Thank you, things are looking much better now. David
> -----Original Message----- > From: Jonathan Rajotte Julien [mailto:[email protected]] > Sent: 15 September 2016 16:50 > To: David Aldrich <[email protected]>; lttng- > [email protected] > Subject: Re: [lttng-dev] Beginner question: how to inspect scheduling of > multi-threaded user application? > > 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 > > > > Click > https://www.mailcontrol.com/sr/+PZCEcpjy5nGX2PQPOmvUsaHTTHE2WHLlI > gN8TKUyPvY+09UnGjaICLUQ+RbaoZl0ti1ys3tAhuJRcENOpaP7A== to report > this email as spam. _______________________________________________ lttng-dev mailing list [email protected] https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
