trace-cmd-stat - show the status of the tracing (ftrace) system
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Copyright (C) 2014 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public
License (GPL).
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.
Eventfilters: Shows any filters that are set for any events
Functionfilters: Shows any filters for the function tracers
Graphfunctions: 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.
Traceclock: If the tracing clock is anything other than the default "local" it will be displayed.
TraceCPUmask: If not all available CPUs are in the tracing CPU mask, then the tracing CPU mask will be
displayed.
Tracemaxlatency: 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.
Errorlog: Dump the content of ftrace error_log file.
Name
trace-cmd-stat - show the status of the tracing (ftrace) system
Notes
1. rostedt@goodmis.orgmailto:rostedt@goodmis.org
libtracefs 04/08/2024 TRACE-CMD-STAT(1)
Options
-Bbuffer-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.
Resources
https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/
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)
Synopsis
trace-cmdstat [OPTIONS]
