Hi, You are probably missing a part of the event name.
Once your application is started, you can use "lttng list -u" to list the available events for UST tracing. It should look something like that (this is taken from the hello example in UST code tree). ust_tests_hello:tptest (loglevel: TRACE_DEBUG_LINE (13)) (type: tracepoint) $ lttng enable-event ust_tests_hello:tptest -u When creating a tracepoint event in your application, you have this: TRACEPOINT_EVENT(ust_tests_hello, tptest, ...) You have to use both part with ":" between which are the component name and name of the tracepoint. See lttng-ust(3) for an explanation. Thanks! David mohammad reza rejali: > Dear Sir/Madam > > I am new in this area, I downloaded the examples and run the sample file > but there is a problem. > I used this command lttng enable-event sample_component -u > But when i use this and lltng start and then stop when I use this > command lttng view, Nothing show me,the only thing it shows is the > directory that created for my session. > On the other hand, when I use lttng enable event -a -u and run my > code,when i use lttng view i could see the trace. > I really appreciate your help and thank you in advance. > > Best Regards, > Mohammad > > > This body part will be downloaded on demand. _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
