletions
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4
Spigot-Server-Patches/0092-Optimize-isValidLocation-getType-and-getBlockData-fo.patch
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@ -1,4 +1,4 @@
From 0c1d747df007846e209ed5f0531dd51d59fad7fc Mon Sep 17 00:00:00 2001
From 9b31029333fb85ecd0627b4c69982c9b562987ec Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 3 Mar 2016 02:07:55 -0600
Subject: [PATCH] Optimize isValidLocation, getType and getBlockData for inling
@ -98,7 +98,7 @@ index 3d784d0..afdc4a7 100644
private NibbleArray skyLight;
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 223250f..14ac6d2 100644
index ecd2d26..224e4c9 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -273,12 +273,12 @@ public abstract class World implements IBlockAccess {

6
Spigot-Server-Patches/0150-Make-entities-look-for-hoppers.patch
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@ -1,4 +1,4 @@
From 0d78e997b13f2330eb8721d24bde7a39dd0182a9 Mon Sep 17 00:00:00 2001
From 56aca6078929415387fb88359401d9259e3180de Mon Sep 17 00:00:00 2001
From: Techcable <Techcable@outlook.com>
Date: Sat, 18 Jun 2016 01:01:37 -0500
Subject: [PATCH] Make entities look for hoppers
@ -261,7 +261,7 @@ index 804215a..e830d83 100644
+ double G(); default double getZ() { return G(); } // Paper - OBFHELPER
}
diff --git a/src/main/java/net/minecraft/server/TileEntityHopper.java b/src/main/java/net/minecraft/server/TileEntityHopper.java
index 4ebcf47..41cc568 100644
index 7154776..f8339ad 100644
--- a/src/main/java/net/minecraft/server/TileEntityHopper.java
+++ b/src/main/java/net/minecraft/server/TileEntityHopper.java
@@ -122,6 +122,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
@ -390,5 +390,5 @@ index 4ebcf47..41cc568 100644
if (!list.isEmpty()) {
--
2.10.2.windows.1
2.10.2

162
Spigot-Server-Patches/0184-Speedup-BlockPos-by-fixing-inlining.patch Normal file
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@ -0,0 +1,162 @@
From 3e498c8197d48f4f8cdb709c7f7e980a54ae9af1 Mon Sep 17 00:00:00 2001
From: Techcable <Techcable@outlook.com>
Date: Wed, 30 Nov 2016 20:56:58 -0600
Subject: [PATCH] Speedup BlockPos by fixing inlining
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.
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.
But if two types are encountered commonly, then the JVM can't inline them both, and the call overhead remains.
This scenario also occurs with BlockPos and MutableBlockPos.
The variables in BlockPos are final, so MutableBlockPos can't modify them.
MutableBlockPos fixes this by adding custom mutable variables, and overriding the getters to access them.
This approach with utility methods that operate on MutableBlockPos and BlockPos.
Specific examples are BlockPosition.up(), and World.isValidLocation().
It makes these simple methods much slower than they need to be.
This should result in an across the board speedup in anything that accesses blocks or does logic with positions.
This is based upon conclusions drawn from inspecting the assenmbly generated bythe JIT compiler on my mircorbenchmarks.
They had 'callq' (invoke) instead of 'mov' (get from memory) instructions.
