Running this gives me:
<quote>
UST events:
-------------
None
</quote>
Before or after running qemu. What is the mechanism lttng expects to
find out all these events?
Either the user should belong the group "tracing", or launch the
lttng-sessiond daemon (lttng-sessiond -d).
+
+Create tracing session:
+
+ lttng create mysession
+
+Enable events:
+
+ lttng enable-event qemu:g_malloc -u
+
+Where the events can either be a comma-separated list of events, or "-a" to
+enable all tracepoint events. Start and stop tracing as needed:
+
+ lttng start
+ lttng stop
+
+View the trace:
+
+ lttng view
+
+Destroy tracing session:
+
+ lttng destroy
+
+Babeltrace can be used at any later time to view the trace:
+
+ babeltrace $HOME/lttng-traces/mysession-<date>-<time>
+
The rest of this looks OK and worked on my system.
=== SystemTap ===
The "dtrace" backend uses DTrace sdt probes but has only been tested with
Thanks!
Mohamad
