Rework that save cap patch and make it configurable

Spigot-Server-Patches/0180-Prevent-Auto-Save-if-Save-Queue-is-full.patch

@@ -1,28 +1,47 @@
-From 5b011605906059b3d7fbd31206ba146c866300ea Mon Sep 17 00:00:00 2001
+From de20f349b8fdc5cb057267034bb9926673706aa1 Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Thu, 3 Nov 2016 21:52:22 -0400
-Subject: [PATCH] Auto Save Cap
+Subject: [PATCH] Prevent Auto Save if Save Queue is full
 
+If the save queue already has 50 (configurable) of chunks pending,
+then avoid processing auto save (which would add more)
 
+diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+index 51b34d9..9d361cb 100644
+--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
++++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+@@ -394,6 +394,11 @@ public class PaperWorldConfig {
+         maxAutoSaveChunksPerTick = getInt("max-auto-save-chunks-per-tick", 24);
+     }
+ 
++    public int queueSizeAutoSaveThreshold = 50;
++    private void queueSizeAutoSaveThreshold() {
++        queueSizeAutoSaveThreshold = getInt("save-queue-limit-for-auto-save", 50);
++    }
++
+     public boolean removeCorruptTEs = false;
+     private void removeCorruptTEs() {
+         removeCorruptTEs = getBoolean("remove-corrupt-tile-entities", false);
 diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
-index 7e53fee..0f529e6 100644
+index 7e53fee..99afdb7 100644
 --- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
 +++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
-@@ -253,6 +253,13 @@ public class ChunkProviderServer implements IChunkProvider {
+@@ -253,6 +253,14 @@ public class ChunkProviderServer implements IChunkProvider {
          int i = 0;
  
          // CraftBukkit start
 +        // Paper start
 +        final ChunkRegionLoader chunkLoader = (ChunkRegionLoader) world.getChunkProviderServer().chunkLoader;
-+        final int autoSaveLimit = world.paperConfig.maxAutoSaveChunksPerTick - chunkLoader.getQueueSize();
-+        if (autoSaveLimit < 1) {
++        final int queueSize = chunkLoader.getQueueSize();
++        if (queueSize > world.paperConfig.queueSizeAutoSaveThreshold){
 +            return false;
 +        }
++        final int autoSaveLimit = world.paperConfig.maxAutoSaveChunksPerTick;
 +        // Paper end
          Iterator iterator = this.chunks.values().iterator();
          while (iterator.hasNext()) {
              Chunk chunk = (Chunk) iterator.next();
-@@ -266,7 +273,7 @@ public class ChunkProviderServer implements IChunkProvider {
+@@ -266,7 +274,7 @@ public class ChunkProviderServer implements IChunkProvider {
                  this.saveChunk(chunk);
                  chunk.f(false);
                  ++i;