1TRACE-CMD-STOP(1)                                            TRACE-CMD-STOP(1)
2
3
4

NAME

6       trace-cmd-stop - stop the Ftrace Linux kernel tracer from writing to
7       the ring buffer.
8

SYNOPSIS

10       trace-cmd stop [OPTIONS]
11

DESCRIPTION

13       The trace-cmd(1) stop is a complement to trace-cmd-start(1). This will
14       disable Ftrace from writing to the ring buffer. This does not stop the
15       overhead that the tracing may incur. Only the updating of the ring
16       buffer is disabled, the Ftrace tracing may still be inducing overhead.
17
18       After stopping the trace, the trace-cmd-extract(1) may strip out the
19       data from the ring buffer and create a trace.dat file. The Ftrace
20       pseudo file system may also be examined.
21
22       To disable the tracing completely to remove the overhead it causes, use
23       trace-cmd-reset(1). But after a reset is performed, the data that has
24       been recorded is lost.
25

OPTIONS

27       -B buffer-name
28           If the kernel supports multiple buffers, this will stop the trace
29           for only the given buffer. It does not affect any other buffer.
30           This may be used multiple times to specify different buffers. When
31           this option is used, the top level instance will not be stopped
32           unless -t is given.
33
34       -a
35           Stop the trace for all existing buffer instances. When this option
36           is used, the top level instance will not be stopped unless -t is
37           given.
38
39       -t
40           Stops the top level instance buffer. Without the -B or -a option
41           this is the same as the default. But if -B or -a is used, this is
42           required if the top level instance buffer should also be stopped.
43

SEE ALSO

45       trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1),
46       trace-cmd-start(1), trace-cmd-extract(1), trace-cmd-reset(1),
47       trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1)
48

AUTHOR

50       Written by Steven Rostedt, <rostedt@goodmis.org[1]>
51

RESOURCES

53       https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/
54

COPYING

56       Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted
57       under the terms of the GNU Public License (GPL).
58

NOTES

60        1. rostedt@goodmis.org
61           mailto:rostedt@goodmis.org
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65                                  03/29/2021                 TRACE-CMD-STOP(1)
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