Hi,
On 2016-09-15 11:41 AM, David Aldrich wrote:
Hi Jonathan
Thanks, I had not logged out/in after joining the tracing group.
I now see:
$ lttng create demo_session
Session demo_session created.
$ sudo lttng enable-event -k sched_switch -s demo_session
Error: Event sched_switch: Kernel tracer not available (channel channel0,
session demo_session)
Warning: Some command(s) went wrong
What do I need to install?
Did you have a look at http://lttng.org/download/#ubuntu ?
I recommend the use of the ppa if possible. For kernel tracing make sure
to install the lttng-modules-dkms.
Make sure there is not error during the installation. It might happen
but should not :) .
If it's not done already make sure to drop by
http://lttng.org/docs/#doc-getting-started for more informations.
Cheers
Best regards
David
--
Jonathan R. Julien
Efficios
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