====== Systemd ======

===== Suspenad and hibernate =====
<code bash>
systemctl suspend
systemctl hibernate

pmi action suspend
pmi action hibernate
</code>

===== Boot time analyze =====

==== systemd-analyze ====
<code bash>
systemd-analyze
systemd-analyze blame
systemd-analyze plot > /tmp/plot.svg
</code>

==== systemd-bootchart ====
<code bash>
systemd-bootchart
</code>

[[https://wiki.gentoo.org/wiki/Systemd#systemd-bootchart]]

[[https://wiki.archlinux.org/index.php/Improving_performance/Boot_process#Analyzing_the_boot_process]]

===== Process =====

==== Process info ====
<code bash>
systemd-cgls
pstree
</code>

==== Kill process ====
<code bash>
# SIGTERM
systemctl kill service-name.service

# SIGKILL
systemctl kill -s SIGKILL service-name.service

# HUP
systemctl kill -s HUP --kill-who=main service-name.service
</code>