The [Controlling tracing](#doc-controlling-tracing) section explains
how to use the `lttng` tool to create and control tracing sessions.
The [Controlling tracing](#doc-controlling-tracing) section explains
how to use the `lttng` tool to create and control tracing sessions.
modules when needed (by launching `root`'s session daemon), it won't
load your custom `lttng-probe-hello` module by default. You need to
manually start an LTTng session daemon as `root` and use the
modules when needed (by launching `root`'s session daemon), it won't
load your custom `lttng-probe-hello` module by default. You need to
manually start an LTTng session daemon as `root` and use the