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Paper/patches/server/0703-Optimise-non-flush-packet-sending.patch
Noah van der Aa b8edb0e130
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#9648)
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:
6b34da8f SPIGOT-7467: Add getAddress to RemoteConsoleCommandSender

CraftBukkit Changes:
db4ba2897 SPIGOT-7467: Add getAddress to RemoteConsoleCommandSender
4f7ff4dec PR-1246: Add missing AbstractTestingBase to tests which need them
f70a7b68d SPIGOT-7465, MC-264979: Fresh installations print NoSuchFileException for server.properties
8ef7afef6 PR-1240: Call BlockGrowEvent for vines that are growing on additional sides of an existing vine block

Spigot Changes:
d2eba2c8 Rebuild patches
2023-08-28 13:05:48 +02:00

47 Zeilen
2.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Tue, 22 Sep 2020 01:49:19 -0700
Subject: [PATCH] Optimise non-flush packet sending
Places like entity tracking make heavy use of packet sending,
and internally netty will use some very expensive thread wakeup
calls when scheduling.
Thanks to various hacks in ProtocolLib as well as other
plugins, we cannot simply use a queue of packets to group
send on execute. We have to call execute for each packet.
Tux's suggestion here is exactly what was needed - tag
the Runnable indicating it should not make a wakeup call.
Big thanks to Tux for making this possible as I had given
up on this optimisation before he came along.
Locally this patch drops the entity tracker tick by a full 1.5x.
diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
index 9a9924a645c71e0cec30e29a9defcd1e22e2e8ef..15798ed13488b8b8b16ebee557dce18e3dc51708 100644
--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
@@ -437,9 +437,19 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
if (this.channel.eventLoop().inEventLoop()) {
this.doSendPacket(packet, callbacks, enumprotocol, enumprotocol1, flush); // Paper
} else {
+ // Paper start - optimise packets that are not flushed
+ // note: since the type is not dynamic here, we need to actually copy the old executor code
+ // into two branches. On conflict, just re-copy - no changes were made inside the executor code.
+ if (!flush) {
+ io.netty.util.concurrent.AbstractEventExecutor.LazyRunnable run = () -> {
+ this.doSendPacket(packet, callbacks, enumprotocol, enumprotocol1, flush); // Paper - add flush parameter
+ };
+ this.channel.eventLoop().execute(run);
+ } else { // Paper end - optimise packets that are not flushed
this.channel.eventLoop().execute(() -> {
- this.doSendPacket(packet, callbacks, enumprotocol, enumprotocol1, flush); // Paper
+ this.doSendPacket(packet, callbacks, enumprotocol, enumprotocol1, flush); // Paper - add flush parameter // Paper - diff on change
});
+ } // Paper
}
}