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286bd1bfb5
- Port player chunk loader patch Makes the chunk system act as it did in 1.17, no additional tickets (and thus logic) to make a chunk ticking. Adds simulation distance API, deprecates old no-tick method. - More collision optimisations Ancient patch from tuinity that never could be pushed to master. - Fix Optimise ArraySetSorted#removeIf patch - Execute chunk tasks fairly for worlds while waiting for next tick - Port Replace ticket level propagator
43 lines
2.3 KiB
Diff
43 lines
2.3 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, 16 Oct 2021 01:36:00 -0700
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Subject: [PATCH] Do not overload I/O threads with chunk data while flush
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saving
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If the chunk count is high, then the memory used by the
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chunks adds up and could cause problems. By flushing
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every so many chunks, the server will not become
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stressed for memory. It will also not increase the total
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time to save, as flush saving performs a full flush at
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the end anyways.
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diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index 3c90c6514dc856490da7fca5c8a42023493836d7..8678640da7724283664e3f115230d6b2687967b1 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -892,6 +892,16 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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// Paper end
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protected void saveAllChunks(boolean flush) {
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+ // Paper start - do not overload I/O threads with too much work when saving
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+ int[] saved = new int[1];
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+ int maxAsyncSaves = 50;
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+ Runnable onChunkSave = () -> {
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+ if (++saved[0] >= maxAsyncSaves) {
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+ saved[0] = 0;
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+ com.destroystokyo.paper.io.PaperFileIOThread.Holder.INSTANCE.flush();
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+ }
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+ };
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+ // Paper end - do not overload I/O threads with too much work when saving
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if (flush) {
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List<ChunkHolder> list = (List) this.updatingChunks.getVisibleValuesCopy().stream().filter(ChunkHolder::wasAccessibleSinceLastSave).peek(ChunkHolder::refreshAccessibility).collect(Collectors.toList()); // Paper
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MutableBoolean mutableboolean = new MutableBoolean();
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@@ -914,6 +924,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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}).filter((ichunkaccess) -> {
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return ichunkaccess instanceof ImposterProtoChunk || ichunkaccess instanceof LevelChunk;
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}).filter(this::save).forEach((ichunkaccess) -> {
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+ onChunkSave.run(); // Paper - do not overload I/O threads with too much work when saving
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mutableboolean.setTrue();
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});
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} while (mutableboolean.isTrue());
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