From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Antony Riley 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(); }