PaperMC/patches/server/0785-Do-not-overload-I-O-threads-with-chunk-data-while-fl.patch
Nassim Jahnke 1358d1e914
Updated Upstream (CraftBukkit/Spigot) (#7580)
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:
881e06e5 PR-725: Add Item Unlimited Lifetime APIs

CraftBukkit Changes:
74c08312 SPIGOT-6962: Call EntityChangeBlockEvent when when FallingBlockEntity starts to fall
64db5126 SPIGOT-6959: Make /loot command ignore empty items for spawn
2d760831 Increase outdated build delay
9ed7e4fb SPIGOT-6138, SPIGOT-6415: Don't call CreatureSpawnEvent after cross-dimensional travel
fc4ad813 SPIGOT-6895: Trees grown with applyBoneMeal() don't fire the StructureGrowthEvent
59733a2e SPIGOT-6961: Actually return a copy of the ItemMeta

Spigot Changes:
ffceeae3 SPIGOT-6956: Drop unload queue patch as attempt at fixing stop issue
e19ddabd PR-1011: Add Item Unlimited Lifetime APIs
34d40b0e SPIGOT-2942: give command fires PlayerDropItemEvent, cancelling it causes Item Duplication
2022-03-13 08:47:54 +01:00

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2.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 16 Oct 2021 01:36:00 -0700
Subject: [PATCH] Do not overload I/O threads with chunk data while flush
saving
If the chunk count is high, then the memory used by the
chunks adds up and could cause problems. By flushing
every so many chunks, the server will not become
stressed for memory. It will also not increase the total
time to save, as flush saving performs a full flush at
the end anyways.
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index a578ff8a88ef944516150303e96f8b49bc797f64..9999f9743184ba929635d625c60836c046ededd4 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -928,6 +928,16 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
// Paper end
protected void saveAllChunks(boolean flush) {
+ // Paper start - do not overload I/O threads with too much work when saving
+ int[] saved = new int[1];
+ int maxAsyncSaves = 50;
+ Runnable onChunkSave = () -> {
+ if (++saved[0] >= maxAsyncSaves) {
+ saved[0] = 0;
+ com.destroystokyo.paper.io.PaperFileIOThread.Holder.INSTANCE.flush();
+ }
+ };
+ // Paper end - do not overload I/O threads with too much work when saving
if (flush) {
List<ChunkHolder> list = (List) this.updatingChunks.getVisibleValuesCopy().stream().filter(ChunkHolder::wasAccessibleSinceLastSave).peek(ChunkHolder::refreshAccessibility).collect(Collectors.toList()); // Paper
MutableBoolean mutableboolean = new MutableBoolean();
@@ -950,6 +960,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
}).filter((ichunkaccess) -> {
return ichunkaccess instanceof ImposterProtoChunk || ichunkaccess instanceof LevelChunk;
}).filter(this::save).forEach((ichunkaccess) -> {
+ onChunkSave.run(); // Paper - do not overload I/O threads with too much work when saving
mutableboolean.setTrue();
});
} while (mutableboolean.isTrue());