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275173e538
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: 0c5d8709 SPIGOT-7400: Downgrade maven-resolver due to issues resolving certain depends 255c4fdb SPIGOT-7380: Add PlayerInteractEvent#getClickedPosition and ChiseledBookshelf#getSlot CraftBukkit Changes: b6b514b7e SPIGOT-7400: Downgrade maven-resolver due to issues resolving certain depends fcff84de9 SPIGOT-7399: Revert null check in CraftMetaItem#safelyAdd 44a4b5649 SPIGOT-7380: Add PlayerInteractEvent#getClickedPosition and ChiseledBookshelf#getSlot 676969d01 SPIGOT-7389: Handle setting null items in ChiseledBookshelf Inventory
53 lines
2.5 KiB
Diff
53 lines
2.5 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: 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 2a31265ac49b7a6e32105530d00952ee0c0d4331..488a253e218409b5f0b4a872cee0928578fa7582 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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@@ -656,7 +656,24 @@ 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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