trace-cmd-stat(1) — Linux manual page

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

NAME         top

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

SYNOPSIS         top

       trace-cmd stat [OPTIONS]

DESCRIPTION         top

       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         top

       -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         top

       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         top

       Written by Steven Rostedt, <[email protected][1]>

RESOURCES         top

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

COPYING         top

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

NOTES         top

        1. [email protected]
           mailto:[email protected]

COLOPHON         top

       This page is part of the trace-cmd (a front-end for Ftrace)
       project.  Information about the project can be found at 
       ⟨https://www.trace-cmd.org/⟩.  If you have a bug report for this
       manual page, see ⟨https://www.trace-cmd.org/⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git⟩ on
       2024-06-14.  (At that time, the date of the most recent commit
       that was found in the repository was 2024-02-22.)  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to [email protected]

libtracefs                     09/24/2023              TRACE-CMD-STAT(1)

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