trace-cmd-stream(1) — Linux manual page

TRACE-CMD-STREAM(1)         libtracefs Manual         TRACE-CMD-STREAM(1)

NAME         top

       trace-cmd-stream - stream a trace to stdout as it is happening

SYNOPSIS         top

       trace-cmd stream [OPTIONS] [command]

DESCRIPTION         top

       The trace-cmd(1) stream will start tracing just like
       trace-cmd-record(1), except it will not record to a file and
       instead it will read the binary buffer as it is happening, convert
       it to a human readable format and write it to stdout.

       This is basically the same as trace-cmd-start(1) and then doing a
       trace-cmd-show(1) with the -p option. trace-cmd-stream is not as
       efficient as reading from the pipe file as most of the stream work
       is done in userspace. This is useful if it is needed to do the
       work mostly in userspace instead of the kernel, and stream also
       helps to debug trace-cmd-profile(1) which uses the stream code to
       perform the live data analysis for the profile.

OPTIONS         top

           These are the same as trace-cmd-record(1), except that it does not take
           the *-o* option.

SEE ALSO         top

       trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1),
       trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-reset(1),
       trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1)

AUTHOR         top

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

RESOURCES         top

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

COPYING         top

       Copyright (C) 2014 Red Hat, Inc. Free use of this software is
       granted under the terms of the GNU Public License (GPL).

NOTES         top

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

COLOPHON         top

       This page is part of the trace-cmd (a front-end for Ftrace)
       project.  Information about the project can be found at 
       ⟨https://www.trace-cmd.org/⟩.  If you have a bug report for this
       manual page, see ⟨https://www.trace-cmd.org/⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git⟩ on
       2025-08-11.  (At that time, the date of the most recent commit
       that was found in the repository was 2025-08-01.)  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page,
       or you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a
       mail to man-pages@man7.org

libtracefs                      09/24/2023            TRACE-CMD-STREAM(1)

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