diff --git a/src/main/java/org/ids_mannheim/ValueThenKeyComparator.java b/src/main/java/org/ids_mannheim/FreqListEntryComparator.java
similarity index 74%
rename from src/main/java/org/ids_mannheim/ValueThenKeyComparator.java
rename to src/main/java/org/ids_mannheim/FreqListEntryComparator.java
index 1623462..fd5600d 100644
--- a/src/main/java/org/ids_mannheim/ValueThenKeyComparator.java
+++ b/src/main/java/org/ids_mannheim/FreqListEntryComparator.java
@@ -3,12 +3,12 @@
 import java.util.Comparator;
 import java.util.Map;
 
-public class ValueThenKeyComparator<K extends Comparable<? super K>,
+public class FreqListEntryComparator<K extends Comparable<? super K>,
         V extends Comparable<? super V>>
         implements Comparator<Map.Entry<K, V>> {
 
     public int compare(Map.Entry<K, V> a, Map.Entry<K, V> b) {
-        int cmp1 = a.getValue().compareTo(b.getValue());
+        int cmp1 = b.getValue().compareTo(a.getValue());
         if (cmp1 != 0) {
             return cmp1;
         } else {
diff --git a/src/main/java/org/ids_mannheim/TotalNGram.java b/src/main/java/org/ids_mannheim/TotalNGram.java
index 2d19a1f..3d4149c 100644
--- a/src/main/java/org/ids_mannheim/TotalNGram.java
+++ b/src/main/java/org/ids_mannheim/TotalNGram.java
@@ -130,10 +130,12 @@
         es.shutdown();
         boolean finished = es.awaitTermination(120, TimeUnit.HOURS);
         etaPrinter.finish();
+        logger.info("Sorting and writing frequency table.");
         System.err.println("Sorting and writing frequency table.");
-        map.entrySet().stream()
-                .sorted(Collections.reverseOrder(new ValueThenKeyComparator<>()))
-                .forEach(entry -> output_stream.println(entry.getKey() + entry.getValue().toString()));
+        map.entrySet().parallelStream()
+                .sorted(new FreqListEntryComparator<>())
+                .forEachOrdered(entry -> output_stream.println(entry.getKey() + entry.getValue().toString()));
+        logger.info("Calculating column sums.");
         System.err.println("Calculating column sums.");
         IntStream.rangeClosed(1, FOLDS)
                 .forEach(i -> output_stream.print("\t" + map.values()