Paper/patches/server/0344-Increase-Light-Queue-Size.patch
2022-12-07 20:22:28 +01:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 8 Apr 2020 21:24:05 -0400
Subject: [PATCH] Increase Light Queue Size
Wiz mentioned that large WorldEdit operations cause light to run on
main thread. The queue was small, set to 5.. this bumps it to 20
but makes it configurable per-world.
The main risk of increasing this higher is during shutdown, some
queued light updates may be lost because mojang did not flush the
light engine on shutdown...
The queue size only puts a cap on max loss, doesn't solve that problem.
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index ea1ad3dad6bc9c7603d5dd0bdaec0d4563e90f16..867e7186764057507f6f92b52ea6afc4d08774b4 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -788,7 +788,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
this.executeModerately();
// CraftBukkit end
if (worldserver.getWorld().getKeepSpawnInMemory()) worldloadlistener.stop(); // Paper
- chunkproviderserver.getLightEngine().setTaskPerBatch(5);
+ chunkproviderserver.getLightEngine().setTaskPerBatch(worldserver.paperConfig().misc.lightQueueSize); // Paper - increase light queue size
// CraftBukkit start
// this.updateMobSpawningFlags();
worldserver.setSpawnSettings(this.isSpawningMonsters(), this.isSpawningAnimals());