trace-cmd-list(1) [centos man page]

TRACE-CMD-LIST(1)														 TRACE-CMD-LIST(1)

NAME

       trace-cmd-list - list available plugins, events or options for Ftrace.

SYNOPSIS

       trace-cmd list [OPTIONS]

DESCRIPTION

       The trace-cmd(1) list displays the available plugins, events or Ftrace options that are configured on the current machine. If no option is
       given, then it lists all plugins, events and Ftrace options to standard output.

OPTIONS

       -e
	   This option will list the available events that are enabled on the local system.

       -t
	   This option will list the available tracers that are enabled on the local system.

       -p
	   Same as -t and only for legacy purposes.

       -o
	   This option will list the available Ftrace options that are configured on the local system.

       -f [regex]
	   This option will list the available filter functions. These are the list of functions on the system that you can trace, or filter on.
	   It takes an optional argument that uses regcomp(3) expressions to seach.

	       trace-cmd list -f '^sched.*'

       -P
	   List the plugin files that get loaded on trace-cmd report.

       -O
	   List plugin options that can be used by trace-cmd report -O option.

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

       git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git

COPYING

       Copyright (C) 2010 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

								    06/11/2014							 TRACE-CMD-LIST(1)

TRACE-CMD-EXTRACT(1)													      TRACE-CMD-EXTRACT(1)

NAME

       trace-cmd-extract - extract out the data from the Ftrace Linux tracer.

SYNOPSIS

       trace-cmd extract [OPTIONS]

DESCRIPTION

       The trace-cmd(1) extract is usually used after trace-cmd-start(1) and trace-cmd-stop(1). It can be used after the Ftrace tracer has been
       started manually through the Ftrace pseudo file system.

       The extract command creates a trace.dat file that can be used by trace-cmd-report(1) to read from. It reads the kernel internal ring buffer
       to produce the trace.dat file.

OPTIONS

       -p plugin
	   Although extract does not start any traces, some of the plugins require just reading the output in ASCII format. These are the latency
	   tracers, since the latency tracers have a separate internal buffer. The plugin option is therefore only necessary for the wakeup,
	   wakeup-rt, irqsoff, preemptoff and preemptirqsoff plugins.

	       With out this option, the extract command will extract from the internal
	       Ftrace buffers.

       -O option
	   If a latency tracer is being extracted, and the -p option is used, then there are some Ftrace options that can change the format. This
	   will update those options before extracting. To see the list of options see trace-cmd-list. To enable an option, write its name, to
	   disable the option append the characters no to it. For example: noprint-parent will disable the print-parent option that prints the
	   parent function in printing a function event.

       -o outputfile
	   By default, the extract command will create a trace.dat file. This option will change where the file is written to.

SEE ALSO

       trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-reset(1), trace-cmd-split(1),
       trace-cmd-list(1), trace-cmd-listen(1)

AUTHOR

       Written by Steven Rostedt, <rostedt@goodmis.org[1]>

RESOURCES

       git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git

COPYING

       Copyright (C) 2010 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

								    06/11/2014						      TRACE-CMD-EXTRACT(1)