Boot timeline SVG systemd
Render full parallel boot timeline as an SVG to spot serialized stalls visually
systemd-analyze plot > boot.svg
more systemd
all 26 commands →
Drop-in override
systemctl edit <unit> # writes /etc/systemd/system/<unit>.d/override.conf
Reload unit files
systemctl daemon-reload
Mask a unit
systemctl mask <unit> && systemctl unmask <unit>
Recursive dependency tree
systemctl list-dependencies <unit> --all
Live memory of a unit
systemctl show -p MainPID,MemoryCurrent,TasksCurrent <unit>