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Optimize Spare Chunk loads to be removed faster

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this has technically been a longer standing problem, but if an async
chunk loads after a chunk has been removed from the chunk map, it would
be treated as any other spare chunk and kept loaded until Chunk GC kicks in.

This fixes that, but also obsoletes ChunkGC in that anytime we load a spare
chunk (a chunk outside of any players view distance), we will immediately
mark it for unload.

This should reduce the amount of spare chunks loaded on a server.
Dieser Commit ist enthalten in:
Aikar 2018-09-30 20:34:05 -04:00
Ursprung 6135b37c05
Commit 48b1b0aac5
Es konnte kein GPG-Schlüssel zu dieser Signatur gefunden werden
GPG-Schlüssel-ID: 401ADFC9891FAAFE
5 geänderte Dateien mit 74 neuen und 27 gelöschten Zeilen
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61
Spigot-Server-Patches/0123-Delay-Chunk-Unloads-based-on-Player-Movement.patch
Datei anzeigen

@ -1,4 +1,4 @@
From e46d08efd3f5e429c3d0cabb76bf8456bd03324b Mon Sep 17 00:00:00 2001
From a372872c9ea4562ff3b4cf6ab8b5853649d9db80 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
@ -16,6 +16,9 @@ before it actually unloads, which is maintained separately from ChunkGC.
This allows servers with smaller worlds who do less long distance exploring to stop
wasting cpu cycles on saving/unloading/reloading chunks repeatedly.
This also makes the Chunk GC System useless, by auto scheduling unload as soon as
a spare chunk is added to the server thats outside of view distance.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index ff1a2046f6..0cd15c17e8 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@ -51,6 +54,26 @@ index 41d3aaa80b..824727ec66 100644
public final int locX;
public final int locZ;
private boolean l; public boolean needsGapCheck() { return l; } // Paper - OBFHELPER
diff --git a/src/main/java/net/minecraft/server/ChunkMap.java b/src/main/java/net/minecraft/server/ChunkMap.java
index df967ff07d..a3dc90fd2b 100644
--- a/src/main/java/net/minecraft/server/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/ChunkMap.java
@@ -48,6 +48,15 @@ public class ChunkMap extends Long2ObjectOpenHashMap<Chunk> {
}
}
}
+ // Paper start - if this is a spare chunk (not part of any players view distance), go ahead and queue it for unload.
+ if (!((WorldServer)chunk.world).getPlayerChunkMap().isChunkInUse(chunk.locX, chunk.locZ)) {
+ if (chunk.world.paperConfig.delayChunkUnloadsBy > 0) {
+ chunk.scheduledForUnload = System.currentTimeMillis();
+ } else {
+ ((WorldServer) chunk.world).getChunkProviderServer().unload(chunk);
+ }
+ }
+ // Paper end
chunk.world.timings.syncChunkLoadPostTimer.stopTiming(); // Paper
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 2d10f4aa37..719d5deb2c 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
@ -76,10 +99,10 @@ index 2d10f4aa37..719d5deb2c 100644
this.chunkScheduler.a(booleansupplier);
}
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index ac0e90eeca..3f4a8f21c0 100644
index ac0e90eeca..abf5a7554d 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -33,8 +33,16 @@ public class PlayerChunk {
@@ -33,8 +33,22 @@ public class PlayerChunk {
public void run() {
loadInProgress = false;
PlayerChunk.this.chunk = PlayerChunk.this.playerChunkMap.getWorld().getChunkProviderServer().getChunkAt(location.x, location.z, true, true);
@ -87,16 +110,22 @@ index ac0e90eeca..3f4a8f21c0 100644
}
};
+ // Paper start - delay chunk unloads
+ public final void markChunkUsed() {
+ if (chunk != null && chunk.scheduledForUnload != null) {
+ private void markChunkUsed() {
+ if (chunk == null) {
+ return;
+ }
+ if (!chunkHasPlayers) {
+ chunk.scheduledForUnload = null;
+ } else if (chunk.scheduledForUnload == null) {
+ chunk.scheduledForUnload = System.currentTimeMillis();
+ }
+ }
+ private boolean chunkHasPlayers = true;
+ // Paper end
// CraftBukkit end
public PlayerChunk(PlayerChunkMap playerchunkmap, int i, int j) {
@@ -44,6 +52,7 @@ public class PlayerChunk {
@@ -44,6 +58,7 @@ public class PlayerChunk {
chunkproviderserver.a(i, j);
this.chunk = chunkproviderserver.getChunkAt(i, j, true, false);
@ -104,7 +133,25 @@ index ac0e90eeca..3f4a8f21c0 100644
}
public ChunkCoordIntPair a() {
@@ -85,6 +94,7 @@ public class PlayerChunk {
@@ -56,6 +71,8 @@ public class PlayerChunk {
} else {
if (this.c.isEmpty()) {
this.i = this.playerChunkMap.getWorld().getTime();
+ chunkHasPlayers = false; // Paper - delay chunk unloads
+ markChunkUsed(); // Paper - delay chunk unloads
}
this.c.add(entityplayer);
@@ -74,6 +91,8 @@ public class PlayerChunk {
this.c.remove(entityplayer);
if (this.c.isEmpty()) {
+ chunkHasPlayers = true; // Paper - delay chunk unloads
+ markChunkUsed(); // Paper - delay chunk unloads
this.playerChunkMap.b(this);
}
@@ -85,6 +104,7 @@ public class PlayerChunk {
return true;
} else {
this.chunk = this.playerChunkMap.getWorld().getChunkProviderServer().getChunkAt(this.location.x, this.location.z, true, flag);

