Paper/patches/server/0694-Consolidate-flush-calls-for-entity-tracker-packets.patch
Bjarne Koll 2873869bb1
Drop manual isEditable copy in CraftSign
Signs no longer have a specific isEdiable state, the entire API in this
regard needs updating/deprecation. The boolean field is completely gone,
replaced by a uuid (which will need a new setEditingPlayer(UUID) method
on the Sign interface), and the current upstream implementation of
setEdiable simply flips the is_waxed state.

This patch is hence not needed as it neither allows editing (which will
be redone in a later patch) nor is required to copy the is_waxed boolean
flag as it lives in the signs compound tag and is covered by applyTo.
2023-06-08 11:35:39 +02:00

53 Zeilen
2.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 4 Apr 2020 17:00:20 -0700
Subject: [PATCH] Consolidate flush calls for entity tracker packets
Most server packets seem to be sent from here, so try to avoid
expensive flush calls from them.
This change was motivated due to local testing:
- My server spawn has 130 cows in it (for testing a prev. patch)
- Try to let 200 players join spawn
Without this change, I could only get 20 players on before they
all started timing out due to the load put on the Netty I/O threads.
With this change I could get all 200 on at 0ms ping.
(one of the primary issues is that my CPU is kinda trash, and having
4 extra threads at 100% is just too much for it).
So in general this patch should reduce Netty I/O thread load.
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
index 371f7e71610ddfbdb32dcd493f15d6ff9b90326e..42526088af333f818b02c80a3f8aa890ab78f6fb 100644
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
@@ -807,7 +807,24 @@ public class ServerChunkCache extends ChunkSource {
this.level.timings.broadcastChunkUpdates.stopTiming(); // Paper - timing
gameprofilerfiller.pop();
// Paper end - use set of chunks requiring updates, rather than iterating every single one loaded
+ // Paper start - controlled flush for entity tracker packets
+ List<net.minecraft.network.Connection> disabledFlushes = new java.util.ArrayList<>(this.level.players.size());
+ for (ServerPlayer player : this.level.players) {
+ net.minecraft.server.network.ServerGamePacketListenerImpl connection = player.connection;
+ if (connection != null) {
+ connection.connection.disableAutomaticFlush();
+ disabledFlushes.add(connection.connection);
+ }
+ }
+ try { // Paper end - controlled flush for entity tracker packets
this.chunkMap.tick();
+ // Paper start - controlled flush for entity tracker packets
+ } finally {
+ for (net.minecraft.network.Connection networkManager : disabledFlushes) {
+ networkManager.enableAutomaticFlush();
+ }
+ }
+ // Paper end - controlled flush for entity tracker packets
}
}