trace-cmd-stop - Man Page

trace-cmd stop [Options]

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​.

-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​.

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)

Written by Steven Rostedt, <rostedt@goodmis​.org​^[1]>

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

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

1.

rostedt@goodmis.org
mailto:rostedt@goodmis.org

trace-cmd(1), trace-cmd-agent(1), trace-cmd-attach(1), trace-cmd-check-events(1), trace-cmd.dat.v6(5), trace-cmd.dat.v7(5), trace-cmd-extract(1), trace-cmd-hist(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd-mem(1), trace-cmd-options(1), trace-cmd-profile(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-reset(1), trace-cmd-restore(1), trace-cmd-set(1), trace-cmd-split(1), trace-cmd-start(1), trace-cmd-stat(1), trace-cmd-stream(1).