diff --git a/libs/backends/portaudio/portaudio_backend.cc b/libs/backends/portaudio/portaudio_backend.cc
index 74ca7a561c..8298af53ff 100644
--- a/libs/backends/portaudio/portaudio_backend.cc
+++ b/libs/backends/portaudio/portaudio_backend.cc
@@ -736,7 +736,7 @@ PortAudioBackend::process_callback(const float* input,
                                    PaStreamCallbackFlags statusFlags)
 {
 	PBD::WaitTimerRAII tr (dsp_stats[DeviceWait]);
-	PBD::TimerRAII tr2 (dsp_stats[RunLoop], true);
+	PBD::TimerRAII tr2 (dsp_stats[RunLoop]);
 
 	_active = true;
 
diff --git a/libs/pbd/pbd/timing.h b/libs/pbd/pbd/timing.h
index 492fd0e52c..f73cb873b5 100644
--- a/libs/pbd/pbd/timing.h
+++ b/libs/pbd/pbd/timing.h
@@ -202,6 +202,7 @@ private:
 
 		if (diff > _max) {
 			_max = diff;
+			std::cerr << "max reset to " << _max << " from " << m_start_val << " .. " << m_last_val << " (diff = " << diff << ")\n";
 		}
 		if (diff < _min) {
 			_min = diff;