mirror of
https://github.com/PaperMC/Paper.git
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4e958e229f
Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com> Co-authored-by: zml <zml@stellardrift.ca> Co-authored-by: Mariell Hoversholm <proximyst@proximyst.com>
84 lines
3.5 KiB
Diff
84 lines
3.5 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/server/DataBits.java b/src/main/java/net/minecraft/server/DataBits.java
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index 53e7bac2f7a99238f509bb0f871ebed103fda568..2a01a48ad347fb123492218a60404b034cfcfbc5 100644
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--- a/src/main/java/net/minecraft/server/DataBits.java
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+++ b/src/main/java/net/minecraft/server/DataBits.java
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@@ -12,8 +12,8 @@ public class DataBits {
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private final long d;
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private final int e;
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private final int f;
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- private final int g;
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- private final int h;
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+ private final int g;private final long g_unsigned; // Paper - referenced in b(int) with 2 Integer.toUnsignedLong calls
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+ private final int h;private final long h_unsigned; // Paper
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private final int i;
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public DataBits(int i, int j) {
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@@ -28,8 +28,8 @@ public class DataBits {
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this.f = (char) (64 / i);
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int k = 3 * (this.f - 1);
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- this.g = DataBits.a[k + 0];
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- this.h = DataBits.a[k + 1];
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+ this.g = DataBits.a[k + 0]; this.g_unsigned = Integer.toUnsignedLong(this.g); // Paper
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+ this.h = DataBits.a[k + 1]; this.h_unsigned = Integer.toUnsignedLong(this.h); // Paper
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this.i = DataBits.a[k + 2];
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int l = (j + this.f - 1) / this.f;
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@@ -46,15 +46,15 @@ public class DataBits {
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}
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private int b(int i) {
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- long j = Integer.toUnsignedLong(this.g);
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- long k = Integer.toUnsignedLong(this.h);
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+ //long j = Integer.toUnsignedLong(this.g); // Paper
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+ //long k = Integer.toUnsignedLong(this.h); // Paper
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- return (int) ((long) i * j + k >> 32 >> this.i);
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+ return (int) ((long) i * this.g_unsigned + this.h_unsigned >> 32 >> this.i); // Paper
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}
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- public int a(int i, int j) {
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- Validate.inclusiveBetween(0L, (long) (this.e - 1), (long) i);
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- Validate.inclusiveBetween(0L, this.d, (long) j);
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+ public final int a(int i, int j) { // Paper - make final for inline
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+ //Validate.inclusiveBetween(0L, (long) (this.e - 1), (long) i); // Paper
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+ //Validate.inclusiveBetween(0L, this.d, (long) j); // Paper
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int k = this.b(i);
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long l = this.b[k];
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int i1 = (i - k * this.f) * this.c;
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@@ -64,9 +64,9 @@ public class DataBits {
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return j1;
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}
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- public void b(int i, int j) {
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- Validate.inclusiveBetween(0L, (long) (this.e - 1), (long) i);
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- Validate.inclusiveBetween(0L, this.d, (long) j);
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+ public final void b(int i, int j) { // Paper - make final for inline
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+ //Validate.inclusiveBetween(0L, (long) (this.e - 1), (long) i); // Paper
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+ //Validate.inclusiveBetween(0L, this.d, (long) j); // Paper
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int k = this.b(i);
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long l = this.b[k];
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int i1 = (i - k * this.f) * this.c;
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@@ -74,8 +74,8 @@ public class DataBits {
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this.b[k] = l & ~(this.d << i1) | ((long) j & this.d) << i1;
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}
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- public int a(int i) {
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- Validate.inclusiveBetween(0L, (long) (this.e - 1), (long) i);
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+ public final int a(int i) { // Paper - make final for inline
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+ //Validate.inclusiveBetween(0L, (long) (this.e - 1), (long) i); // Paper
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int j = this.b(i);
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long k = this.b[j];
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int l = (i - j * this.f) * this.c;
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