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 16707c734f33f6080875e5e3ea338affe2d2fa0c..584d3a0f839cbcb6b3161f695c7f7d4869d04577 100644 --- a/src/main/java/com/destroystokyo/paper/PaperConfig.java +++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java @@ -239,4 +239,9 @@ 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/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java index eaf22cec54b512e0f57606f50627d5fe9b39bd5c..deb852aa0fb2ad55a94d3c7ee542a0cc8013be42 100644 --- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java +++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java @@ -36,7 +36,7 @@ public class RegionFileStorage implements AutoCloseable { if (regionfile != null) { return regionfile; } else { - if (this.regionCache.size() >= 256) { + if (this.regionCache.size() >= com.destroystokyo.paper.PaperConfig.regionFileCacheSize) { // Paper - configurable ((RegionFile) this.regionCache.removeLast()).close(); }