Önyükleme sürecinin süre bilgilerini görmek için:
# systemd-analyze Startup finished in 1.457s (kernel) + 1.366s (initrd) + 15.694s (userspace) = 18.518s sdsd
Önyükleme sürecindeki görevlerin herbirinin harcadığı süreyi görmek için:
# systemd-analyze blame
8.125s kdump.service
5.313s NetworkManager-wait-online.service
3.905s cloud-init.service
3.139s dev-xvda2.device
...
8ms sys-kernel-config.mount
7ms systemd-update-utmp-runlevel.service
6ms named-setup-rndc.service
3ms systemd-tmpfiles-clean.service
Önyükleme sürecindeki (toplam yükleme süresini doğrudan belirleyen) kritik görevler zincirini gözlemek için:
# systemd-analyze critical-chain
The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.
multi-user.target @12.720s
`-cloud-final.service @12.086s +634ms
`-cloud-config.service @11.468s +617ms
`-cloud-config.target @11.467s
`-cloud-init.service @7.561s +3.905s
...
Herhangi bir servisin (örnekte firewall) kritik zincirini görmek için:
# systemd-analyze critical-chain firewalld.service
The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.
firewalld.service +665ms
`-basic.target @1.063s
`-sockets.target @1.063s
`-dbus.socket @1.063s
`-sysinit.target @914ms
`-systemd-update-utmp.service @885ms +17ms
`-auditd.service @653ms +228ms
`-systemd-tmpfiles-setup.service @626ms +22ms
`-rhel-import-state.service @552ms +40ms
`-local-fs.target @546ms
`-local-fs-pre.target @540ms
`-systemd-tmpfiles-setup-dev.service @449ms +43ms
`-kmod-static-nodes.service @198ms +199ms
`-systemd-journald.socket
`--.slice
Herhangi bir hedefin kritik zincirini görmek için:
# systemd-analyze critical-chain basic.target | grep target
basic.target @1.063s
`-sockets.target @1.063s
`-sysinit.target @914ms
`-local-fs.target @546ms
`-local-fs-pre.target @540ms