Hi, In old systemd (not sure which version) there used to be a way to describe a realtime priority with cgroups. Mpd.service has these values in it's service definition file [1]. From a brief research I've done this functionality removed and there's no alternative. Anyone knows if there are plans to implement this back to systemd? Other distros face similar issues [2]. [1]: journal systemd[1]: [/usr/lib/systemd/system/mpd.service:17] Unknown lvalue 'ControlGroup' in section 'Service' systemd[1]: [/usr/lib/systemd/system/mpd.service:20] Unknown lvalue 'ControlGroupAttribute' in section 'Service' [2]: http://bugs.musicpd.org/view.php?id=4262