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. 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? -- andy _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
