| 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> |
| |
| 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). |
| |
