mirror of
https://github.com/PaperMC/Paper.git
synced 2024-11-02 17:01:38 +01:00
47 lines
2.4 KiB
Diff
47 lines
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
|
|
}
|
|
|
|
}
|