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Add weak reference based cache for chunk snapshots

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This commit is contained in:
Mike Primm 2011-07-14 01:08:28 -05:00
parent eb87231926
commit 66ca5199e3
6 changed files with 221 additions and 19 deletions
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13
src/main/java/org/dynmap/MapManager.java
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@ -1,6 +1,7 @@
package org.dynmap;
import java.io.File;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
@ -15,6 +16,8 @@ import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import org.bukkit.ChunkSnapshot;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.scheduler.BukkitScheduler;
@ -22,9 +25,11 @@ import org.bukkit.command.CommandSender;
import org.dynmap.DynmapWorld.AutoGenerateOption;
import org.dynmap.debug.Debug;
import org.dynmap.hdmap.HDMapManager;
import org.dynmap.utils.LRULinkedHashMap;
import org.dynmap.utils.LegacyMapChunkCache;
import org.dynmap.utils.MapChunkCache;
import org.dynmap.utils.NewMapChunkCache;
import org.dynmap.utils.SnapshotCache;
public class MapManager {
public AsynchronousQueue<MapTile> tileQueue;
@ -50,6 +55,7 @@ public class MapManager {
public static MapManager mapman; /* Our singleton */
public HDMapManager hdmapman;
public SnapshotCache sscache;
/* Thread pool for processing renders */
private DynmapScheduledThreadPoolExecutor renderpool;
@ -328,7 +334,8 @@ public class MapManager {
hdmapman.loadHDShaders(shadercfg);
hdmapman.loadHDPerspectives(perspectivecfg);
hdmapman.loadHDLightings(lightingscfg);
sscache = new SnapshotCache(configuration.getInteger("snapshotcachesize", 500));
this.tileQueue = new AsynchronousQueue<MapTile>(new Handler<MapTile>() {
@Override
public void handle(MapTile t) {
@ -623,6 +630,7 @@ public class MapManager {
}
sender.sendMessage(" TOTALS: processed=" + tot.loggedcnt + ", rendered=" + tot.renderedcnt +
", updated=" + tot.updatedcnt + ", transparent=" + tot.transparentcnt);
sender.sendMessage(" Cache hit rate: " + sscache.getHitRate() + "%");
}
/**
* Reset statistics
@ -639,6 +647,7 @@ public class MapManager {
ms.transparentcnt = 0;
}
}
sscache.resetStats();
sender.sendMessage("Tile Render Statistics reset");
}
}
}