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90fe0d58a5
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: 897a0a23 SPIGOT-5753: Back PotionType by a minecraft registry 255b2aa1 SPIGOT-7080: Add World#locateNearestBiome ff984826 Remove javadoc.io doc links CraftBukkit Changes: 71b0135cc SPIGOT-5753: Back PotionType by a minecraft registry a6bcb8489 SPIGOT-7080: Add World#locateNearestBiome ad0e57434 SPIGOT-7502: CraftMetaItem - cannot deserialize BlockStateTag b3efca57a SPIGOT-6400: Use Mockito instead of InvocationHandler 38c599f9d PR-1272: Only allow one entity in CraftItem instead of two f065271ac SPIGOT-7498: ChunkSnapshot.getBlockEmittedLight() gets 64 blocks upper in Overworld Spigot Changes: e0e223fe Remove javadoc.io doc links
32 lines
1.4 KiB
Diff
32 lines
1.4 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: Mon, 30 Aug 2021 04:26:40 -0700
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Subject: [PATCH] Reduce worldgen thread worker count for low core count CPUs
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diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
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index 25b2d7016b60ee9bad0a2fb4a2c7c8ee34af50eb..a17e61f6f59eae179b76179985a9bd7a32a7e40a 100644
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--- a/src/main/java/net/minecraft/Util.java
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+++ b/src/main/java/net/minecraft/Util.java
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@@ -148,7 +148,19 @@ public class Util {
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private static ExecutorService makeExecutor(String s, int priorityModifier) { // Paper - add priority
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// Paper start - use simpler thread pool that allows 1 thread
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- int i = Math.min(8, Math.max(Runtime.getRuntime().availableProcessors() - 2, 1));
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+ // Paper start - also try to avoid suffocating the system with the worldgen workers
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+ int cpus = Runtime.getRuntime().availableProcessors() / 2;
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+ int i;
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+ if (cpus <= 4) {
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+ i = cpus <= 2 ? 1 : 2;
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+ } else if (cpus <= 8) {
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+ // [5, 8]
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+ i = Math.max(3, cpus - 2);
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+ } else {
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+ i = cpus * 2 / 3;
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+ }
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+ i = Math.min(8, i);
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+ // Paper end - also try to avoid suffocating the system with the worldgen workers
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i = Integer.getInteger("Paper.WorkerThreadCount", i);
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ExecutorService executorService;
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