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