diff --git a/src/slic3r/GUI/NotificationManager.cpp b/src/slic3r/GUI/NotificationManager.cpp
index ab2e46650..28feb65d0 100644
--- a/src/slic3r/GUI/NotificationManager.cpp
+++ b/src/slic3r/GUI/NotificationManager.cpp
@@ -1039,7 +1039,6 @@ void NotificationManager::render_notifications(GLCanvas3D& canvas, float overlay
 		}
 		
 	}
-	BOOST_LOG_TRIVIAL(error) << "render " << GLCanvas3D::timestamp_now() - m_last_render;
 	m_last_render = GLCanvas3D::timestamp_now();
 }
 
@@ -1078,10 +1077,6 @@ bool NotificationManager::update_notifications(GLCanvas3D& canvas)
 			++it;
 	}
 
-	BOOST_LOG_TRIVIAL(error) << "update " << request_render << " : " << next_render <<" : " << GLCanvas3D::timestamp_now() - m_last_update;
-	m_last_update = GLCanvas3D::timestamp_now();
-	//BOOST_LOG_TRIVIAL(error) << time_since_render << ":" << next_render;
-
 	// render needed right now
 	//if (next_render < 20)
 	//	request_render = true;
diff --git a/src/slic3r/GUI/NotificationManager.hpp b/src/slic3r/GUI/NotificationManager.hpp
index 0d1cd9996..768f941a7 100644
--- a/src/slic3r/GUI/NotificationManager.hpp
+++ b/src/slic3r/GUI/NotificationManager.hpp
@@ -413,7 +413,6 @@ private:
 	bool                         m_move_from_overlay { false };
 	// Timestamp of last rendering
 	int64_t						 m_last_render { 0LL };
-	int64_t						 m_last_update { 0LL };
 
 	//prepared (basic) notifications
 	const std::vector<NotificationData> basic_notifications = {