diff --git a/htroot/PerformanceMemory_p.html b/htroot/PerformanceMemory_p.html
index 78ddae6cd..70f0282af 100644
--- a/htroot/PerformanceMemory_p.html
+++ b/htroot/PerformanceMemory_p.html
@@ -91,11 +91,11 @@
 <td class="small">Chunk Size<br>high/med/low<br>(bytes)</td>
 <td class="small">Empty<br>(avail.)<br>Slots</td>
 <td class="small">Used: High, Medium, Low Prio</td>
-<td class="small">Node-Cache<br>Hit:Miss<br>Uniq:Doub<br>Flush<br></td>
+<td class="small">Node-Cache<br>Hit:Miss<br>Uniq:Doub<br>Del:Flush<br></td>
 <td class="small">&nbsp;<br>Size<br>Max</td>
 <td class="small">&nbsp;<br>Size<br>Current</td>
-<td class="small">Hit-Cache<br>Hit:Miss<br>Uniq:Doub<br>Flush<br></td>
-<td class="small">Miss-Cache<br>Hit:Miss<br>Uniq:Doub<br>Flush<br></td>
+<td class="small">Hit-Cache<br>Hit:Miss<br>Uniq:Doub<br>Del:Flush<br></td>
+<td class="small">Miss-Cache<br>Hit:Miss<br>Uniq:Doub<br>Del:Flush<br></td>
 <td class="small">Used Now</td>
 <td class="small">Assigned Max</td>
 <td class="small">Default Max</td>
diff --git a/htroot/PerformanceMemory_p.java b/htroot/PerformanceMemory_p.java
index b7a9842af..f13a10424 100644
--- a/htroot/PerformanceMemory_p.java
+++ b/htroot/PerformanceMemory_p.java
@@ -300,15 +300,15 @@ public class PerformanceMemory_p {
         prop.put("sllow" + db, slt[3]);
         prop.put("slhittmiss" + db, slt[4] + ":" + slt[5]);
         prop.put("sluniqdoub" + db, slt[6] + ":" + slt[7]);
-        prop.put("slflush" + db, slt[8]);
+        prop.put("slflush" + db, slt[8] + ":" + slt[9]);
         prop.put("ochunkmax" + db, ost[0]);
         prop.put("ochunkcur" + db, ost[1]);
         prop.put("ohittmiss" + db, ost[5] + ":" + ost[6]);
         prop.put("ouniqdoub" + db, ost[7] + ":" + ost[8]);
-        prop.put("oflush" + db, ost[9]);
-        prop.put("nhittmiss" + db, ost[10] + ":" + ost[11]);
-        prop.put("nuniqdoub" + db, ost[12] + ":" + ost[13]);
-        prop.put("nflush" + db, ost[14]);
+        prop.put("oflush" + db, ost[9] + ":" + ost[10]);
+        prop.put("nhittmiss" + db, ost[11] + ":" + ost[12]);
+        prop.put("nuniqdoub" + db, ost[13] + ":" + ost[14]);
+        prop.put("nflush" + db, ost[15] + ":" + ost[16]);
         prop.put("used" + db, usd / KB);
         prop.put("good" + db, god / KB);
         prop.put("best" + db, bst / KB);
diff --git a/source/de/anomic/kelondro/kelondroObjectCache.java b/source/de/anomic/kelondro/kelondroObjectCache.java
index 5d9450711..2547c3649 100644
--- a/source/de/anomic/kelondro/kelondroObjectCache.java
+++ b/source/de/anomic/kelondro/kelondroObjectCache.java
@@ -66,8 +66,8 @@ public class kelondroObjectCache {
     private int    maxSize;
     private long   maxAge;
     private long   minMem;
-    private int    readHit, readMiss, writeUnique, writeDouble, cacheFlush;
-    private int    hasnotHit, hasnotMiss, hasnotUnique, hasnotDouble, hasnotFlush;
+    private int    readHit, readMiss, writeUnique, writeDouble, cacheDelete, cacheFlush;
+    private int    hasnotHit, hasnotMiss, hasnotUnique, hasnotDouble, hasnotDelete, hasnotFlush;
     private String name;
     
