diff --git a/gtk2_ardour/midi_region_view.cc b/gtk2_ardour/midi_region_view.cc
index 33be45d452..3cba8036c1 100644
--- a/gtk2_ardour/midi_region_view.cc
+++ b/gtk2_ardour/midi_region_view.cc
@@ -1093,6 +1093,8 @@ MidiRegionView::model_changed()
 		return;
 	}
 
+	Timing t;
+
 	if (_active_notes) {
 		// Currently recording
 		const samplecnt_t zoom = trackview.editor().get_current_zoom();
@@ -1223,6 +1225,9 @@ MidiRegionView::model_changed()
 	_marked_for_selection.clear ();
 	_marked_for_velocity.clear ();
 	_pending_note_selection.clear ();
+
+	t.update ();
+	std::cerr << "REDISPLAY(model) of " << region()->name() << " complete after " << t.elapsed_msecs() << std::endl;
 }
 
 void
@@ -1232,6 +1237,8 @@ MidiRegionView::view_changed()
 		return;
 	}
 
+	Timing t;
+
 	if (_active_notes) {
 		// Currently recording
 		const samplecnt_t zoom = trackview.editor().get_current_zoom();
@@ -1280,6 +1287,9 @@ MidiRegionView::view_changed()
 
 	update_sysexes();
 	update_patch_changes ();
+
+	t.update ();
+	std::cerr << "REDISPLAY(view) of " << region()->name() << " complete after " << t.elapsed_msecs() << std::endl;
 }
 
 void