Changeset 31609 in osm

Timestamp:

2015-10-11T22:31:46+02:00 (9 years ago)

Author:

wiktorn

Message:

All access to MemoryTIleCache will move cached object to the front of LRU queue

When only loaded tiles are moved to the front of the queue of LRU cache, when working
near the cache size limit, new objects are fairly quickly removed from the caches leading
to "flickering" of the tiles and high CPU usage.

Changing this to simple LRU policy removes the effect

File:

• applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/MemoryTileCache.java (modified) (1 diff)

applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/MemoryTileCache.java

@@ -64 +64 @@
         if (entry == null)
             return null;
-        // We don't care about placeholder tiles and hourglass image tiles, the
-        // important tiles are the loaded ones
-        if (entry.tile.isLoaded())
-            lruTiles.moveElementToFirstPos(entry);
+        lruTiles.moveElementToFirstPos(entry);
         return entry.tile;
     }