systemd-analyze

Analyze system boot performance and service startup times.

What it does

systemd-analyze provides insight into system boot timing, service delays, and overall startup performance in systemd-based systems.

Quick Start

# Show total boot time
systemd-analyze

# Show time spent in kernel vs userspace
systemd-analyze time

Examples

# List slowest services
systemd-analyze blame

# Show dependency tree
systemd-analyze critical-chain

# Generate SVG boot chart
systemd-analyze plot > boot.svg

Notes

Only works on systemd-based systems
Helpful for diagnosing slow boot issues
Output can be piped to files for visualization