89 lines
3.6 KiB
Diff
89 lines
3.6 KiB
Diff
From 294aff4679183b8e0dfa6b15c51d25f449bbff5a Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Sat, 25 Jan 2020 17:04:35 -0800
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Subject: [PATCH] Optimise getChunkAt calls for loaded chunks
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bypass the need to get a player chunk, then get the either,
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then unwrap it...
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diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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index a6529cefe8..8412feef6b 100644
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--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
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+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
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@@ -354,6 +354,12 @@ public class ChunkProviderServer extends IChunkProvider {
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return this.getChunkAt(i, j, chunkstatus, flag);
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}, this.serverThreadQueue).join();
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} else {
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+ // Paper start - optimise for loaded chunks
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+ Chunk ifLoaded = this.getChunkAtIfLoadedMainThread(i, j);
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+ if (ifLoaded != null) {
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+ return ifLoaded;
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+ }
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+ // Paper end
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GameProfilerFiller gameprofilerfiller = this.world.getMethodProfiler();
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gameprofilerfiller.c("getChunk");
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@@ -404,39 +410,7 @@ public class ChunkProviderServer extends IChunkProvider {
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if (Thread.currentThread() != this.serverThread) {
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return null;
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} else {
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- this.world.getMethodProfiler().c("getChunkNow");
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- long k = ChunkCoordIntPair.pair(i, j);
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-
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- for (int l = 0; l < 4; ++l) {
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- if (k == this.cachePos[l] && this.cacheStatus[l] == ChunkStatus.FULL) {
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- IChunkAccess ichunkaccess = this.cacheChunk[l];
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-
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- return ichunkaccess instanceof Chunk ? (Chunk) ichunkaccess : null;
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- }
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- }
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-
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- PlayerChunk playerchunk = this.getChunk(k);
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-
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- if (playerchunk == null) {
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- return null;
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- } else {
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- Either<IChunkAccess, PlayerChunk.Failure> either = (Either) playerchunk.b(ChunkStatus.FULL).getNow(null); // CraftBukkit - decompile error
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-
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- if (either == null) {
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- return null;
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- } else {
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- IChunkAccess ichunkaccess1 = (IChunkAccess) either.left().orElse(null); // CraftBukkit - decompile error
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-
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- if (ichunkaccess1 != null) {
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- this.a(k, ichunkaccess1, ChunkStatus.FULL);
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- if (ichunkaccess1 instanceof Chunk) {
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- return (Chunk) ichunkaccess1;
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- }
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- }
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-
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- return null;
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- }
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- }
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+ return this.getChunkAtIfLoadedMainThread(i, j); // Paper - optimise for loaded chunks
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}
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}
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index 803fe43be1..601a68ad60 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -259,6 +259,14 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
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@Override
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public Chunk getChunkAt(int i, int j) {
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+ // Paper start - optimise this for loaded chunks
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+ if (Thread.currentThread() == this.serverThread) {
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+ Chunk ifLoaded = ((WorldServer) this).getChunkProvider().getChunkAtIfLoadedMainThread(i, j);
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+ if (ifLoaded != null) {
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+ return ifLoaded;
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+ }
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+ }
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+ // Paper end
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return (Chunk) this.getChunkAt(i, j, ChunkStatus.FULL);
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}
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--
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2.25.1
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