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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | AUTHOR | RESOURCES | COPYING | NOTES | COLOPHON |
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TRACE-CMD-STAT(1) libtracefs Manual TRACE-CMD-STAT(1)
trace-cmd-stat - show the status of the tracing (ftrace) system
trace-cmd stat [OPTIONS]
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.
-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.
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)
Written by Steven Rostedt, <rostedt@goodmis.org[1]>
https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/
Copyright (C) 2014 Red Hat, Inc. Free use of this software is
granted under the terms of the GNU Public License (GPL).
1. rostedt@goodmis.org
mailto:rostedt@goodmis.org
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
2025-08-11. (At that time, the date of the most recent commit
that was found in the repository was 2025-08-01.) 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 man-pages@man7.org
libtracefs 09/24/2023 TRACE-CMD-STAT(1)
Pages that refer to this page: trace-cmd(1)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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