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https://github.com/PaperMC/Paper.git
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5cdfbda4e4
light queue is actually buggy, so re-enabling the config. however, if anyone is ok with the buggy behavior, made the max time lost due to light queue configurable. We want to get to making the ligth queue default if we can make it work perfectly. also applying neighbor optimizations to use the faster method for light checks.
112 lines
5.0 KiB
Diff
112 lines
5.0 KiB
Diff
From 6926ca16ef7d080a1de24ee8a1226862a1d3f791 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 1 Jan 2018 16:10:24 -0500
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Subject: [PATCH] Configurable Max Chunk Gens per Tick
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Limit the number of generations that can occur in a single tick, forcing them
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to be spread out more.
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Defaulting to 10 as an average generation is going to be 3-6ms, which means 10 will
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likely cause the server to lose TPS, but constrain how much.
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This should result in no noticeable speed reduction in generation for servers not
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lagging, and let larger servers reduce this value according to their own desires.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index af69342e6c..ca7efc9175 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -388,4 +388,15 @@ public class PaperWorldConfig {
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}
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log("Max Chunk Sends Per Tick: " + maxChunkSendsPerTick);
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}
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+
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+ public int maxChunkGensPerTick = 10;
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+ private void maxChunkGensPerTick() {
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+ maxChunkGensPerTick = getInt("max-chunk-gens-per-tick", maxChunkGensPerTick);
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+ if (maxChunkGensPerTick <= 0) {
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+ maxChunkGensPerTick = Integer.MAX_VALUE;
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+ log("Max Chunk Gens Per Tick: Unlimited (NOT RECOMMENDED)");
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+ } else {
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+ log("Max Chunk Gens Per Tick: " + maxChunkGensPerTick);
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+ }
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+ }
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}
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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 3f4a8f21c0..f8d8a44a88 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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@@ -28,6 +28,7 @@ public class PlayerChunk {
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// CraftBukkit start - add fields
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// You know the drill, https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/browse
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// All may seem good at first, but there's deeper issues if you play for a bit
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+ boolean chunkExists; // Paper
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private boolean loadInProgress = false;
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private Runnable loadedRunnable = new Runnable() {
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public void run() {
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@@ -52,6 +53,7 @@ public class PlayerChunk {
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chunkproviderserver.a(i, j);
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this.chunk = chunkproviderserver.getChunkAt(i, j, true, false);
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+ this.chunkExists = this.chunk != null || ChunkIOExecutor.hasQueuedChunkLoad(playerChunkMap.getWorld(), i, j); // Paper
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markChunkUsed(); // Paper - delay chunk unloads
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}
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diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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index 54f31349e9..d1a443ca8d 100644
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--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
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+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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@@ -140,6 +140,7 @@ public class PlayerChunkMap {
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// Spigot start
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org.spigotmc.SlackActivityAccountant activityAccountant = this.world.getMinecraftServer().slackActivityAccountant;
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activityAccountant.startActivity(0.5);
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+ int chunkGensAllowed = world.paperConfig.maxChunkGensPerTick; // Paper
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// Spigot end
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Iterator iterator1 = this.h.iterator();
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@@ -149,6 +150,11 @@ public class PlayerChunkMap {
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if (playerchunk1.f() == null) {
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boolean flag = playerchunk1.a(PlayerChunkMap.b);
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+ // Paper start
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+ if (flag && !playerchunk1.chunkExists && chunkGensAllowed-- <= 0) {
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+ continue;
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+ }
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+ // Paper end
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if (playerchunk1.a(flag)) {
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iterator1.remove();
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diff --git a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java
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index 9aaca21a79..f50d55c8ee 100644
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--- a/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java
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+++ b/src/main/java/org/bukkit/craftbukkit/chunkio/ChunkIOExecutor.java
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@@ -35,4 +35,10 @@ public class ChunkIOExecutor {
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public static void tick() {
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instance.finishActive();
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}
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+
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+ // Paper start
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+ public static boolean hasQueuedChunkLoad(World world, int x, int z) {
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+ return instance.hasTask(new QueuedChunk(x, z, null, world, null));
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+ }
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+ // Paper end
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/util/AsynchronousExecutor.java b/src/main/java/org/bukkit/craftbukkit/util/AsynchronousExecutor.java
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index 193c3621c6..cf1258c559 100644
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--- a/src/main/java/org/bukkit/craftbukkit/util/AsynchronousExecutor.java
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+++ b/src/main/java/org/bukkit/craftbukkit/util/AsynchronousExecutor.java
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@@ -351,4 +351,10 @@ public final class AsynchronousExecutor<P, T, C, E extends Throwable> {
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public void setActiveThreads(final int coreSize) {
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pool.setCorePoolSize(coreSize);
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}
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+
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+ // Paper start
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+ public boolean hasTask(P parameter) throws IllegalStateException {
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+ return tasks.get(parameter) != null;
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+ }
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+ // Paper end
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}
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--
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2.19.0
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