3 :revdate: 29 April 2021
8 lttng-start - Start an LTTng tracing session
14 *lttng* ['linkgenoptions:(GENERAL OPTIONS)'] *start* ['SESSION']
19 The `lttng start` command starts a tracing session, that is, it
20 activates the LTTng tracers for:
22 With the 'SESSION' argument::
23 The tracing session named 'SESSION'.
25 Without the 'SESSION' argument::
26 The current tracing session (see man:lttng-concepts(7) to learn more
27 about the current tracing session).
29 See man:lttng-concepts(7) to learn more about tracing sessions.
31 The selected tracing session must be inactive (stopped). A tracing
32 session is inactive on creation (see man:lttng-create(1)).
34 A `start-session` trigger action can also start a tracing session
35 (see man:lttng-add-trigger(1)).
37 Stop an active tracing session with the man:lttng-stop(1) command.
40 include::common-cmd-options-head.txt[]
43 include::common-cmd-help-options.txt[]
46 include::common-cmd-footer.txt[]
52 man:lttng-add-trigger(1),
54 man:lttng-enable-event(1),