TRACE-CMD-STOP(1) libtracefs Manual 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, <rostedt@goodmis.org[1]>
RESOURCES
https://git.kernel.org/pub/scm/utils/trace-cmd/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
libtracefs 04/08/2024 TRACE-CMD-STOP(1)
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