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Fix issue with loading chunk during ticking chunks issue

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Also speed up performance of copying pending/updating to visible by
directly copying the internal array data instead of putAll
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Aikar 2020-04-09 20:45:46 -04:00
parent 78431dcaef
commit 3b3e38fd01
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GPG key ID: 401ADFC9891FAAFE
1 changed files with 129 additions and 3 deletions
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132
Spigot-Server-Patches/0462-Speed-up-processing-of-chunk-loads-and-generation.patch
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@ -1,4 +1,4 @@
From 78cfc2701151f762cf58e4fb0390ecc680ae71df Mon Sep 17 00:00:00 2001
From ae2e2e396fefd177b43f3c44db54bceafaf07eb1 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 9 Apr 2020 00:09:26 -0400
Subject: [PATCH] Speed up processing of chunk loads and generation
@ -44,6 +44,46 @@ index 69e26a8267..434833d50e 100644
public static final Timing playerListTimer = Timings.ofSafe("Player List");
public static final Timing commandFunctionsTimer = Timings.ofSafe("Command Functions");
public static final Timing connectionTimer = Timings.ofSafe("Connection Handler");
diff --git a/src/main/java/com/destroystokyo/paper/util/map/Long2ObjectLinkedOpenHashMapFastCopy.java b/src/main/java/com/destroystokyo/paper/util/map/Long2ObjectLinkedOpenHashMapFastCopy.java
new file mode 100644
index 0000000000..99e2041bd9
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/map/Long2ObjectLinkedOpenHashMapFastCopy.java
@@ -0,0 +1,34 @@
+package com.destroystokyo.paper.util.map;
+
+import it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap;
+
+public class Long2ObjectLinkedOpenHashMapFastCopy<V> extends Long2ObjectLinkedOpenHashMap<V> {
+
+ public void copyFrom(Long2ObjectLinkedOpenHashMapFastCopy<V> map) {
+ if (key.length < map.key.length) {
+ key = null;
+ key = new long[map.key.length];
+ }
+ if (value.length < map.value.length) {
+ value = null;
+ //noinspection unchecked
+ value = (V[]) new Object[map.value.length];
+ }
+ if (link.length < map.link.length) {
+ link = null;
+ link = new long[map.link.length];
+ }
+ System.arraycopy(map.key, 0, this.key, 0, map.key.length);
+ System.arraycopy(map.value, 0, this.value, 0, map.value.length);
+ System.arraycopy(map.link, 0, this.link, 0, map.link.length);
+ this.size = map.size;
+ this.mask = map.mask;
+ this.first = map.first;
+ this.last = map.last;
+ this.n = map.n;
+ this.maxFill = map.maxFill;
+ if (map.containsKey(null)) {
+ this.put(null, map.get(null));
+ }
+ }
+}
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index e627440c41..15450f36a4 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
@ -164,10 +204,96 @@ index 06c395000f..936434110c 100644
protected TickTask postToMainThread(Runnable runnable) {
return new TickTask(this.ticks, runnable);
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index ce645a69bd..c21a3ea506 100644
index ce645a69bd..32fed8a39a 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -785,7 +785,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
@@ -55,8 +55,9 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
private static final Logger LOGGER = LogManager.getLogger();
public static final int GOLDEN_TICKET = 33 + ChunkStatus.b();
- public final Long2ObjectLinkedOpenHashMap<PlayerChunk> updatingChunks = new Long2ObjectLinkedOpenHashMap();
- public final Long2ObjectLinkedOpenHashMap<PlayerChunk> visibleChunks = new Long2ObjectLinkedOpenHashMap(); // Paper - remove copying, make mt safe
+ public final com.destroystokyo.paper.util.map.Long2ObjectLinkedOpenHashMapFastCopy<PlayerChunk> updatingChunks = new com.destroystokyo.paper.util.map.Long2ObjectLinkedOpenHashMapFastCopy<>();