6
Spigot-Server-Patches/0225-Configurable-Max-Chunk-Gens-per-Tick.patch
Datei anzeigen

@ -1,4 +1,4 @@
From bc339909a375acc1fcb613875ca508e0ae4cfb80 Mon Sep 17 00:00:00 2001
From 4ea0d21a910e0b43daefd58d3f4c477d9ca703fa Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 1 Jan 2018 16:10:24 -0500
Subject: [PATCH] Configurable Max Chunk Gens per Tick
@ -33,7 +33,7 @@ index af69342e6c..ca7efc9175 100644
+ }
}
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index 3f4a8f21c0..f8d8a44a88 100644
index abf5a7554d..84896d6f6b 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -28,6 +28,7 @@ public class PlayerChunk {
@ -44,7 +44,7 @@ index 3f4a8f21c0..f8d8a44a88 100644
private boolean loadInProgress = false;
private Runnable loadedRunnable = new Runnable() {
public void run() {
@@ -52,6 +53,7 @@ public class PlayerChunk {
@@ -58,6 +59,7 @@ public class PlayerChunk {
chunkproviderserver.a(i, j);
this.chunk = chunkproviderserver.getChunkAt(i, j, true, false);

10
Spigot-Server-Patches/0341-Anti-Xray.patch
Datei anzeigen

@ -1,4 +1,4 @@
From 7849249a2aa766c3b1d3e35b7cf3c5f21dd2a9a1 Mon Sep 17 00:00:00 2001
From 4d479efcce6177802b86638396126228f3c8351f Mon Sep 17 00:00:00 2001
From: stonar96 <minecraft.stonar96@gmail.com>
Date: Mon, 20 Aug 2018 03:03:58 +0200
Subject: [PATCH] Anti-Xray
@ -1418,10 +1418,10 @@ index 22a262bb60..40ec398eef 100644
if (flag) {
packetdataserializer.writeBytes(chunksection.getSkyLightArray().asBytes());
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index f8d8a44a88..e7d465fb8a 100644
index 84896d6f6b..2a889dc20a 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -108,6 +108,8 @@ public class PlayerChunk {
@@ -118,6 +118,8 @@ public class PlayerChunk {
return false;
} else if (!this.chunk.isReady()) {
return false;
@ -1430,7 +1430,7 @@ index f8d8a44a88..e7d465fb8a 100644
} else {
this.dirtyCount = 0;
this.h = 0;
@@ -130,6 +132,7 @@ public class PlayerChunk {
@@ -140,6 +142,7 @@ public class PlayerChunk {
public void sendChunk(EntityPlayer entityplayer) {
if (this.done) {
@ -1438,7 +1438,7 @@ index f8d8a44a88..e7d465fb8a 100644
entityplayer.playerConnection.sendPacket(new PacketPlayOutMapChunk(this.chunk, '\uffff'));
this.playerChunkMap.getWorld().getTracker().a(entityplayer, this.chunk);
}
@@ -194,6 +197,9 @@ public class PlayerChunk {
@@ -204,6 +207,9 @@ public class PlayerChunk {
this.a(this.playerChunkMap.getWorld().getTileEntity(blockposition));
}
} else if (this.dirtyCount == 64) {

