Le 2013-12-13 14:53, Michael Steppe a écrit : > Hello! > > I have a question regarding userspace tracing. I am working on a project > on which we have used LTTng in the past (prior to LTTng 2.0). In order > to see how our application was running in coordination with the kernel, > we created a .h file in which we would append strings to > "/mnt/debugfs/ltt/write_event" in order to see our application timing in > the LTTng viewer in Eclipse. > > Since then we have updated to LTTng 2.0.4. It would be very hard for us > to change to a different version at the current time. I have noticed > that /mnt/debugfs/ltt/write_event no longer exists in 2.0.4 and was > wondering (crossing my fingers) that this location has simply changed or > is there a new filesystem that you use?
This feature has not been included in lttng 2. I think that this feature is useful, and I tried last year to bring it back. It was close to be merged as a separate proc file, but someone pointed that it would be better to profile the file with debugfs. I haven't work on it since then. I may give it another spin later, but I can't right now. http://lists.lttng.org/pipermail/lttng-dev/2012-July/018210.html Cheers, Francis _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
