systemd

$ systemd-analyze blame
         17.049s plymouth-quit-wait.service
         16.416s amd-disable-c6.service
         14.260s mount_exchange.service
         13.668s dev-sda7.device
         13.336s snapd.service
         13.272s networkd-dispatcher.service
         11.383s systemd-journal-flush.service
         10.891s NetworkManager-wait-online.service
          8.126s ModemManager.service
          8.035s NetworkManager.service
          6.814s dev-loop0.device
          6.663s virtualbox.service
          6.639s dev-loop1.device
          6.604s udisks2.service
          6.569s dev-loop2.device
          6.344s resolvconf-pull-resolved.service
          4.828s accounts-daemon.service
          3.735s wpa_supplicant.service
          3.397s rsyslog.service
          3.396s systemd-fsck@dev-disk-by\x2duuid-A6E5\x2d9DA5.service
          3.289s ufw.service
          2.844s systemd-udevd.service
          2.733s apparmor.service