bc127ea819
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: eec4aab0 SPIGOT-6657: Add getPlayer to SheepDyeWoolEvent 205213c6 SPIGOT-6656: CauldronLevelChangeEvent is not fired correctly when dripstone fills the cauldron CraftBukkit Changes: b8c522d5 SPIGOT-6657: Add getPlayer to SheepDyeWoolEvent f04a77dc SPIGOT-6656: CauldronLevelChangeEvent is not fired correctly when dripstone fills the cauldron d1dbcebc SPIGOT-6653: Canceling snow bucket placement removes snow from bucket 4f34a67b #891: Fix scheduler task ID overflow and duplication issues Spigot Changes: d03d7f12 BUILDTOOLS-604: Rebuild patches
31 lines
1.5 KiB
Diff
31 lines
1.5 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: Mon, 4 May 2020 01:08:56 -0400
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Subject: [PATCH] Set cap on JDK per-thread native byte buffer cache
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See: https://www.evanjones.ca/java-bytebuffer-leak.html
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This is potentially a source of lots of native memory usage.
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We are clearly seeing native usage upwards to 1-4GB which doesn't make sense.
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Region File usage fixed in previous patch should of tecnically only been somewhat
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temporary until GC finally gets it some time later, but between all the various
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plugins doing IO on various threads, this hidden detail of the JDK could be
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keeping long lived large direct buffers in cache.
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Set system properly at server startup if not set already to help protect from this.
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diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
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index 98be7909a892a8a566d68ef693d1093791aa902b..f197d63c618b25c139852809c0b0a6e313c83f18 100644
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--- a/src/main/java/org/bukkit/craftbukkit/Main.java
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+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
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@@ -28,6 +28,7 @@ public class Main {
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}
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// Paper end
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// Todo: Installation script
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+ if (System.getProperty("jdk.nio.maxCachedBufferSize") == null) System.setProperty("jdk.nio.maxCachedBufferSize", "262144"); // Paper - cap per-thread NIO cache size
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OptionParser parser = new OptionParser() {
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{
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acceptsAll(Main.asList("?", "help"), "Show the help");
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