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39 lines
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39 lines
1.0 KiB
Plaintext
---
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syntax: markdown
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tags: [tldr, linux]
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source: https://github.com/tldr-pages/tldr.git
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---
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# systemd-analyze
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> Analyze and debug system manager.
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> Show timing details about the boot process of units (services, mount points, devices, sockets).
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> More information: <https://www.freedesktop.org/software/systemd/man/latest/systemd-analyze.html>.
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- Print the last system startup time:
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`systemd-analyze`
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- List all running units, ordered by the time they took to initialize:
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`systemd-analyze blame`
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- Print a tree of the time-critical chain of bootup units:
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`systemd-analyze critical-chain`
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- Create an SVG file showing when each system service started, highlighting the time that they spent on initialization:
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`systemd-analyze plot > {{path/to/file.svg}}`
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- Plot a dependency graph and convert it to an SVG file:
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`systemd-analyze dot | dot -T {{svg}} > {{path/to/file.svg}}`
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- Show security scores of running units:
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`systemd-analyze security`
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- View all udev rules together without showing comments:
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`systemd-analyze cat-config udev/rules.d --tldr`
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