OpenSource/PaperMC
OpenSource/PaperMC
1
0
Fork 0
mirror of https://github.com/PaperMC/Paper.git synced 2024-12-28 23:38:25 +01:00
Code Issues Projects Releases Packages Wiki Activity

Merge pull request #163 from cybertiger/region-file-cache

Browse source 
Sanitise RegionFileCache and make cache size configurable.
This commit is contained in:
Zach Brown 2016-03-29 11:15:30 -05:00
commit 0c7a0d7c98
1 changed files with 79 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

79
Spigot-Server-Patches/Sanitise-RegionFileCache-and-make-configurable.patch Normal file
View file

@ -0,0 +1,79 @@
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 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -0,0 +0,0 @@ public class PaperConfig {
public static void healthDeath() {
setHealthBeforeDeathEvent = getBoolean("settings.set-health-before-death-event", false);
}
+
+ public static int regionFileCacheSize = 256;
+ private static void regionFileCacheSize() {
+ regionFileCacheSize = getInt("settings.region-file-cache-size", 256);
+ }
}
diff --git a/src/main/java/net/minecraft/server/RegionFileCache.java b/src/main/java/net/minecraft/server/RegionFileCache.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/RegionFileCache.java
+++ b/src/main/java/net/minecraft/server/RegionFileCache.java
@@ -0,0 +0,0 @@ import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
+import com.destroystokyo.paper.PaperConfig; // Paper
+import java.util.LinkedHashMap; // Paper
public class RegionFileCache {
- public static final Map<File, RegionFile> a = Maps.newHashMap(); // Spigot - private -> public
+ public static final Map<File, RegionFile> a = new LinkedHashMap(PaperConfig.regionFileCacheSize, 0.75f, true); // Spigot - private -> public, Paper - HashMap -> LinkedHashMap
// Paper start
public static synchronized RegionFile a(File file, int i, int j) {
@@ -0,0 +0,0 @@ public class RegionFileCache {
file1.mkdirs();
}
- if (RegionFileCache.a.size() >= 256) {
- a();
+ if (RegionFileCache.a.size() >= PaperConfig.regionFileCacheSize) { // Paper
+ trimCache(); // Paper
}
RegionFile regionfile1 = new RegionFile(file2);
@@ -0,0 +0,0 @@ public class RegionFileCache {
}
}
+ // Paper Start
+ private static synchronized void trimCache() {
+ Iterator<Map.Entry<File, RegionFile>> itr = RegionFileCache.a.entrySet().iterator();
+ int count = RegionFileCache.a.size() - PaperConfig.regionFileCacheSize;
+ while (count-- >= 0 && itr.hasNext()) {
+ try {
+ itr.next().getValue().c();
+ } catch (IOException ioexception) {
+ ioexception.printStackTrace();
+ ServerInternalException.reportInternalException(ioexception);
+ }
+ itr.remove();
+ }
+ }
+ // Paper End
+
public static synchronized void a() {
Iterator iterator = RegionFileCache.a.values().iterator();
--