2022-03-21 09:44:10 +05:30
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# trace-cmd
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> Utility to interact with the Ftrace Linux kernel internal tracer.
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2025-07-20 02:59:38 +08:00
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> See also: `trace-cmd list`, `trace-cmd record`, `trace-cmd report`.
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2022-03-21 09:44:10 +05:30
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> More information: <https://manned.org/trace-cmd>.
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- Display the status of tracing system:
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2025-07-20 02:59:38 +08:00
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`sudo trace-cmd stat`
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2022-03-21 09:44:10 +05:30
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- List available tracers:
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2025-07-20 02:59:38 +08:00
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`sudo trace-cmd list -t`
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2022-03-21 09:44:10 +05:30
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- Start tracing with a specific plugin:
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2025-07-20 02:59:38 +08:00
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`sudo trace-cmd start -p {{function|function_graph|preemptirqsoff|irqsoff|preemptoff|wakeup|...}}`
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2022-03-21 09:44:10 +05:30
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- View the trace output:
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2025-07-20 02:59:38 +08:00
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`sudo trace-cmd show`
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2022-03-21 09:44:10 +05:30
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- Stop the tracing but retain the buffers:
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2025-07-20 02:59:38 +08:00
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`sudo trace-cmd stop`
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2022-03-21 09:44:10 +05:30
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- Clear the trace buffers:
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2025-07-20 02:59:38 +08:00
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`sudo trace-cmd clear`
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2022-03-21 09:44:10 +05:30
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2025-07-20 02:59:38 +08:00
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- Record a trace:
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2022-03-21 09:44:10 +05:30
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2025-07-20 02:59:38 +08:00
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`sudo trace-cmd record`
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- Display the recorded trace:
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`sudo trace-cmd report`
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