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 04/08/2024 TRACE-CMD-STAT(1)
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