papermc/CraftBukkit-Patches/0045-Lower-Chunk-Compression.patch

From 53f54e7754a93ba7d6c0cd7ce423f5e26cd13836 Mon Sep 17 00:00:00 2001
From: md_5 <md_5@live.com.au>
Date: Tue, 2 Jul 2013 09:07:54 +1000
Subject: [PATCH] Lower Chunk Compression

Use a chunk compression level of 4 - this provides an optimal balance between speed and compression.

diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
index 7169ec8..3006712 100644
--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
@@ -24,7 +24,7 @@ public class PacketPlayOutMapChunk extends Packet {
         this.b = chunk.locZ;
         this.inflatedBuffer = flag;
         ChunkMap chunkmap = a(chunk, flag, i);
-        Deflater deflater = new Deflater(-1);
+        Deflater deflater = new Deflater(4); // Spigot
 
         this.d = chunkmap.c;
         this.c = chunkmap.b;
diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
index c3cfdc7..8e1c4cb 100644
--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunkBulk.java
@@ -22,7 +22,7 @@ public class PacketPlayOutMapChunkBulk extends Packet {
         @Override
         protected Deflater initialValue() {
             // Don't use higher compression level, slows things down too much
-            return new Deflater(6);
+            return new Deflater(4); // Spigot 6 -> 4
         }
     };
     // CraftBukkit end
-- 
1.8.3.2