papermc/Spigot-Server-Patches/0075-Configurable-Chunk-Inhabited-Time.patch
Aikar 210a32f26f
Unload leaked Cached Chunks
Due to some complexity in mojangs complicated chain of juggling
whether or not a chunk should be unloaded when the last ticket is
removed, many chunks are remaining around in the cache.

These chunks are never being targetted for unload because they are
vastly out of view distance range and have no reason to be looked at.

This is a huge issue for performance because we have to iterate these
chunks EVERY TICK... This is what's been leading to high SELF time in
Ticking Chunks timings/profiler results.

We will now detect these chunks in that iteration, and automatically
add it to the unload queue when the chunk is found without any tickets.
2020-05-25 11:12:22 -04:00

44 lines
2.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 28 Mar 2016 20:46:14 -0400
Subject: [PATCH] Configurable Chunk Inhabited Time
Vanilla stores how long a chunk has been active on a server, and dynamically scales some
aspects of vanilla gameplay to this factor.
For people who want all chunks to be treated equally, you can chose a fixed value.
This allows to fine-tune vanilla gameplay.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 6ef0e1399e9ff260712db1a044068c125b1316d3..5872e6b171416686b11678ac9f65706b83b4e231 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -236,4 +236,14 @@ public class PaperWorldConfig {
skeleHorseSpawnChance = 0.01D; // Vanilla value
}
}
+
+ public int fixedInhabitedTime;
+ private void fixedInhabitedTime() {
+ if (PaperConfig.version < 16) {
+ if (!config.getBoolean("world-settings.default.use-chunk-inhabited-timer", true)) config.set("world-settings.default.fixed-chunk-inhabited-time", 0);
+ if (!config.getBoolean("world-settings." + worldName + ".use-chunk-inhabited-timer", true)) config.set("world-settings." + worldName + ".fixed-chunk-inhabited-time", 0);
+ set("use-chunk-inhabited-timer", null);
+ }
+ fixedInhabitedTime = getInt("fixed-chunk-inhabited-time", -1);
+ }
}
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 324cd78f8c896d300d1e74acde3db6a81dab2b0d..f5298a2fa911a18a5d390666c92155dd618666c5 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -973,7 +973,7 @@ public class Chunk implements IChunkAccess {
@Override
public long getInhabitedTime() {
- return this.inhabitedTime;
+ return world.paperConfig.fixedInhabitedTime < 0 ? this.inhabitedTime : world.paperConfig.fixedInhabitedTime; // Paper
}
@Override