NAME¶

babeltrace2-sink.utils.counter - Babeltrace 2's message counter sink component class

DESCRIPTION¶

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 component’s output 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.

INITIALIZATION PARAMETERS¶

hide-zero=VAL [optional boolean]

step=STEP [optional unsigned integer]

PORTS¶

+--------------------+
| sink.utils.counter |
|                    |
@ in                 |
+--------------------+

BUGS¶

If you encounter any issue or usability problem, please report it on the Babeltrace bug tracker (see <https://bugs.lttng.org/projects/babeltrace>).

RESOURCES¶

The Babeltrace project shares some communication channels with the LTTng project (see <https://lttng.org/>).

AUTHORS¶

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>.

COPYRIGHT¶

This component class is part of the Babeltrace 2 project.

Babeltrace is distributed under the MIT license (see <https://opensource.org/licenses/MIT>).

SEE ALSO¶

babeltrace2-intro(7), babeltrace2-plugin-utils(7)