18
Spigot-Server-Patches/0377-Async-Chunk-Loading-and-Generation.patch
Datei anzeigen

@ -1,4 +1,4 @@
From b75c9e7ccdb0bd7cedb1938ca328089e9bee5c51 Mon Sep 17 00:00:00 2001
From 34048ff608e60efadf17ad137dd11cf19ac7dc34 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 21 Jul 2018 16:55:04 -0400
Subject: [PATCH] Async Chunk Loading and Generation
@ -1215,7 +1215,7 @@ index 0000000000..47d9ecdbf1
+
+}
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index e7d465fb8a..61de438fdf 100644
index 2a889dc20a..242691d89d 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -30,13 +30,42 @@ public class PlayerChunk {
@ -1265,9 +1265,9 @@ index e7d465fb8a..61de438fdf 100644
+ }
+ // Paper end
// Paper start - delay chunk unloads
public final void markChunkUsed() {
if (chunk != null && chunk.scheduledForUnload != null) {
@@ -52,8 +81,8 @@ public class PlayerChunk {
private void markChunkUsed() {
if (chunk == null) {
@@ -58,8 +87,8 @@ public class PlayerChunk {
ChunkProviderServer chunkproviderserver = playerchunkmap.getWorld().getChunkProviderServer();
chunkproviderserver.a(i, j);
@ -1278,15 +1278,15 @@ index e7d465fb8a..61de438fdf 100644
markChunkUsed(); // Paper - delay chunk unloads
}
@@ -68,6 +97,7 @@ public class PlayerChunk {
if (this.c.isEmpty()) {
this.i = this.playerChunkMap.getWorld().getTime();
@@ -76,6 +105,7 @@ public class PlayerChunk {
chunkHasPlayers = false; // Paper - delay chunk unloads
markChunkUsed(); // Paper - delay chunk unloads
}
+ checkHighPriority(entityplayer); // Paper
this.c.add(entityplayer);
if (this.done) {
@@ -95,8 +125,13 @@ public class PlayerChunk {
@@ -105,8 +135,13 @@ public class PlayerChunk {
if (this.chunk != null) {
return true;
} else {

6
Spigot-Server-Patches/0383-Fix-Sending-Chunks-to-Client.patch
Datei anzeigen

@ -1,4 +1,4 @@
From 47c57748b767f78894eb5cc9ca5d073f114ee28a Mon Sep 17 00:00:00 2001
From 352ece97092f16a3e286a80a585c9da808c174dc Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 29 Sep 2018 01:18:16 -0400
Subject: [PATCH] Fix Sending Chunks to Client
@ -41,7 +41,7 @@ index 895eb60854..350479dc68 100644
}
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index 61de438fdf..fca88c3018 100644
index 242691d89d..86f0fb3c2a 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -23,7 +23,7 @@ public class PlayerChunk {
@ -53,7 +53,7 @@ index 61de438fdf..fca88c3018 100644
// CraftBukkit start - add fields
// You know the drill, https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/browse
@@ -136,6 +136,7 @@ public class PlayerChunk {
@@ -146,6 +146,7 @@ public class PlayerChunk {
}
}