Performance improvements
diff --git a/src/main/resources/log4j.properties b/src/main/resources/log4j.properties
index 3e26bdd..e876668 100644
--- a/src/main/resources/log4j.properties
+++ b/src/main/resources/log4j.properties
@@ -2,18 +2,24 @@
# log4j.rootLogger = DEBUG, stdout
+# Spans:
#log4j.logger.de.ids_mannheim.korap.query.spans.ElementSpans = TRACE, stdout
+#log4j.logger.de.ids_mannheim.korap.query.spans.KorapTermSpan = TRACE, stdout
#log4j.logger.de.ids_mannheim.korap.query.spans.WithinSpans = TRACE, stdout
#log4j.logger.de.ids_mannheim.korap.query.SpanNextQuery = TRACE, stdout
#log4j.logger.de.ids_mannheim.korap.query.spans.NextSpans = TRACE, stdout
#log4j.logger.de.ids_mannheim.korap.query.spans.SimpleSpans = TRACE, stdout
-#log4j.logger.de.ids_mannheim.korap.query.spans.KorapTermSpan = TRACE, stdout
#log4j.logger.de.ids_mannheim.korap.query.spans.ClassSpans = TRACE, stdout
-# log4j.logger.de.ids_mannheim.korap.query.spans.MatchSpans = TRACE, stdout
-#log4j.logger.de.ids_mannheim.korap.KorapIndex = TRACE, stdout
-#log4j.logger.de.ids_mannheim.korap.KorapMatch = TRACE, stdout
+#log4j.logger.de.ids_mannheim.korap.query.spans.MatchSpans = TRACE, stdout
+
+# Collections
#log4j.logger.de.ids_mannheim.korap.KorapFilter = TRACE, stdout
#log4j.logger.de.ids_mannheim.korap.KorapCollection = TRACE, stdout
+
+
+# Results:
+#log4j.logger.de.ids_mannheim.korap.KorapIndex = TRACE, stdout
+#log4j.logger.de.ids_mannheim.korap.KorapMatch = TRACE, stdout
#log4j.logger.de.ids_mannheim.korap.index.PositionsToOffset = TRACE, stdout
#log4j.logger.de.ids_mannheim.korap.index.TestSegmentIndex = TRACE, stdout