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7fa8870043
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: 7902647a PR-737: Update WorldCreator#generatorSettings docs 67556a50 PR-736: Update README CraftBukkit Changes: 10922194 Java 18 support d53c4fb6 PR-1039: Use correct ops in GeneratorSettings a567e4ae PR-1038: Removed the no longer needed getChunkUnchecked method from ChunkProviderServer. 4ac8fcce SPIGOT-6980: Since 1.18.2, World#isChunkLoaded returned false for chunks that have just been loaded (e.g. inside ChunkLoadEvent). e6cc7c70 PR-1035: Update README 3ec79a27 SPIGOT-5140: Call EntityChangeBlockEvent when a ChorusFlower is destroyed by a projectile
52 lines
2.5 KiB
Diff
52 lines
2.5 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: Sat, 4 Apr 2020 17:00:20 -0700
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Subject: [PATCH] Consolidate flush calls for entity tracker packets
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Most server packets seem to be sent from here, so try to avoid
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expensive flush calls from them.
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This change was motivated due to local testing:
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- My server spawn has 130 cows in it (for testing a prev. patch)
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- Try to let 200 players join spawn
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Without this change, I could only get 20 players on before they
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all started timing out due to the load put on the Netty I/O threads.
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With this change I could get all 200 on at 0ms ping.
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(one of the primary issues is that my CPU is kinda trash, and having
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4 extra threads at 100% is just too much for it).
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So in general this patch should reduce Netty I/O thread load.
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diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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index 84f386e5f15d956cfd279baecd01558dcf9af88d..78538e3d3468f5c682cf4123ac930796c20af60c 100644
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--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
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@@ -1069,7 +1069,24 @@ public class ServerChunkCache extends ChunkSource {
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this.level.timings.broadcastChunkUpdates.stopTiming(); // Paper - timing
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gameprofilerfiller.pop();
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// Paper end - use set of chunks requiring updates, rather than iterating every single one loaded
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+ // Paper start - controlled flush for entity tracker packets
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+ List<net.minecraft.network.Connection> disabledFlushes = new java.util.ArrayList<>(this.level.players.size());
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+ for (ServerPlayer player : this.level.players) {
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+ net.minecraft.server.network.ServerGamePacketListenerImpl connection = player.connection;
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+ if (connection != null) {
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+ connection.connection.disableAutomaticFlush();
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+ disabledFlushes.add(connection.connection);
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+ }
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+ }
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+ try { // Paper end - controlled flush for entity tracker packets
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this.chunkMap.tick();
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+ // Paper start - controlled flush for entity tracker packets
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+ } finally {
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+ for (net.minecraft.network.Connection networkManager : disabledFlushes) {
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+ networkManager.enableAutomaticFlush();
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+ }
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+ }
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+ // Paper end - controlled flush for entity tracker packets
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}
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}
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