diff --git a/.gitignore b/.gitignore
index 929d53bf21e45076aa534bbcb3b875eed49086a1..077661508ab0ed479ff5b9affc2b09b3ab1a9322 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@
 /.project
 /.settings/org.eclipse.jdt.core.prefs
 /bin/
+/build
diff --git a/testdata/kieker-20141008-101258830-UTC-000-Thread-1.dat b/example monitoring logs/kieker-20141008-101258830-UTC-000-Thread-1.dat
similarity index 100%
rename from testdata/kieker-20141008-101258830-UTC-000-Thread-1.dat
rename to example monitoring logs/kieker-20141008-101258830-UTC-000-Thread-1.dat
diff --git a/testdata/kieker.map b/example monitoring logs/kieker.map
similarity index 100%
rename from testdata/kieker.map
rename to example monitoring logs/kieker.map
diff --git a/src/main/java/kieker/gui/model/domain/ExecutionEntry.java b/src/main/java/kieker/gui/model/domain/ExecutionEntry.java
index e3fb7e1e4a79a0fe09c17ce2ab9262aea4315ad2..ff5de283e4d5196c4ab1d60af525079d12383d46 100644
--- a/src/main/java/kieker/gui/model/domain/ExecutionEntry.java
+++ b/src/main/java/kieker/gui/model/domain/ExecutionEntry.java
@@ -67,8 +67,6 @@ public final class ExecutionEntry {
 
 	public void setDuration(final long duration) {
 		this.duration = duration;
-
-		this.updatePercent();
 	}
 
 	public boolean isFailed() {
@@ -106,23 +104,22 @@ public final class ExecutionEntry {
 	public void addExecutionEntry(final ExecutionEntry entry) {
 		this.children.add(entry);
 		entry.parent = this;
-
-		this.updatePercent();
 	}
 
 	public ExecutionEntry getParent() {
 		return this.parent;
 	}
 
+	public void recalculateValues() {
+		this.updatePercent();
+	}
+
 	private void updatePercent() {
 		if (this.parent != null) {
 			this.percent = (this.duration * 100.0f) / this.parent.duration;
 		} else {
 			this.percent = 100.0f;
 		}
-		for (final ExecutionEntry child : this.children) {
-			child.updatePercent();
-		}
 	}
 
 	@Override
diff --git a/src/main/java/kieker/gui/model/importer/filter/TraceReconstructor.java b/src/main/java/kieker/gui/model/importer/filter/TraceReconstructor.java
index c7058aafe344c14ffcf4124f3d6661b067a31ce4..815b79fb2f2df96f305e36c94607f4959a0a14df 100644
--- a/src/main/java/kieker/gui/model/importer/filter/TraceReconstructor.java
+++ b/src/main/java/kieker/gui/model/importer/filter/TraceReconstructor.java
@@ -117,6 +117,7 @@ public final class TraceReconstructor extends AbstractConsumerStage<IFlowRecord>
 		}
 
 		public ExecutionEntry reconstructTrace() {
+			this.root.recalculateValues();
 			return this.root;
 		}
 
diff --git a/src/main/java/kieker/gui/view/MainWindow.java b/src/main/java/kieker/gui/view/MainWindow.java
index 87206fca54c892245eaf797a4c90738f209c58e5..a092d254e73993c49b862e4abd4b35639b78e8b9 100644
--- a/src/main/java/kieker/gui/view/MainWindow.java
+++ b/src/main/java/kieker/gui/view/MainWindow.java
@@ -120,7 +120,6 @@ public final class MainWindow {
 		final Display display = Display.getDefault();
 		this.createContents();
 		this.addLogic();
-		DataSource.getInstance().loadMonitoringLogFromFS("testdata");
 		this.shell.open();
 		this.shell.layout();
 		while (!this.shell.isDisposed()) {