A Linux system administrator is investigating a slow boot process. The administrator needs to identify which systemd units are taking the most time to initialize during startup. Which command will display a list of all running units, sorted by the time they took to initialize?
systemd-analyze blame prints a list of all running units ordered by the time each one took to start, making it the right tool for diagnosing slow boots.
systemd-analyze critical-chain shows only the time-critical dependency chain, not a full, time-sorted list.
systemctl list-dependencies reveals the dependency tree of units but provides no timing data.
journalctl -b displays log entries from the current boot but does not summarize unit start times.
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