diff --git a/src/main/java/net/minecraft/server/BaseBlockPosition.java b/src/main/java/net/minecraft/server/BaseBlockPosition.java
index f772c7c..f5dc144 100644
--- a/src/main/java/net/minecraft/server/BaseBlockPosition.java
+++ b/src/main/java/net/minecraft/server/BaseBlockPosition.java
@@ -7,11 +7,12 @@ import javax.annotation.concurrent.Immutable;
public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
public static final BaseBlockPosition ZERO = new BaseBlockPosition(0, 0, 0);
- private final int a;
- private final int b;
- private final int c;
- // Paper start
- public boolean isValidLocation() {
+ // Paper start - Make mutable and protected for MutableBlockPos and PooledBlockPos
+ protected int a;
+ protected int b;
+ protected int c;
+
+ public final boolean isValidLocation() {
return a >= -30000000 && c >= -30000000 && a < 30000000 && c < 30000000 && b >= 0 && b < 256;
}
public boolean isInvalidYLocation() {
@@ -49,17 +50,19 @@ public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
return this.getY() == baseblockposition.getY() ? (this.getZ() == baseblockposition.getZ() ? this.getX() - baseblockposition.getX() : this.getZ() - baseblockposition.getZ()) : this.getY() - baseblockposition.getY();
}
- public int getX() {
+ // Paper start - Only allow a single implementation
+ public final int getX() {
return this.a;
}
- public int getY() {
+ public final int getY() {
return this.b;
}
- public int getZ() {
+ public final int getZ() {
return this.c;
}
+ // Paper end
public BaseBlockPosition d(BaseBlockPosition baseblockposition) {
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());
diff --git a/src/main/java/net/minecraft/server/BlockPosition.java b/src/main/java/net/minecraft/server/BlockPosition.java
index 6c14061..c258331 100644
--- a/src/main/java/net/minecraft/server/BlockPosition.java
+++ b/src/main/java/net/minecraft/server/BlockPosition.java
@@ -254,9 +254,9 @@ public class BlockPosition extends BaseBlockPosition {
}
// Paper end
- this.b.b = i;
- this.b.c = j;
- this.b.d = k;
+ ((BaseBlockPosition) this.b).a = i;
+ ((BaseBlockPosition) this.b).b = j;
+ ((BaseBlockPosition) this.b).c = k;
return this.b;
}
}
@@ -370,6 +370,8 @@ public class BlockPosition extends BaseBlockPosition {
public static class MutableBlockPosition extends BlockPosition {
+ // Paper start - Remove variables
+ /*
protected int b;
protected int c;
protected int d;
@@ -382,6 +384,7 @@ public class BlockPosition extends BaseBlockPosition {
public boolean isInvalidYLocation() {
return c < 0 || c >= 256;
}
+ */
// Paper end
public MutableBlockPosition() {
@@ -394,9 +397,11 @@ public class BlockPosition extends BaseBlockPosition {
public MutableBlockPosition(int i, int j, int k) {
super(0, 0, 0);
- this.b = i;
- this.c = j;
- this.d = k;
+ // Paper start - Modify base position variables
+ ((BaseBlockPosition) this).a = i;
+ ((BaseBlockPosition) this).b = j;
+ ((BaseBlockPosition) this).c = k;
+ // Paper end
}
public BlockPosition a(double d0, double d1, double d2) {
@@ -415,6 +420,8 @@ public class BlockPosition extends BaseBlockPosition {
return super.a(enumblockrotation).h();
}
+ // Paper start - Use superclass methods
+ /*
public int getX() {
return this.b;
}
@@ -426,12 +433,16 @@ public class BlockPosition extends BaseBlockPosition {
public int getZ() {
return this.d;
}
+ */
+ // Paper end
public void setValues(int x, int y, int z) { c(x, y, z); } // Paper - OBFHELPER
public BlockPosition.MutableBlockPosition c(int i, int j, int k) {
- this.b = i;
- this.c = j;
- this.d = k;
+ // Paper start - Modify base position variables
+ ((BaseBlockPosition) this).a = i;
+ ((BaseBlockPosition) this).b = j;
+ ((BaseBlockPosition) this).c = k;
+ // Paper end
return this;
}
@@ -448,11 +459,11 @@ public class BlockPosition extends BaseBlockPosition {
}
public BlockPosition.MutableBlockPosition c(EnumDirection enumdirection, int i) {
- return this.c(this.b + enumdirection.getAdjacentX() * i, this.c + enumdirection.getAdjacentY() * i, this.d + enumdirection.getAdjacentZ() * i);
+ return this.c(this.getX() + enumdirection.getAdjacentX() * i, this.getY() + enumdirection.getAdjacentY() * i, this.getZ() + enumdirection.getAdjacentZ() * i); // Paper - USE THE BLEEPING GETTERS
}
public void p(int i) {
- this.c = i;
+ ((BaseBlockPosition) this).b = i; // Paper - Modify base variable
}
public BlockPosition h() {
--
2.10.2