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Implement Threaded Bulk Chunk Compression. 

This offloads chunk compression to a new thread, which should help with the pauses often seen when teleporting large amounts of players.
This commit is contained in:
md_5 2014-01-28 20:32:37 +11:00
parent 72b48c77af
commit 82cf01b53f
2 changed files with 145 additions and 1 deletions
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45
CraftBukkit-Patches/0002-mc-dev-imports.patch
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@ -1,4 +1,4 @@
From 95e52dc06241d2a34781b0c4258c99d900ea3c44 Mon Sep 17 00:00:00 2001
From 944e2150034a80c046ca0651cdf53d7cdf7e0b7f Mon Sep 17 00:00:00 2001
From: md_5 <md_5@live.com.au>
Date: Sun, 1 Dec 2013 15:10:48 +1100
Subject: [PATCH] mc-dev imports
@ -2077,6 +2077,49 @@ index 0000000..3691094
+ return serverconnection.d;
+ }
+}
diff --git a/src/main/java/net/minecraft/server/ServerConnectionChannel.java b/src/main/java/net/minecraft/server/ServerConnectionChannel.java
new file mode 100644
index 0000000..fb95be4
--- /dev/null
+++ b/src/main/java/net/minecraft/server/ServerConnectionChannel.java
@@ -0,0 +1,37 @@
+package net.minecraft.server;
+
+import net.minecraft.util.io.netty.channel.Channel;
+import net.minecraft.util.io.netty.channel.ChannelException;
+import net.minecraft.util.io.netty.channel.ChannelInitializer;
+import net.minecraft.util.io.netty.channel.ChannelOption;
+import net.minecraft.util.io.netty.handler.timeout.ReadTimeoutHandler;
+
+class ServerConnectionChannel extends ChannelInitializer {
+
+ final ServerConnection a;
+
+ ServerConnectionChannel(ServerConnection serverconnection) {
+ this.a = serverconnection;
+ }
+
+ protected void initChannel(Channel channel) {
+ try {
+ channel.config().setOption(ChannelOption.IP_TOS, Integer.valueOf(24));
+ } catch (ChannelException channelexception) {
+ ;
+ }
+
+ try {
+ channel.config().setOption(ChannelOption.TCP_NODELAY, Boolean.valueOf(false));
+ } catch (ChannelException channelexception1) {
+ ;
+ }
+
+ channel.pipeline().addLast("timeout", new ReadTimeoutHandler(30)).addLast("legacy_query", new LegacyPingHandler(this.a)).addLast("splitter", new PacketSplitter()).addLast("decoder", new PacketDecoder()).addLast("prepender", new PacketPrepender()).addLast("encoder", new PacketEncoder());
+ NetworkManager networkmanager = new NetworkManager(false);
+
+ ServerConnection.a(this.a).add(networkmanager);
+ channel.pipeline().addLast("packet_handler", networkmanager);
+ networkmanager.a((PacketListener) (new HandshakeListener(ServerConnection.b(this.a), networkmanager)));
+ }
+}
diff --git a/src/main/java/net/minecraft/server/ServerStatisticManager.java b/src/main/java/net/minecraft/server/ServerStatisticManager.java
new file mode 100644
index 0000000..2f980cb

101
CraftBukkit-Patches/0104-Implement-Threaded-Bulk-Chunk-Compression.patch Normal file
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@ -0,0 +1,101 @@
From 47f5faa5d3e3a74e8b85100c244001e7d1b8df0f Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Tue, 28 Jan 2014 20:32:07 +1100
Subject: [PATCH] Implement Threaded Bulk Chunk Compression
diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
index 30bf8a7..178a4ba 100644
--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
@@ -6,7 +6,7 @@ import java.util.zip.DataFormatException;
import java.util.zip.Deflater;
import java.util.zip.Inflater;
-public class PacketPlayOutMapChunkBulk extends Packet {
+public class PacketPlayOutMapChunkBulk extends Packet implements org.spigotmc.Compressible { // Spigot
