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trace-cmd-stop(1)

NAME

   trace-cmd-stop - stop the Ftrace Linux kernel tracer from writing to
   the ring buffer.

SYNOPSIS

   trace-cmd stop [OPTIONS]

DESCRIPTION

   The trace-cmd(1) stop is a complement to trace-cmd-start(1). This will
   disable Ftrace from writing to the ring buffer. This does not stop the
   overhead that the tracing may incur. Only the updating of the ring
   buffer is disabled, the Ftrace tracing may still be inducing overhead.

   After stopping the trace, the trace-cmd-extract(1) may strip out the
   data from the ring buffer and create a trace.dat file. The Ftrace
   pseudo file system may also be examined.

   To disable the tracing completely to remove the overhead it causes, use
   trace-cmd-reset(1). But after a reset is performed, the data that has
   been recorded is lost.

OPTIONS

   -B buffer-name
       If the kernel supports multiple buffers, this will stop the trace
       for only the given buffer. It does not affect any other buffer.
       This may be used multiple times to specify different buffers. When
       this option is used, the top level instance will not be stopped
       unless -t is given.

   -a
       Stop the trace for all existing buffer instances. When this option
       is used, the top level instance will not be stopped unless -t is
       given.

   -t
       Stops the top level instance buffer. Without the -B or -a option
       this is the same as the default. But if -B or -a is used, this is
       required if the top level instance buffer should also be stopped.

SEE ALSO

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

AUTHOR

   Written by Steven Rostedt, <[email protected][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. [email protected]
       mailto:[email protected]

                              07/17/2016                 TRACE-CMD-STOP(1)



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