[lttng-dev] Tracing custom text file using TMF or LTTV question

[Mathieu Desnoyers]

Hi, 

I'm CCing Alexandre Montplaisir, who will be able to either answer those 
questions, or relay them to the appropriate TMF developers. 

Thanks! 

Mathieu 

----- Original Message -----

> From: "Stavros Giannakopoulos" <stavros.giannakopoulos at ericsson.com>
> To: lttng-dev at lists.lttng.org
> Sent: Thursday, June 12, 2014 7:56:23 AM
> Subject: Tracing custom text file using TMF or LTTV question

> Greetings,
> i am running a project on behalf or Ericsson Sweden regarding tracing on a
> custom multicore architecture.

> I came across your tools through a colleague and It seems that they might be
> appropriate for our work, especially TMF since we already utilize
> eclipse quite heavily.

> I have some technical questions though, and I would like some feedback so I
> know whether our specifications can be covered by that or some similar tool.

> Please forward this email to the appropriate department if possible.

> The specifications we have are:
> 1. The trace we are interested in is a process-centric view of the events (or
> actors in our system) along with their respective threads, that will run on
> specific cores.
> 2. We don’t need to capture the traces, that has been already done, only to
> parse the generated file and produce a graphical view that includes the
> processes, threads, cores and the messages that trigger new processes.
> is that possible?
> 3. We have the trace files in .lat format already which are generated by
> using the Flexus tools. What I want to know if there is a conversion tool
> available or we need to develop a script to do the conversion to a suitable
> format (CTF). And if the TMF or LTTV can produce this result from a custom
> trace file and not a kernel trace.

> Observe on Fig 1 a simplified view of our needs. In practice there will be a
> few thousands processes in tens of cores and the start/end times and the
> messages are essential.

> Fig 1: Example of result wanted.

> Please reply on my email: stavros.giannakopoulos at ericsson.com
> or contact Johan Mellgren at johan.q.mellgren at ericsson.com

> Regards,
> Stavros Giannakopoulos

-- 
Mathieu Desnoyers 
EfficiOS Inc. 
http://www.efficios.com 
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