mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-29 15:49:00 +01:00
a161d480b4
These are super hot and causing noticeable hits Before: http://i.imgur.com/nQsMzAE.png After: http://i.imgur.com/nJ46crB.png
56 lines
No EOL
2.8 KiB
Diff
56 lines
No EOL
2.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Aikar <aikar@aikar.co>
|
|
Date: Wed, 30 Mar 2016 02:13:24 -0400
|
|
Subject: [PATCH] Use Optimized Collections
|
|
|
|
Swap out CraftBukkit LongObjectHashMap with Long2ObjectOpenHashMap
|
|
Swap out Integer key HashMap for a Int2ObjectOpenHashMap For ChunkProviderServer
|
|
|
|
Amaranth, the creator of LongObjectHashMap, tested it vs fastutil and determined fastutil to be 3x faster
|
|
and could not create anything faster than fastutil.
|
|
|
|
These collections are super fast as seen
|
|
http://java-performance.info/hashmap-overview-jdk-fastutil-goldman-sachs-hppc-koloboke-trove-january-2015/
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
|
|
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
|
|
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
|
|
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
|
|
@@ -0,0 +0,0 @@ import java.util.Iterator;
|
|
import java.util.List;
|
|
|
|
import com.destroystokyo.paper.exception.ServerInternalException;
|
|
+import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
|
|
import org.apache.logging.log4j.LogManager;
|
|
import org.apache.logging.log4j.Logger;
|
|
|
|
@@ -0,0 +0,0 @@ public class ChunkProviderServer implements IChunkProvider {
|
|
private final IChunkLoader chunkLoader;
|
|
// Paper start
|
|
protected Chunk lastChunkByPos = null;
|
|
- public LongObjectHashMap<Chunk> chunks = new LongObjectHashMap<Chunk>() {
|
|
+ public Long2ObjectOpenHashMap<Chunk> chunks = new Long2ObjectOpenHashMap<Chunk>() {
|
|
@Override
|
|
public Chunk get(long key) {
|
|
if (lastChunkByPos != null && key == lastChunkByPos.chunkKey) {
|
|
diff --git a/src/main/java/net/minecraft/server/DataWatcher.java b/src/main/java/net/minecraft/server/DataWatcher.java
|
|
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
|
|
--- a/src/main/java/net/minecraft/server/DataWatcher.java
|
|
+++ b/src/main/java/net/minecraft/server/DataWatcher.java
|
|
@@ -0,0 +0,0 @@ import java.util.List;
|
|
import java.util.Map;
|
|
import java.util.concurrent.locks.ReadWriteLock;
|
|
import java.util.concurrent.locks.ReentrantReadWriteLock;
|
|
+import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap; // Paper
|
|
import org.apache.commons.lang3.ObjectUtils;
|
|
|
|
public class DataWatcher {
|
|
|
|
private static final Map<Class<? extends Entity>, Integer> a = Maps.newHashMap();
|
|
private final Entity b;
|
|
- private final Map<Integer, DataWatcher.Item<?>> c = Maps.newHashMap();
|
|
+ private final Map<Integer, DataWatcher.Item<?>> c = new Int2ObjectOpenHashMap<>(); // Paper
|
|
private final ReadWriteLock d = new ReentrantReadWriteLock();
|
|
private boolean e = true;
|
|
private boolean f;
|
|
--
|