1358d1e914
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 881e06e5 PR-725: Add Item Unlimited Lifetime APIs CraftBukkit Changes: 74c08312 SPIGOT-6962: Call EntityChangeBlockEvent when when FallingBlockEntity starts to fall 64db5126 SPIGOT-6959: Make /loot command ignore empty items for spawn 2d760831 Increase outdated build delay 9ed7e4fb SPIGOT-6138, SPIGOT-6415: Don't call CreatureSpawnEvent after cross-dimensional travel fc4ad813 SPIGOT-6895: Trees grown with applyBoneMeal() don't fire the StructureGrowthEvent 59733a2e SPIGOT-6961: Actually return a copy of the ItemMeta Spigot Changes: ffceeae3 SPIGOT-6956: Drop unload queue patch as attempt at fixing stop issue e19ddabd PR-1011: Add Item Unlimited Lifetime APIs 34d40b0e SPIGOT-2942: give command fires PlayerDropItemEvent, cancelling it causes Item Duplication
56 lines
2.7 KiB
Diff
56 lines
2.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <spottedleaf@spottedleaf.dev>
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Date: Tue, 22 Sep 2020 01:49:19 -0700
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Subject: [PATCH] Optimise non-flush packet sending
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Places like entity tracking make heavy use of packet sending,
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and internally netty will use some very expensive thread wakeup
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calls when scheduling.
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Thanks to various hacks in ProtocolLib as well as other
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plugins, we cannot simply use a queue of packets to group
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send on execute. We have to call execute for each packet.
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Tux's suggestion here is exactly what was needed - tag
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the Runnable indicating it should not make a wakeup call.
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Big thanks to Tux for making this possible as I had given
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up on this optimisation before he came along.
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Locally this patch drops the entity tracker tick by a full 1.5x.
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diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
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index b27610cde8eaa7ff35c777039a0ca9d8eab748fe..d3a25cc5262843b5c9736ff32e300264d9847c9b 100644
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--- a/src/main/java/net/minecraft/network/Connection.java
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+++ b/src/main/java/net/minecraft/network/Connection.java
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@@ -51,6 +51,8 @@ import org.slf4j.Logger;
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import org.slf4j.Marker;
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import org.slf4j.MarkerFactory;
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+
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+import io.netty.util.concurrent.AbstractEventExecutor; // Paper
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public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
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private static final float AVERAGE_PACKETS_SMOOTHING = 0.75F;
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@@ -399,9 +401,19 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
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if (this.channel.eventLoop().inEventLoop()) {
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this.doSendPacket(packet, callback, enumprotocol, enumprotocol1, flush); // Paper - add flush parameter
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} else {
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+ // Paper start - optimise packets that are not flushed
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+ // note: since the type is not dynamic here, we need to actually copy the old executor code
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+ // into two branches. On conflict, just re-copy - no changes were made inside the executor code.
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+ if (!flush) {
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+ AbstractEventExecutor.LazyRunnable run = () -> {
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+ this.doSendPacket(packet, callback, enumprotocol, enumprotocol1, flush); // Paper - add flush parameter
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+ };
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+ this.channel.eventLoop().execute(run);
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+ } else { // Paper end - optimise packets that are not flushed
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this.channel.eventLoop().execute(() -> {
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- this.doSendPacket(packet, callback, enumprotocol, enumprotocol1, flush); // Paper - add flush parameter
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+ this.doSendPacket(packet, callback, enumprotocol, enumprotocol1, flush); // Paper - add flush parameter // Paper - diff on change
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});
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+ } // Paper
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}
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}
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