* Holger brunck ([email protected]) wrote: > Hi, > > On 06/10/2010 01:50 PM, MEKEZE KWATCHO, PATRICK (PATRICK) wrote: > > > > Yes, I see well the kernel event and the testprogramm process when I > > analyze the trace1 get with $ lttctl -C -w /tmp/trace1 trace1 > > > > I also think that is it possible to start a userspace trace without using > > the usttrace tool. > > When I run $usttrace ./testprogramm and $ lttctl -C -w /tmp/trace1 trace1, > > I saw on the lttv-gui all the kernel event, but i didn't see my userspace > > event. > > Among the process, both usttrace and testprogramm are present. > > > > hm, is the ltt_userspace_event kernel module loaded?
ltt_userspace_event is not needed for ust. It's only there to enable the debugfs "write_event" file, where a userspace application can write a string, which generated a userspace.event event. This is a "poor man's" userspace tracer that saves the trace data within the kernel stream in the "userspace" channel. Thanks, Mathieu > > Regards > Holger > > _______________________________________________ > ltt-dev mailing list > [email protected] > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev > -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com _______________________________________________ ltt-dev mailing list [email protected] http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
