[lttng-dev] Getting started with lttng

Chaitannya Mahatme chaitannya at gmail.com
Fri Apr 25 15:38:20 EDT 2014

Hello Everyone,

I have recently  installed lttng on my machine .. (Ubuntu 12.04)
It's a fresh instalation on vmware. Every thing runs fine expect that
no trace information is captured. What can be the issue?

lttng enable-event sched_switch,sched_process_fork -k
lttng start
lttng stop
babeltrace lttng-traces/mysession-20140425-235804/

There is no output here.

du -h lttng-traces/mysession-20140425-235804/

8.0K	lttng-traces/mysession-20140425-235804/kernel/index
20K	lttng-traces/mysession-20140425-235804/kernel
24K	lttng-traces/mysession-20140425-235804/

o/p of uname -a
Linux ubuntu 3.2.0-23-generic-pae #36-Ubuntu SMP Tue Apr 10 22:19:09
UTC 2012 i686 athlon i386 GNU/Linux

What can be the issue ?
Cheers !!!

follow me on twitter http://twitter.com/chaitannya
I believe there's a hero in all of us who keeps us honest, gives us
strength, makes us noble, and finally allows us to die with pride,
even though sometimes we have to be steady, and give up the thing we
want the most... even our dreams.
- Spider Man 2

More information about the lttng-dev mailing list