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Paper/Spigot-Server-Patches/0078-Sanitise-RegionFileCache-and-make-configurable.patch

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From f33920c8054472e73f9e712da3d32a5b34469cf2 Mon Sep 17 00:00:00 2001
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From: Antony Riley <antony@cyberiantiger.org>
Date: Tue, 29 Mar 2016 08:22:55 +0300
Subject: [PATCH] Sanitise RegionFileCache and make configurable.
RegionFileCache prior to this patch would close every single open region
file upon reaching a size of 256.
This patch modifies that behaviour so it closes the the least recently
used RegionFile.
The implementation uses a LinkedHashMap as an LRU cache (modified from HashMap).
The maximum size of the RegionFileCache is also made configurable.
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index 6ef5bb9f3..d500cd75a 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -218,4 +218,9 @@ public class PaperConfig {
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private static void loadPermsBeforePlugins() {
loadPermsBeforePlugins = getBoolean("settings.load-permissions-yml-before-plugins", true);
}
+
+ public static int regionFileCacheSize = 256;
+ private static void regionFileCacheSize() {
+ regionFileCacheSize = Math.max(getInt("settings.region-file-cache-size", 256), 4);
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+ }
}
diff --git a/src/main/java/net/minecraft/server/RegionFileCache.java b/src/main/java/net/minecraft/server/RegionFileCache.java
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index 2fe27b460..57ce53cfd 100644
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--- a/src/main/java/net/minecraft/server/RegionFileCache.java
+++ b/src/main/java/net/minecraft/server/RegionFileCache.java
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@@ -25,7 +25,7 @@ public final class RegionFileCache implements AutoCloseable {
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if (regionfile != null) {
return regionfile;
} else {
- if (this.cache.size() >= 256) {
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+ if (this.cache.size() >= com.destroystokyo.paper.PaperConfig.regionFileCacheSize) { // Paper - configurable
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((RegionFile) this.cache.removeLast()).close();
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}
--
2.25.0.windows.1
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