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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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
index f207abbe757ad403a29a7a012903aaa88d5b1685..7d726757d1083011a09c9f2ca37c33a81360e964 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -219,4 +219,9 @@ public class PaperConfig {
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);
+ }
}
diff --git a/src/main/java/net/minecraft/server/RegionFileCache.java b/src/main/java/net/minecraft/server/RegionFileCache.java
index 4cff831de2128cd346f1f1627f0915d534b0d3bf..0305f3c93e8485552890dd5eca8e79277e2bb886 100644
--- a/src/main/java/net/minecraft/server/RegionFileCache.java
+++ b/src/main/java/net/minecraft/server/RegionFileCache.java
@@ -27,7 +27,7 @@ public final class RegionFileCache implements AutoCloseable {
if (regionfile != null) {
return regionfile;
} else {
- if (this.cache.size() >= 256) {
+ if (this.cache.size() >= com.destroystokyo.paper.PaperConfig.regionFileCacheSize) { // Paper - configurable
((RegionFile) this.cache.removeLast()).close();
}
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