DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/linux/trace-cmd.md

trace-cmd

Utility to interact with the Ftrace Linux kernel internal tracer. See also: trace-cmd list, trace-cmd record, trace-cmd report. More information: https://manned.org/trace-cmd.

• Display the status of tracing system:

sudo trace-cmd stat

• List available tracers:

sudo trace-cmd list -t

• Start tracing with a specific plugin:

sudo trace-cmd start -p {{function|function_graph|preemptirqsoff|irqsoff|preemptoff|wakeup|...}}

• View the trace output:

sudo trace-cmd show

• Stop the tracing but retain the buffers:

sudo trace-cmd stop

• Clear the trace buffers:

sudo trace-cmd clear

• Record a trace:

sudo trace-cmd record

• Display the recorded trace:

sudo trace-cmd report