* McDermott, Andrew ([email protected]) wrote: > > Is it possible to see when tracing has actually started (i.e., when > `lttng start' is invoked)? > > I can observe that the tracepoint is enabled/disabled by looking at the > 'state' field in a 'struct tracepoint'. Is there an equivalent variable > to monitor for `lttng start|stop'? I was trying to dump some additional > process state (via calls to tracepoint) whenever an external > start/stop/start/stop/start sequence occurs.
statedump for UST. This is a feature we don't have at this point. It would need to be designed within UST. I don't this a simple "hack" would do. > > Also, when I run 'lttng enable-event -u -a' I see that the 'state' value > changes from '0' to '1', but if I run 'lttng disable-event -u -a' it > stays at '1'. Is this expected? If I subsequently run 'lttng destroy' > then it does go to '0'. Shouldn't the disable set it to '0' too? I think it's been fixed, but if you still experience this issue, please file a bug report on bugs.lttng.org. Thanks, Mathieu > > -- > andy > _______________________________________________ > lttng-dev mailing list > [email protected] > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
