mirror of
https://github.com/PaperMC/Paper.git
synced 2024-11-03 01:10:37 +01:00
113 lines
4.9 KiB
Diff
113 lines
4.9 KiB
Diff
From a154447f379d5f53108dfa6696d27dce53c51cc5 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 259f5c70..3df3b433 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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@@ -467,4 +467,16 @@ 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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}
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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 045adbd3..20e734bc 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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@@ -27,6 +27,7 @@ public class PlayerChunk {
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private boolean done;
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// CraftBukkit start - add fields
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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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@@ -50,6 +51,7 @@ public class PlayerChunk {
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// CraftBukkit start
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loadInProgress = true;
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this.chunk = playerchunkmap.getWorld().getChunkProviderServer().getChunkAt(i, j, loadedRunnable, 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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// CraftBukkit end
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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 6ee9f6cf..99652ae3 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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@@ -166,6 +166,7 @@ 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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@@ -175,6 +176,11 @@ 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 9aaca21a..f50d55c8 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 193c3621..cf1258c5 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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2.14.1.windows.1
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