I wonder if I might ask for some more guidance please?

I now have lttng and Trace Compass running on Ubuntu.  I want to inspect the 
scheduling of threads in my user-space application.  So far, I have 
successfully captured a trace with the sched_switch event enabled:

$ sudo lttng enable-event -k sched_switch

This indeed shows my app's threads.  However, it also shows all the other 
threads in the system and does not show clearly (to my understanding) when the 
threads are scheduled / blocked.

I would like some guidance on how to improve this tracing.

1) Would it be better if I defined my own “tracepoint providers” and then set 
trace events for when a thread wakes / blocks?

2) How could I show which core a thread is running on?

Best regards

lttng-dev mailing list

Reply via email to