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LEARN ABOUT CENTOS

trace-cmd-reset

TRACE-CMD-RESET(1)														TRACE-CMD-RESET(1)

NAME

       trace-cmd-reset - turn off all Ftrace tracing to bring back full performance

SYNOPSIS

       trace-cmd reset [OPTIONS]

DESCRIPTION

       The trace-cmd(1) reset command turns off all tracing of Ftrace. This will bring back the performance of the system before tracing was
       enabled. This is necessary since trace-cmd-record(1), trace-cmd-stop(1) and trace-cmd-extract(1) do not disable the tracer, event after the
       data has been pulled from the buffers. The rational is that the user may want to manually enable the tracer with the Ftrace pseudo file
       system, or examine other parts of Ftrace to see what trace-cmd did. After the reset command happens, the data in the ring buffer, and the
       options that were used are all lost.

OPTIONS

       -b buffer_size
	   When the kernel boots, the Ftrace ring buffer is of a minimal size (3 pages per CPU). The first time the tracer is used, the ring
	   buffer size expands to what it was set for (default 1.4 Megs per CPU).

	       If no more tracing is to be done, this option allows you to shrink the
	       ring buffer down to free up available memory.

	       trace-cmd reset -b 1

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-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-RESET(1)