     public kelondroObjectCache(String name, int maxSize, long maxAge, long minMem) {
@@ -83,11 +83,13 @@ public class kelondroObjectCache {
         this.readMiss = 0;
         this.writeUnique = 0;
         this.writeDouble = 0;
+        this.cacheDelete = 0;
         this.cacheFlush = 0;
         this.hasnotHit = 0;
         this.hasnotMiss = 0;
         this.hasnotUnique = 0;
         this.hasnotDouble = 0;
+        this.hasnotDelete = 0;
         this.hasnotFlush = 0;
     }
 
@@ -136,11 +138,13 @@ public class kelondroObjectCache {
                 Integer.toString(readMiss),
                 Integer.toString(writeUnique),
                 Integer.toString(writeDouble),
+                Integer.toString(cacheDelete),
                 Integer.toString(cacheFlush),
                 Integer.toString(hasnotHit),
                 Integer.toString(hasnotMiss),
                 Integer.toString(hasnotUnique),
                 Integer.toString(hasnotDouble),
+                Integer.toString(hasnotDelete),
                 Integer.toString(hasnotFlush)
                 };
     }
@@ -161,7 +165,9 @@ public class kelondroObjectCache {
                 Integer.toString(Integer.parseInt(a[11]) + Integer.parseInt(b[11])),
                 Integer.toString(Integer.parseInt(a[12]) + Integer.parseInt(b[12])),
                 Integer.toString(Integer.parseInt(a[13]) + Integer.parseInt(b[13])),
-                Integer.toString(Integer.parseInt(a[14]) + Integer.parseInt(b[14]))
+                Integer.toString(Integer.parseInt(a[14]) + Integer.parseInt(b[14])),
+                Integer.toString(Integer.parseInt(a[15]) + Integer.parseInt(b[15])),
+                Integer.toString(Integer.parseInt(a[16]) + Integer.parseInt(b[16]))
         };
     }
     
@@ -190,7 +196,7 @@ public class kelondroObjectCache {
         synchronized(cache) {
             prev = cache.put(key, value);
             ages.setScore(key, intTime(System.currentTimeMillis()));
-            hasnot.deleteScore(key);
+            if (hasnot.deleteScore(key) != 0) hasnotDelete++;
         }
         if (prev == null) this.writeUnique++; else this.writeDouble++;
         flushc();
@@ -205,10 +211,14 @@ public class kelondroObjectCache {
         Object r = null;
         synchronized(cache) {
             r = cache.get(key);
-            ages.setScore(key, intTime(System.currentTimeMillis())); // renew cache update time
+            if (r == null) {
+                this.readMiss++;
+            } else {
+                this.readHit++;
+                ages.setScore(key, intTime(System.currentTimeMillis())); // renew cache update time
+            }
         }
         flushc();
-        if (r == null) this.readMiss++; else this.readHit++;
         return r;
     }
     
@@ -220,7 +230,7 @@ public class kelondroObjectCache {
         if (key == null) return;
         int prev = 0;
         synchronized(cache) {
-            cache.remove(key);
+            if (cache.remove(key) != null) cacheDelete++;
             ages.deleteScore(key);
             prev = hasnot.getScore(key);
             hasnot.setScore(key, intTime(System.currentTimeMillis()));
@@ -259,7 +269,7 @@ public class kelondroObjectCache {
     public void remove(String key) {
         if (key == null) return;
         synchronized(cache) {
-            cache.remove(key);
+            if (cache.remove(key) != null) cacheDelete++;
             ages.deleteScore(key);
             hasnot.setScore(key, intTime(System.currentTimeMillis()));
         }
diff --git a/source/de/anomic/kelondro/kelondroRecords.java b/source/de/anomic/kelondro/kelondroRecords.java
index 869c307ee..106f8392e 100644
--- a/source/de/anomic/kelondro/kelondroRecords.java
+++ b/source/de/anomic/kelondro/kelondroRecords.java
@@ -153,7 +153,7 @@ public class kelondroRecords {
     private int                   cacheSize;    // number of cache records
     private long                  cacheStartup; // startup time; for cache aging
     private kelondroMScoreCluster cacheScore;   // controls cache aging
-    private int readHit, readMiss, writeUnique, writeDouble, cacheFlush;
+    private int readHit, readMiss, writeUnique, writeDouble, cacheDelete, cacheFlush;
     
