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.\"     Title: trace-cmd-stop
.\"    Author: [see the "AUTHOR" section]
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.\"      Date: 09/11/2020
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.\"    Source: \ \&
.\"  Language: English
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.TH "TRACE\-CMD\-STOP" "1" "09/11/2020" "\ \&" "\ \&"
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.SH "NAME"
trace-cmd-stop \- stop the Ftrace Linux kernel tracer from writing to the ring buffer\&.
.SH "SYNOPSIS"
.sp
\fBtrace\-cmd stop\fR [\fIOPTIONS\fR]
.SH "DESCRIPTION"
.sp
The trace\-cmd(1) stop is a complement to \fItrace\-cmd\-start(1)\fR\&. 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\&.
.sp
After stopping the trace, the \fItrace\-cmd\-extract(1)\fR may strip out the data from the ring buffer and create a trace\&.dat file\&. The Ftrace pseudo file system may also be examined\&.
.sp
To disable the tracing completely to remove the overhead it causes, use \fItrace\-cmd\-reset(1)\fR\&. But after a reset is performed, the data that has been recorded is lost\&.
.SH "OPTIONS"
.PP
\fB\-B\fR \fIbuffer\-name\fR
.RS 4
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
\fB\-t\fR
is given\&.
.RE
.PP
\fB\-a\fR
.RS 4
Stop the trace for all existing buffer instances\&. When this option is used, the top level instance will not be stopped unless
\fB\-t\fR
is given\&.
.RE
.PP
\fB\-t\fR
.RS 4
Stops the top level instance buffer\&. Without the
\fB\-B\fR
or
\fB\-a\fR
option this is the same as the default\&. But if
\fB\-B\fR
or
\fB\-a\fR
is used, this is required if the top level instance buffer should also be stopped\&.
.RE
.SH "SEE ALSO"
.sp
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)
.SH "AUTHOR"
.sp
Written by Steven Rostedt, <\m[blue]\fBrostedt@goodmis\&.org\fR\m[]\&\s-2\u[1]\d\s+2>
.SH "RESOURCES"
.sp
git://git\&.kernel\&.org/pub/scm/linux/kernel/git/rostedt/trace\-cmd\&.git
.SH "COPYING"
.sp
Copyright (C) 2010 Red Hat, Inc\&. Free use of this software is granted under the terms of the GNU Public License (GPL)\&.
.SH "NOTES"
.IP " 1." 4
rostedt@goodmis.org
.RS 4
\%mailto:rostedt@goodmis.org
.RE