Section 1 · User commands
trace-cmd-stat.1
Package: trace-cmd
TRACE−CMD−STAT
NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
AUTHOR
RESOURCES
COPYING
NOTES
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
mailto:rostedt@goodmis.org