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f37381ea8a
Removes synchronization from sending packets
Makes normal packet sends no longer need to be wrapped and queued like it use to work.
Adds more packet queue immunities on top of keep alive to let the following scenarios go out
without delay:
- Keep Alive
- Chat
- Kick
- All of the packets during the Player Joined World event
Hoping that latter one helps join timeout issues more too for slow connections.
Removes processing packet queue off of main thread
- for the few cases where it is allowed, order is not necessary nor
should it even be happening concurrently in first place (handshaking/login/status)
Ensures packets sent asynchronously are dispatched on main thread
This helps ensure safety for ProtocolLib as packet listeners
are commonly accessing world state. This will allow you to schedule
a packet to be sent async, but itll be dispatched sync for packet
listeners to process.
This should solve some deadlock risks
This may provide a decent performance improvement because thread synchronization incurs a cache reset
so by avoiding ever entering a synchronized block, we get to avoid that, and packet sending is a really
hot activity.
45 lines
2 KiB
Diff
45 lines
2 KiB
Diff
From 238da0bfbafde5fadcba5d39613c28eeb68e5e82 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 8 Apr 2020 21:24:05 -0400
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Subject: [PATCH] Increase Light Queue Size
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Wiz mentioned that large WorldEdit operations cause light to run on
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main thread. The queue was small, set to 5.. this bumps it to 20
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but makes it configurable per-world.
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The main risk of increasing this higher is during shutdown, some
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queued light updates may be lost because mojang did not flush the
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light engine on shutdown...
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The queue size only puts a cap on max loss, doesn't solve that problem.
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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 3f44be577e3..a4815f5e69c 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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@@ -667,4 +667,9 @@ public class PaperWorldConfig {
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private void zombieVillagerInfectionChance() {
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zombieVillagerInfectionChance = getDouble("zombie-villager-infection-chance", zombieVillagerInfectionChance);
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}
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+
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+ public int lightQueueSize = 20;
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+ private void lightQueueSize() {
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+ lightQueueSize = getInt("light-queue-size", lightQueueSize);
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+ }
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}
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index d1f82eff218..77adc64e30c 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -637,7 +637,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
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this.executeModerately();
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// CraftBukkit end
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worldloadlistener.b();
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- chunkproviderserver.getLightEngine().a(5);
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+ chunkproviderserver.getLightEngine().a(worldserver.paperConfig.lightQueueSize); // Paper - increase light queue size
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// CraftBukkit start
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this.forceTicks = false;
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--
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2.26.2
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