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Per MC-138093 comments, ForkJoinPool uses unlimited threads if parallelism is ever 1. A 2 core machine will end up with 1 with the change I had previously made, so bumped the min to 2 so we will never trigger the unlimited thread situation. This aligns the min back with Spigot, but allows use of more threads on systems with more cores.
20 lines
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1.2 KiB
Diff
20 lines
No EOL
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Tue, 23 Oct 2018 23:14:38 -0400
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Subject: [PATCH] Use more reasonable thread count default for bootstrap
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diff --git a/src/main/java/net/minecraft/server/DataConverterRegistry.java b/src/main/java/net/minecraft/server/DataConverterRegistry.java
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index 7ac07ac07ac0..7ac07ac07ac0 100644
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--- a/src/main/java/net/minecraft/server/DataConverterRegistry.java
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+++ b/src/main/java/net/minecraft/server/DataConverterRegistry.java
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@@ -0,0 +0,0 @@ public class DataConverterRegistry {
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a(datafixerbuilder);
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// CraftBukkit start
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- ForkJoinPool pool = new ForkJoinPool(Integer.getInteger("net.minecraft.server.DataConverterRegistry.bootstrapThreads", Math.min(Runtime.getRuntime().availableProcessors(), 2)));
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+ ForkJoinPool pool = new ForkJoinPool(Integer.getInteger("net.minecraft.server.DataConverterRegistry.bootstrapThreads", Math.min(6, Math.max(Runtime.getRuntime().availableProcessors() - 2, 2)))); // Paper - use more reasonable default - 2 is hard minimum to avoid using unlimited threads
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DataFixer fixer = datafixerbuilder.build(pool);
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pool.shutdown();
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return fixer;
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--
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