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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 CraftBukkit Changes: ab8ace685 SPIGOT-7236: Bone meal doesn't increase use statistic 7dcb59b8e Avoid switch on material in previous commit Spigot Changes: 19641c75 SPIGOT-7235: World.Spigot#strikeLightningEffect doesn't do anything
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@users.noreply.github.com>
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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 fa0845ea094714c320617d3a39efac759ddbbd36..1a077353811a0a233f1a7ee7b6afe6c535e49168 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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@@ -46,6 +46,8 @@ 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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@@ -418,9 +420,19 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
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if (this.channel.eventLoop().inEventLoop()) {
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this.doSendPacket(packet, callbacks, enumprotocol, enumprotocol1, flush); // Paper
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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, callbacks, 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, callbacks, enumprotocol, enumprotocol1, flush); // Paper
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+ this.doSendPacket(packet, callbacks, 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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