TRACE-CMD-STAT(1)              libtracefs Manual             TRACE-CMD-STAT(1)

NAME
       trace-cmd-stat - show the status of the tracing (ftrace) system

SYNOPSIS
       trace-cmd stat [OPTIONS]

DESCRIPTION
       The trace-cmd(1) stat displays the various status of the tracing
       (ftrace) system. The status that it shows is:

       Instances: List all configured ftrace instances.

       Tracer: if one of the tracers (like function_graph) is active.
       Otherwise nothing is displayed.

       Events: Lists the events that are enable.

       Event filters: Shows any filters that are set for any events

       Function filters: Shows any filters for the function tracers

       Graph functions: Shows any functions that the function graph tracer
       should graph

       Buffers: Shows the trace buffer size if they have been expanded. By
       default, tracing buffers are in a compressed format until they are
       used. If they are compressed, the buffer display will not be shown.

       Trace clock: If the tracing clock is anything other than the default
       "local" it will be displayed.

       Trace CPU mask: If not all available CPUs are in the tracing CPU mask,
       then the tracing CPU mask will be displayed.

       Trace max latency: Shows the value of the trace max latency if it is
       other than zero.

       Kprobes: Shows any kprobes that are defined for tracing.

       Uprobes: Shows any uprobes that are defined for tracing.

       Error log: Dump the content of ftrace error_log file.

OPTIONS
       -B buffer-name
           Display the status of a given buffer instance. May be specified
           more than once to display the status of multiple instances.

       -t
           If -B is also specified, show the status of the top level tracing
           directory as well as the instance(s).

       -o
           Display the all the options along with their values. If they start
           with "no", then the option is disabled.

SEE ALSO
       trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1),
       trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1),
       trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-listen(1)

AUTHOR
       Written by Steven Rostedt, <rostedt@goodmis.org[1]>

RESOURCES
       https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/

COPYING
       Copyright (C) 2014 Red Hat, Inc. Free use of this software is granted
       under the terms of the GNU Public License (GPL).

NOTES
        1. rostedt@goodmis.org
           mailto:rostedt@goodmis.org

libtracefs                        04/07/2024                 TRACE-CMD-STAT(1)