The babeltrace2-log tool reads the lines of a Linux kernel ring
buffer, as printed by the dmesg(1) tool, from the standard input
stream and converts them to a CTF (see <http://diamon.org/ctf/>)
trace written to the OUTPUT-PATH directory.
$ dmesg | babeltrace2-log --with-timestamps my-trace
The events of the generated CTF trace are named string and
contain a single payload string field named str which contains
the corresponding ring buffer line.
By default, babeltrace2-log does not try to extract the
timestamps of the kernel ring buffer lines to use them as the
created events’s timestamps. A typical dmesg(1) line looks like
[87166.510937] PM: Finishing wakeup.
In the last example, the [87166.510937] part is a timestamp which
could be extracted. You can make babeltrace2-log extract
timestamps from lines with the --with-timestamps option.
See the environment variables of
Common functions’s log level. The available values are the
same as for the --log-level option of babeltrace2(1).
Compatibility functions’s log level. The available values are
the same as for the --log-level option of babeltrace2(1).
Force the terminal color support. The available values are:
Only emit terminal color codes when the standard output
and error streams are connected to a color-capable
Never emit terminal color codes.
Always emit terminal color codes.
Set to 1 to disable the loading of any Babeltrace Python
Babeltrace library’s global log level. The available values
are the same as for the --log-level option of babeltrace2(1)BABELTRACE_NO_DLCLOSE
Set to 1 to make the Babeltrace library leave any dynamically
loaded modules (plugins and Python plugin provider) open at
exit. This can be useful for debugging purposes.
Colon-separated list of directories, in order, in which
dynamic plugins can be found before other directories are
This page is part of the babeltrace (trace read and write
libraries and a trace converter) project. Information about the
project can be found at ⟨http://www.efficios.com/babeltrace⟩. If
you have a bug report for this manual page, send it to
firstname.lastname@example.org. This page was obtained from the
project's upstream Git repository
⟨git://git.efficios.com/babeltrace.git⟩ on 2021-08-27. (At that
time, the date of the most recent commit that was found in the
repository was 2021-08-20.) 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
Babeltrace 2.0.0-pre6 5 October 2017 BABELTRACE2-LOG(1)