From b32630a53238ec990917332b269e5e15d870be5a 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 6cc99ffe43..0cef1853f5 100644 --- 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 { 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 1ea9e5bb43..21b3b06f53 100644 --- a/src/main/java/net/minecraft/server/RegionFileCache.java +++ b/src/main/java/net/minecraft/server/RegionFileCache.java @@ -8,6 +8,7 @@ import java.io.DataOutputStream; import java.io.File; import java.io.IOException; import javax.annotation.Nullable; +import com.destroystokyo.paper.PaperConfig; // Paper public abstract class RegionFileCache implements AutoCloseable { @@ -25,7 +26,7 @@ public abstract class RegionFileCache implements AutoCloseable { if (regionfile != null) { return regionfile; } else { - if (this.cache.size() >= 256) { + if (this.cache.size() >= PaperConfig.regionFileCacheSize) { // Paper - configurable ((RegionFile) this.cache.removeLast()).close(); } -- 2.21.0