private int[] a;
private int[] b;
@@ -174,7 +174,7 @@ public class PacketPlayOutMapChunkBulk extends Packet {
}
public void b(PacketDataSerializer packetdataserializer) throws IOException { // CraftBukkit - throws IOException
- compress(); // CraftBukkit
+ // compress(); // CraftBukkit // Spigot - removed
packetdataserializer.writeShort(this.a.length);
packetdataserializer.writeInt(this.size);
packetdataserializer.writeBoolean(this.h);
diff --git a/src/main/java/net/minecraft/server/ServerConnectionChannel.java b/src/main/java/net/minecraft/server/ServerConnectionChannel.java
index fb95be4..b18944e 100644
--- a/src/main/java/net/minecraft/server/ServerConnectionChannel.java
+++ b/src/main/java/net/minecraft/server/ServerConnectionChannel.java
@@ -27,7 +27,8 @@ class ServerConnectionChannel extends ChannelInitializer {
;
}
- channel.pipeline().addLast("timeout", new ReadTimeoutHandler(30)).addLast("legacy_query", new LegacyPingHandler(this.a)).addLast("splitter", new PacketSplitter()).addLast("decoder", new PacketDecoder()).addLast("prepender", new PacketPrepender()).addLast("encoder", new PacketEncoder());
+ channel.pipeline().addLast("timeout", new ReadTimeoutHandler(30)).addLast("legacy_query", new LegacyPingHandler(this.a)).addLast("splitter", new PacketSplitter()).addLast("decoder", new PacketDecoder()).addLast("prepender", new PacketPrepender()).addLast("encoder", new PacketEncoder())
+ .addLast( new net.minecraft.util.io.netty.util.concurrent.DefaultEventExecutorGroup( org.spigotmc.SpigotConfig.compressionThreads, new com.google.common.util.concurrent.ThreadFactoryBuilder().setNameFormat( "Chunk Compressor #%d" ).setDaemon( true ).build() ), "compressor", new org.spigotmc.ChunkCompressor() ); // Spigot
NetworkManager networkmanager = new NetworkManager(false);
ServerConnection.a(this.a).add(networkmanager);
diff --git a/src/main/java/org/spigotmc/ChunkCompressor.java b/src/main/java/org/spigotmc/ChunkCompressor.java
new file mode 100644
index 0000000..71fcea6
--- /dev/null
+++ b/src/main/java/org/spigotmc/ChunkCompressor.java
@@ -0,0 +1,21 @@
+package org.spigotmc;
+
+import net.minecraft.util.io.netty.channel.ChannelHandlerContext;
+import net.minecraft.util.io.netty.channel.ChannelOutboundHandlerAdapter;
+import net.minecraft.util.io.netty.channel.ChannelPromise;
+
+public class ChunkCompressor extends ChannelOutboundHandlerAdapter
+{
+
+ @Override
+ public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception
+ {
+ if ( msg instanceof Compressible )
+ {
+ long start = System.currentTimeMillis();
+ ( (Compressible) msg ).compress(); // TODO: Caching!
+ System.out.println( "Took: " + ( System.currentTimeMillis() - start ) + "ms to compress" );
+ }
+ super.write( ctx, msg, promise );
+ }
+}
diff --git a/src/main/java/org/spigotmc/Compressible.java b/src/main/java/org/spigotmc/Compressible.java
new file mode 100644
index 0000000..f1cc789
--- /dev/null
+++ b/src/main/java/org/spigotmc/Compressible.java
@@ -0,0 +1,7 @@
+package org.spigotmc;
+
+public interface Compressible
+{
+
+ void compress();
+}
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index 552266b..ca41dd9 100755
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -266,4 +266,11 @@ public class SpigotConfig
{
playerShuffle = getInt( "settings.player-shuffle", 0 );
}
+
+ public static int compressionThreads;
+ private static void compressionThreads()
+ {
+ compressionThreads = getInt( "settings.compression-threads", 4 );
+ Bukkit.getLogger().log( Level.INFO, "Using {0} threads for async chunk compression", compressionThreads );
+ }
}
--
1.8.3.2