+ public final com.destroystokyo.paper.util.map.Long2ObjectLinkedOpenHashMapFastCopy<PlayerChunk> visibleChunks = new com.destroystokyo.paper.util.map.Long2ObjectLinkedOpenHashMapFastCopy<>(); // Paper - remove copying, make mt safe
+ public final com.destroystokyo.paper.util.map.Long2ObjectLinkedOpenHashMapFastCopy<PlayerChunk> pendingVisibleChunks = new com.destroystokyo.paper.util.map.Long2ObjectLinkedOpenHashMapFastCopy<>(); // Paper - remove copying, this is used if the visible chunks is updated while iterating only
public transient Long2ObjectLinkedOpenHashMap<PlayerChunk> visibleChunksClone; // Paper - remove copying, make mt safe
private final Long2ObjectLinkedOpenHashMap<PlayerChunk> pendingUnload;
final LongSet loadedChunks; // Paper - private -> package
@@ -266,10 +267,10 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
// Paper start - remove cloning of visible chunks unless accessed as a collection async
private static final boolean DEBUG_ASYNC_VISIBLE_CHUNKS = Boolean.getBoolean("paper.debug-async-visible-chunks");
private boolean isIterating = false;
+ private boolean hasPendingVisibleUpdate = false;
public void forEachVisibleChunk(java.util.function.Consumer<PlayerChunk> consumer) {
org.spigotmc.AsyncCatcher.catchOp("forEachVisibleChunk");
boolean prev = isIterating;
- boolean wasUpdating = updatingChunksModified;
isIterating = true;
try {
for (PlayerChunk value : this.visibleChunks.values()) {
@@ -277,8 +278,9 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
}
} finally {
this.isIterating = prev;
- if (!this.isIterating && updatingChunksModified && !wasUpdating) {
- this.updateVisibleChunks();
+ if (!this.isIterating && hasPendingVisibleUpdate) {
+ this.visibleChunks.copyFrom(this.pendingVisibleChunks);
+ this.pendingVisibleChunks.clear();
}
}
}
@@ -289,7 +291,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
synchronized (this.visibleChunks) {
if (DEBUG_ASYNC_VISIBLE_CHUNKS) new Throwable("Async getVisibleChunks").printStackTrace();
if (this.visibleChunksClone == null) {
- this.visibleChunksClone = this.visibleChunks.clone();
+ this.visibleChunksClone = this.hasPendingVisibleUpdate ? this.pendingVisibleChunks.clone() : this.visibleChunks.clone();
}
return this.visibleChunksClone;
}
@@ -302,11 +304,11 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
// Paper start - mt safe get
if (Thread.currentThread() != this.world.serverThread) {
synchronized (this.visibleChunks) {
- return (PlayerChunk) this.visibleChunks.get(i);
+ return (PlayerChunk) (this.hasPendingVisibleUpdate ? this.pendingVisibleChunks.get(i) : this.visibleChunks.get(i));
}
}
+ return (PlayerChunk) (this.hasPendingVisibleUpdate ? this.pendingVisibleChunks.get(i) : this.visibleChunks.get(i));
// Paper end
- return (PlayerChunk) this.visibleChunks.get(i);
}
protected IntSupplier c(long i) {
@@ -682,16 +684,21 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
});
}
- protected boolean updateVisibleChunks() { return b(); } // Paper - OBFHELPER
protected boolean b() {
- if (!this.updatingChunksModified || this.isIterating) { // Paper
+ if (!this.updatingChunksModified) {
return false;
} else {
// Paper start - stop cloning visibleChunks
synchronized (this.visibleChunks) {
- this.visibleChunks.clear();
- this.visibleChunks.putAll(this.updatingChunks);
- this.visibleChunksClone = null;
+ if (isIterating) {
+ hasPendingVisibleUpdate = true;
+ this.pendingVisibleChunks.copyFrom(this.updatingChunks);
+ } else {
+ hasPendingVisibleUpdate = false;
+ this.pendingVisibleChunks.clear();
+ this.visibleChunks.copyFrom(this.updatingChunks);
+ this.visibleChunksClone = null;
+ }
}
// Paper end
@@ -785,7 +792,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> ret = new CompletableFuture<>();
Consumer<ChunkRegionLoader.InProgressChunkHolder> chunkHolderConsumer = (ChunkRegionLoader.InProgressChunkHolder holder) -> {