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BABELTRACE2-SINK.(7) Babeltrace 2 manual BABELTRACE2-SINK.(7)
babeltrace2-sink.utils.counter - Babeltrace 2: Message counter
sink component class
A Babeltrace 2 sink.utils.counter component prints to the standard
output the number of messages it consumes with a count for each
type.
+--------------------+
| sink.utils.counter |
| +--> Statistics to the
Messages -->@ in | standard output
+--------------------+
See babeltrace2-intro(7) to learn more about the Babeltrace 2
project and its core concepts.
The output of the component looks like this:
3842964 Event messages
4 Stream beginning messages
1 Stream end messages
18 Packet beginning messages
14 Packet end messages
189 Discarded event messages
0 Discarded packet messages
3 Message iterator inactivity messages
3843000 messages (TOTAL)
By default, a sink.utils.counter component prints a new block of
statistics every 1000 consumed messages, whatever their types. You
can use the step parameter to override this default period.
The component always prints a block of statistics when there’s no
more messages to consume from its upstream message iterator and
the last block was different.
By default, a sink.utils.counter component prints the count of
messages for each type, even if this count is 0. You can make it
hide the zero counts with the hide-zero parameter.
hide-zero=VAL [optional boolean]
If VAL is true, then don’t print the statistics lines where
the count is zero.
Default: false.
step=STEP [optional unsigned integer]
Print a new block of statistics every STEP consumed messages
instead of 1000.
If STEP is 0, then the component only prints statistics when
there’s no more messages to consume.
+--------------------+
| sink.utils.counter |
| |
@ in |
+--------------------+
Input
in
Single input port.
If you encounter any issue or usability problem, please report it
on the Babeltrace bug tracker (see
<https://bugs.lttng.org/projects/babeltrace>).
The Babeltrace project shares some communication channels with the
LTTng project (see <https://lttng.org/>).
• Babeltrace website (see <https://babeltrace.org/>)
• Mailing list (see <https://lists.lttng.org>) for support and
development: lttng-dev@lists.lttng.org
• IRC channel (see <irc://irc.oftc.net/lttng>): #lttng on
irc.oftc.net
• Bug tracker (see <https://bugs.lttng.org/projects/babeltrace>)
• Git repository (see
<https://git.efficios.com/?p=babeltrace.git>)
• GitHub project (see <https://github.com/efficios/babeltrace>)
• Continuous integration (see
<https://ci.lttng.org/view/Babeltrace/>)
• Code review (see
<https://review.lttng.org/q/project:babeltrace>)
The Babeltrace 2 project is the result of hard work by many
regular developers and occasional contributors.
The current project maintainer is Jérémie Galarneau
<mailto:jeremie.galarneau@efficios.com>.
This component class is part of the Babeltrace 2 project.
Babeltrace is distributed under the MIT license (see
<https://opensource.org/licenses/MIT>).
babeltrace2-intro(7), babeltrace2-plugin-utils(7)
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
lttng-dev@lists.lttng.org. This page was obtained from the
project's upstream Git repository
⟨git://git.efficios.com/babeltrace.git⟩ on 2025-08-11. (At that
time, the date of the most recent commit that was found in the
repository was 2025-06-25.) 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
Babeltrace 2.2.0rc1 1 September 2023 BABELTRACE2-SINK.(7)
Pages that refer to this page: babeltrace2(1), babeltrace2-plugin-utils(7)