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cd ..
System

Systemd-analyze Boot Performance

Analyze system boot time and service startup performance.

2025-10-02
systemd, performance, linux

Show boot time

systemd-analyze

Show detailed boot time

systemd-analyze time

Blame slow services

systemd-analyze blame

Show critical chain

systemd-analyze critical-chain

Critical chain for specific service

systemd-analyze critical-chain nginx.service

Plot boot graph (SVG)

systemd-analyze plot > boot.svg

Show service dependencies

systemd-analyze dot nginx.service | dot -Tsvg > nginx-deps.svg

Verify system configuration

systemd-analyze verify

Verify specific service

systemd-analyze verify /etc/systemd/system/myapp.service

Show security score

systemd-analyze security

Security analysis for service

systemd-analyze security nginx.service

List unit files

systemd-analyze unit-files

Show calendar events

systemd-analyze calendar "Mon *-*-* 00:00:00"

Verify timer syntax

systemd-analyze calendar weekly

Show unit paths

systemd-analyze unit-paths

Dump all unit properties

systemd-analyze dump

Show condition test

systemd-analyze condition 'ConditionPathExists=/etc/nginx/nginx.conf'

Set boot target analysis

systemd-analyze set-log-level debug

Check boot loader entries

systemd-analyze --boot-loader-entries

Compare boot times

systemd-analyze plot --iterations=5 > boot-comparison.svg

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