     // optional logger
     protected Logger theLogger = null;
@@ -443,6 +443,7 @@ public class kelondroRecords {
         this.readMiss = 0;
         this.writeUnique = 0;
         this.writeDouble = 0;
+        this.cacheDelete = 0;
         this.cacheFlush = 0;
     }
     
@@ -476,7 +477,7 @@ public class kelondroRecords {
     }
     
     public int[] cacheNodeStatus() {
-        if (cacheHeaders == null) return new int[]{0,0,0,0,0,0,0,0,0};
+        if (cacheHeaders == null) return new int[]{0,0,0,0,0,0,0,0,0,0};
         return new int[]{
                 cacheSize,
                 cacheHeaders[CP_HIGH].size(),
@@ -486,6 +487,7 @@ public class kelondroRecords {
                 readMiss,
                 writeUnique,
                 writeDouble,
+                cacheDelete,
                 cacheFlush
         };
     }
@@ -533,7 +535,7 @@ public class kelondroRecords {
                     // no cache control for low-priority entries
                     cacheHeaders[CP_LOW].remove(handle);
                 }
-                cacheFlush++;
+                cacheDelete++;
             }
         }
         dispose(handle);
diff --git a/source/de/anomic/kelondro/kelondroTree.java b/source/de/anomic/kelondro/kelondroTree.java
index 19f3cf64a..45b92e9f7 100644
--- a/source/de/anomic/kelondro/kelondroTree.java
+++ b/source/de/anomic/kelondro/kelondroTree.java
@@ -164,7 +164,7 @@ public class kelondroTree extends kelondroRecords implements kelondroIndex {
         if (objectCachePercent > 0) {
             long objectbuffersize = objectCachePercent * buffersize / 100;
             long nodecachesize = objectbuffersize / cacheObjectChunkSize();
-            this.objectCache = new kelondroObjectCache(this.filename, (int) nodecachesize, nodecachesize * 300 , 4*1024*1024);
+            this.objectCache = new kelondroObjectCache(this.filename, (int) nodecachesize, nodecachesize * 3000 , 2*1024*1024);
         } else {
             this.objectCache = null;
         }
diff --git a/yacy.init b/yacy.init
index 311463270..0eabe6004 100644
--- a/yacy.init
+++ b/yacy.init
@@ -499,10 +499,10 @@ xpstopw=true
 ramCacheRWI     =  8388608
 
 # ram cache for responseHeader.db
-ramCacheHTTP    =  4194304
+ramCacheHTTP    =  1048576
 
 # ram cache for urlHash.db
-ramCacheLURL    =  4194304
+ramCacheLURL    =  8388608
 
 # ram cache for urlNotice.db
 ramCacheNURL    =  4194304
@@ -511,7 +511,7 @@ ramCacheNURL    =  4194304
 ramCacheEURL    =     8192
 
 # ram cache for seedDBs
-ramCacheDHT     =     8192
+ramCacheDHT     =   131072
 
 # ram cache for message.db
 ramCacheMessage =     8192
@@ -523,10 +523,10 @@ ramCacheWiki    =     8192
 ramCacheBlog    =     2048
 
 # ram cache for news1.db
-ramCacheNews    =     8192
+ramCacheNews    =  1048576
 
 # ram cache for robotsTxt.db
-ramCacheRobots  =  2097152
+ramCacheRobots  =  4194304
 
 # ram cache for crawlProfile.db
 ramCacheProfiles  =   8192