[ltt-dev] ust 0.3 problem

Mathieu Desnoyers compudj at krystal.dyndns.org
Thu Mar 4 09:35:05 EST 2010

* thirumalai.p (thirumalai.p at datapatterns.co.in) wrote:
> Hi,
> At the end it worked for me. libraries installed and lttv installed
> successfully. I started my testing with tests/basic directory by running
> usttrace ./basic. After some time it gave me trace was successful and trace
> was stored on /root/ folder then i try to open it using Lttv-gui by using
> the command lttv-gui -t <pathtomytrace>. Trace is opening successfully but
> the graphical view which i used to see on kernel tracer[different colors
> for different event like for waiting cpu was shown by dark magenta] is not
> shown on the trace. But the time line is moving in the output when i
> traversing the trace output. 
> I just want to know whether this things only come for kernel tracers alone
> or will it come to user tracer also?

As you found out, you have to also take a kernel trace at the same time
as your UST trace to have the kernel-level information to populate some
of the views. You can open both simultaneously in the same LTTV

I'm glad it works out for you. Pierre-Marc and I will investigate what
happened on your Redhat system that required to specify the i686



> Thank you,
> Thirumalai
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Mathieu Desnoyers
Operating System Efficiency Consultant
EfficiOS Inc.

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