108 Zeilen
5.7 KiB
Diff
108 Zeilen
5.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Aikar <aikar@aikar.co>
|
|
Date: Sat, 18 Jun 2016 23:22:12 -0400
|
|
Subject: [PATCH] Delay Chunk Unloads based on Player Movement
|
|
|
|
When players are moving in the world, doing things such as building or exploring,
|
|
they will commonly go back and forth in a small area. This causes a ton of chunk load
|
|
and unload activity on the edge chunks of their view distance.
|
|
|
|
A simple back and forth movement in 6 blocks could spam a chunk to thrash a
|
|
loading and unload cycle over and over again.
|
|
|
|
This is very wasteful. This system introduces a delay of inactivity on a chunk
|
|
before it actually unloads, which will be handled by the ticket expiry process.
|
|
|
|
This allows servers with smaller worlds who do less long distance exploring to stop
|
|
wasting cpu cycles on saving/unloading/reloading chunks repeatedly.
|
|
|
|
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
|
|
index 23badcb54f89dc75d60017b7742568b30811c3f3..1b31b68ed00df972eb32b9749993478fbd9fab6b 100644
|
|
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
|
|
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
|
|
@@ -655,4 +655,13 @@ public class PaperWorldConfig {
|
|
expMergeMaxValue = getInt("experience-merge-max-value", -1);
|
|
log("Experience Merge Max Value: " + expMergeMaxValue);
|
|
}
|
|
+
|
|
+ public long delayChunkUnloadsBy;
|
|
+ private void delayChunkUnloadsBy() {
|
|
+ delayChunkUnloadsBy = PaperConfig.getSeconds(getString("delay-chunk-unloads-by", "10s"));
|
|
+ if (delayChunkUnloadsBy > 0) {
|
|
+ log("Delaying chunk unloads by " + delayChunkUnloadsBy + " seconds");
|
|
+ delayChunkUnloadsBy *= 20;
|
|
+ }
|
|
+ }
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/server/level/DistanceManager.java b/src/main/java/net/minecraft/server/level/DistanceManager.java
|
|
index 95f195980e28bb59f43e5ca1d5e79ebe8c3ddaea..84dc1e94b4f7b8315d8422634dd49b1f85044d18 100644
|
|
--- a/src/main/java/net/minecraft/server/level/DistanceManager.java
|
|
+++ b/src/main/java/net/minecraft/server/level/DistanceManager.java
|
|
@@ -197,6 +197,27 @@ public abstract class DistanceManager {
|
|
boolean removed = false; // CraftBukkit
|
|
if (arraysetsorted.remove(ticket)) {
|
|
removed = true; // CraftBukkit
|
|
+ // Paper start - delay chunk unloads for player tickets
|
|
+ long delayChunkUnloadsBy = chunkMap.level.paperConfig.delayChunkUnloadsBy;
|
|
+ if (ticket.getType() == TicketType.PLAYER && delayChunkUnloadsBy > 0) {
|
|
+ boolean hasPlayer = false;
|
|
+ for (Ticket<?> ticket1 : arraysetsorted) {
|
|
+ if (ticket1.getType() == TicketType.PLAYER) {
|
|
+ hasPlayer = true;
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+ ChunkHolder playerChunk = chunkMap.getUpdatingChunkIfPresent(i);
|
|
+ if (!hasPlayer && playerChunk != null && playerChunk.isFullChunkReady()) {
|
|
+ Ticket<Long> delayUnload = new Ticket<Long>(TicketType.DELAY_UNLOAD, 33, i);
|
|
+ delayUnload.delayUnloadBy = delayChunkUnloadsBy;
|
|
+ delayUnload.setCreatedTick(this.ticketTickCounter);
|
|
+ arraysetsorted.remove(delayUnload);
|
|
+ // refresh ticket
|
|
+ arraysetsorted.add(delayUnload);
|
|
+ }
|
|
+ }
|
|
+ // Paper end
|
|
}
|
|
|
|
if (arraysetsorted.isEmpty()) {
|
|
diff --git a/src/main/java/net/minecraft/server/level/Ticket.java b/src/main/java/net/minecraft/server/level/Ticket.java
|
|
index ffc43e5d3d0563c9e9c171064511b2c65ddf67e1..f1128f0d4a9a0241ac6c9bc18dd13b431c616bb1 100644
|
|
--- a/src/main/java/net/minecraft/server/level/Ticket.java
|
|
+++ b/src/main/java/net/minecraft/server/level/Ticket.java
|
|
@@ -7,11 +7,13 @@ public final class Ticket<T> implements Comparable<Ticket<?>> {
|
|
private final int ticketLevel;
|
|
public final T key;
|
|
public long createdTick;
|
|
+ public long delayUnloadBy; // Paper
|
|
|
|
protected Ticket(TicketType<T> type, int level, T argument) {
|
|
this.type = type;
|
|
this.ticketLevel = level;
|
|
this.key = argument;
|
|
+ this.delayUnloadBy = type.timeout; // Paper
|
|
}
|
|
|
|
@Override
|
|
@@ -60,7 +62,7 @@ public final class Ticket<T> implements Comparable<Ticket<?>> {
|
|
}
|
|
|
|
protected boolean timedOut(long currentTick) {
|
|
- long l = this.type.timeout();
|
|
+ long l = delayUnloadBy; // Paper
|
|
return l != 0L && currentTick - this.createdTick > l;
|
|
}
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/server/level/TicketType.java b/src/main/java/net/minecraft/server/level/TicketType.java
|
|
index 78fbb4c3e52e900956ae0811aaf934c81ee5ea48..8770fe0db46b01e8b608637df4f1a669a3f4cdde 100644
|
|
--- a/src/main/java/net/minecraft/server/level/TicketType.java
|
|
+++ b/src/main/java/net/minecraft/server/level/TicketType.java
|
|
@@ -28,6 +28,7 @@ public class TicketType<T> {
|
|
public static final TicketType<ChunkPos> UNKNOWN = TicketType.create("unknown", Comparator.comparingLong(ChunkPos::toLong), 1);
|
|
public static final TicketType<Unit> PLUGIN = TicketType.create("plugin", (a, b) -> 0); // CraftBukkit
|
|
public static final TicketType<org.bukkit.plugin.Plugin> PLUGIN_TICKET = TicketType.create("plugin_ticket", (plugin1, plugin2) -> plugin1.getClass().getName().compareTo(plugin2.getClass().getName())); // CraftBukkit
|
|
+ public static final TicketType<Long> DELAY_UNLOAD = create("delay_unload", Long::compareTo, 300); // Paper
|
|
|
|
public static <T> TicketType<T> create(String name, Comparator<T> argumentComparator) {
|
|
return new TicketType<>(name, argumentComparator, 0L);
|