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Improve LongHash performance - take #2

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Antony Riley 2014-06-09 17:52:31 +10:00 committed by md_5
parent 0dc2b96f20
commit a9bcec2567
1 changed files with 13 additions and 4 deletions
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17
CraftBukkit-Patches/0010-LongHash-Tweaks.patch
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@ -1,19 +1,28 @@
From 0ed4d284bbdfffc523e2c2c731443a31df66de15 Mon Sep 17 00:00:00 2001 From 30dee3aef49042baa1609cb2247927bb5dab4710 Mon Sep 17 00:00:00 2001
From: md_5 <md_5@live.com.au> From: md_5 <md_5@live.com.au>
Date: Fri, 21 Jun 2013 17:13:47 +1000 Date: Fri, 21 Jun 2013 17:13:47 +1000
Subject: [PATCH] LongHash Tweaks Subject: [PATCH] LongHash Tweaks
diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongHash.java b/src/main/java/org/bukkit/craftbukkit/util/LongHash.java diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongHash.java b/src/main/java/org/bukkit/craftbukkit/util/LongHash.java
index 691cafd..9d54472 100644 index 691cafd..7a5801f 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/LongHash.java --- a/src/main/java/org/bukkit/craftbukkit/util/LongHash.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/LongHash.java +++ b/src/main/java/org/bukkit/craftbukkit/util/LongHash.java
@@ -2,7 +2,7 @@ package org.bukkit.craftbukkit.util;
public class LongHash {
public static long toLong(int msw, int lsw) {
- return ((long) msw << 32) + lsw - Integer.MIN_VALUE;
+ return ((long) msw << 32) | (lsw & 0xFFFFFFFFL); // Spigot
}
public static int msw(long l) {
@@ -10,6 +10,6 @@ public class LongHash { @@ -10,6 +10,6 @@ public class LongHash {
} }
public static int lsw(long l) { public static int lsw(long l) {
- return (int) (l & 0xFFFFFFFF) + Integer.MIN_VALUE; - return (int) (l & 0xFFFFFFFF) + Integer.MIN_VALUE;
+ return (int) (l) + Integer.MIN_VALUE; // Spigot - remove redundant & + return (int) (l & 0xFFFFFFFF); // Spigot
} }
} }
diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java b/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java diff --git a/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java b/src/main/java/org/bukkit/craftbukkit/util/LongHashSet.java
@ -220,5 +229,5 @@ index 0000000..9416f6e
+ } + }
+} +}
-- --
1.8.3.2 1.9.1