systemd-analyze #

Example: show boot time #

bash
systemd-analyze time

text
Startup finished in 546ms (userspace)
graphical.target reached after 538ms in userspace

Example: show boot time for each unit #

bash
systemd-analyze blame

text
3.437s docker.service
 259ms dev-sdb.device
 235ms user@0.service
 223ms containerd.service
 174ms networkd-dispatcher.service
 149ms systemd-resolved.service
 113ms systemd-logind.service
  87ms keyboard-setup.service
  81ms systemd-journal-flush.service
  73ms systemd-udevd.service
  69ms e2scrub_reap.service
  65ms apport.service
  54ms systemd-udev-trigger.service
  36ms systemd-journald.service
  27ms rsyslog.service

Example: show critical chain #

bash
systemd-analyze critical-chain [UNIT...]

text
The time when unit became active or started is printed after the "@" character.
The time the unit took to start is printed after the "+" character.

graphical.target @722ms
└─multi-user.target @722ms
  └─networkd-dispatcher.service @486ms +234ms
    └─basic.target @474ms
      └─sockets.target @473ms
        └─docker.socket @418ms +9ms
          └─sysinit.target @407ms
            └─systemd-update-utmp.service @396ms +9ms
              └─systemd-tmpfiles-setup.service @367ms +20ms
                └─systemd-journal-flush.service @256ms +108ms
                  └─systemd-journald.service @208ms +46ms
                    └─systemd-journald.socket @196ms
                      └─system.slice @160ms
                        └─-.slice @160ms