From e4d1232c82e9f706a4e6f3ca918109cedfeb3121 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 22 Jul 2018 21:21:41 -0400
Subject: [PATCH] Don't save Proto Chunks

These chunks are unfinished, and waste cpu time saving these unfinished chunks.
the loadChunk method refuses to acknoledge they exists, and will restart
a new chunk generation process to begin with, so saving them serves no benefit.

diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index c7bc4cc363..2244d65ee6 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -588,6 +588,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
     }
 
     public boolean saveChunk(IChunkAccess ichunkaccess, boolean save) {
+        if (ichunkaccess.getChunkStatus().getType() == ChunkStatus.Type.PROTOCHUNK) { return false; } // Paper - don't save proto chunks
         // CraftBukkit end
         this.n.a(ichunkaccess.getPos());
         if (!save) { // CraftBukkit
-- 
2.21.0