Systemd-analyze — Analyze and debug system manager

Czas uruchamiania procesu podczas startu

systemd-analyze blame

$ systemd-analyze blame
         32.875s pmlogger.service
         20.905s systemd-networkd-wait-online.service
         13.299s dev-vda1.device
         ...
            23ms sysroot.mount
            11ms initrd-udevadm-cleanup-db.service
             3ms sys-kernel-config.mount

systemd-analyze critical-chain

$ systemd-analyze critical-chain
multi-user.target @47.820s
└─pmie.service @35.968s +548ms
  └─pmcd.service @33.715s +2.247s
    └─network-online.target @33.712s
      └─systemd-networkd-wait-online.service @12.804s +20.905s
        └─systemd-networkd.service @11.109s +1.690s
          └─systemd-udevd.service @9.201s +1.904s
            └─systemd-tmpfiles-setup-dev.service @7.306s +1.776s
              └─kmod-static-nodes.service @6.976s +177ms
                └─systemd-journald.socket
                  └─system.slice
                    └─-.slice

Czas bootowania maszyny

pi@chris:~ $ sudo systemd-analyze time
Startup finished in 3.425s (kernel) + 31.914s (userspace) = 35.340s
graphical.target reached after 31.833s in userspace
pi@chris:~ $

Źródło : https://www.freedesktop.org/software/systemd/man/systemd-analyze.html