trace-cmd
Utility to interact with the Ftrace Linux kernel internal tracer. This utility only runs as root. More information: https://manned.org/trace-cmd.
- Display the status of tracing system:
trace-cmd stat
- List available tracers:
trace-cmd list -t
- Start tracing with a specific plugin:
trace-cmd start -p {{timerlat|osnoise|hwlat|blk|mmiotrace|function_graph|wakeup_dl|wakeup_rt|wakeup|function|nop}}
- View the trace output:
trace-cmd show
- Stop the tracing but retain the buffers:
trace-cmd stop
- Clear the trace buffers:
trace-cmd clear
- Clear the trace buffers and stop tracing:
trace-cmd reset
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