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Use dedicated thread for main thread blocking chunk loads

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In most cases, this change won't benefit much. However, there
exists the possibility that your Chunk Task threads are all busy
doing super slow work such as converting chunks.

If this occurs, the main thread blocking tasks, even at highest priority,
has to wait for some thread to become available.

This change gives us a waiting thread used only for main thread blocking
tasks, as well as an increased thread priority level, so that the OS
will give priority to this thread over the other threads.

This is more about guarantees, and won't be any real performanc boost
to anyone who has low or fast activity on their chunk tasks anyways.

But not all of us force upgrade our worlds, and this can be a life saver.

also reordered some patches because multiple PR's were merged.
This commit is contained in:
Aikar
2020-04-11 04:40:00 -04:00
parent c8367bb129
commit 98218db96f
4 changed files with 90 additions and 28 deletions
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2
Spigot-Server-Patches/Expose-MinecraftServer-isRunning.patch
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@@ -6,7 +6,7 @@ Subject: [PATCH] Expose MinecraftServer#isRunning
This allows for plugins to detect if the server is actually turning off in onDisable rather than just plugins reloading.
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index b9a398bc5..32121e87b 100644
index 53b71b7915..1a3c6aae18 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -0,0 +0,0 @@ public final class CraftServer implements Server {