mirror of
https://github.com/PaperMC/Paper.git
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7e1525ea2d
Fixed a few bugs, and made numerous improvements. Fixed issue where a sync chunk load could have its ticket removed and the priority ticket could expire... Still not perfect there but better than before. Also fixed few other misc issues such as watchdog cpu usage, chunk queue update had risk of double enqueue due to it no longer being a set. Added much more information about chunk state to watchdog prints. I see some more room for improvement even, but this is much better than before. Fixes #3407 Fixes #3411 Fixes #3395 Fixes #3389
75 lines
4.0 KiB
Diff
75 lines
4.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Wed, 29 May 2019 04:01:22 +0100
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Subject: [PATCH] ChunkMapDistance CME
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diff --git a/src/main/java/net/minecraft/server/ChunkMapDistance.java b/src/main/java/net/minecraft/server/ChunkMapDistance.java
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index ae661297774f51c8b61fc08ca43e13ba368d0021..83da76fdc495225b563cecbdb71422aec2b534f3 100644
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--- a/src/main/java/net/minecraft/server/ChunkMapDistance.java
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+++ b/src/main/java/net/minecraft/server/ChunkMapDistance.java
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@@ -33,7 +33,16 @@ public abstract class ChunkMapDistance {
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private final ChunkMapDistance.a e = new ChunkMapDistance.a();
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private final ChunkMapDistance.b f = new ChunkMapDistance.b(8);
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private final ChunkMapDistance.c g = new ChunkMapDistance.c(33);
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- private final Set<PlayerChunk> pendingChunkUpdates = Sets.newHashSet();
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+ // Paper start use a queue, but still keep unique requirement
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+ public final java.util.Queue<PlayerChunk> pendingChunkUpdates = new java.util.ArrayDeque<PlayerChunk>() {
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+ @Override
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+ public boolean add(PlayerChunk o) {
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+ if (o.isUpdateQueued) return true;
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+ o.isUpdateQueued = true;
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+ return super.add(o);
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+ }
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+ };
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+ // Paper end
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private final ChunkTaskQueueSorter i;
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private final Mailbox<ChunkTaskQueueSorter.a<Runnable>> j;
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private final Mailbox<ChunkTaskQueueSorter.b> k;
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@@ -94,26 +103,14 @@ public abstract class ChunkMapDistance {
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;
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}
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+ // Paper start
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if (!this.pendingChunkUpdates.isEmpty()) {
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- // CraftBukkit start
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- // Iterate pending chunk updates with protection against concurrent modification exceptions
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- java.util.Iterator<PlayerChunk> iter = this.pendingChunkUpdates.iterator();
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- int expectedSize = this.pendingChunkUpdates.size();
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- do {
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- PlayerChunk playerchunk = iter.next();
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- iter.remove();
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- expectedSize--;
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-
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- playerchunk.a(playerchunkmap);
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-
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- // Reset iterator if set was modified using add()
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- if (this.pendingChunkUpdates.size() != expectedSize) {
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- expectedSize = this.pendingChunkUpdates.size();
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- iter = this.pendingChunkUpdates.iterator();
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- }
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- } while (iter.hasNext());
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- // CraftBukkit end
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-
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+ while(!this.pendingChunkUpdates.isEmpty()) {
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+ PlayerChunk remove = this.pendingChunkUpdates.remove();
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+ remove.isUpdateQueued = false;
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+ remove.a(playerchunkmap);
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+ }
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+ // Paper end
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return true;
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} else {
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if (!this.l.isEmpty()) {
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diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
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index 6e9f402fb0faccc222b4289deb36e2d85a66eb7c..980044b9a81232e7d0eab8e4947db6ca1f845c1c 100644
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--- a/src/main/java/net/minecraft/server/PlayerChunk.java
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+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
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@@ -18,6 +18,7 @@ public class PlayerChunk {
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private static final CompletableFuture<Either<Chunk, PlayerChunk.Failure>> UNLOADED_CHUNK_FUTURE = CompletableFuture.completedFuture(PlayerChunk.UNLOADED_CHUNK);
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private static final List<ChunkStatus> CHUNK_STATUSES = ChunkStatus.a();
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private static final PlayerChunk.State[] CHUNK_STATES = PlayerChunk.State.values();
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+ boolean isUpdateQueued = false; // Paper
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private final AtomicReferenceArray<CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>>> statusFutures;
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private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> fullChunkFuture; private int fullChunkCreateCount; private volatile boolean isFullChunkReady; // Paper - cache chunk ticking stage
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private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> tickingFuture; private volatile boolean isTickingReady; // Paper - cache chunk ticking stage
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