[lttng-dev] Add pid context to UST events

[bhufmann@gmail.com (Bernd Hufmann)]

Hi Mathieu

This is an important information. Is this documented?
The Eclipse implementation of the Trace Control doesn't support that.
It also uses "-t pid" for UST.
Could you please list all the differences for contexts name for UST?
Maybe I can squeeze in a fix
before the Eclipse Juno release.

Thanks
Bernd


On Fri, Jun 1, 2012 at 11:53 AM, Mathieu Desnoyers
<mathieu.desnoyers at efficios.com> wrote:
> * Francis Giraldeau (francis.giraldeau at gmail.com) wrote:
>> Hi,
>>
>> I tried to add pid context to UST events to distinguish events from
>> multiple processes. I do have this error:
>>
>> $ lttng create bidon
>> Session bidon created.
>> Traces will be written in /home/francis/lttng-traces/bidon-20120601-142031
>>
>> $ lttng enable-event -a -u
>> All UST events are enabled in channel channel0
>>
>> $ lttng add-context -u -t pid
>> Error: pid: UST invalid context
>> Warning: Some command(s) went wrong
>>
>> Am I doing something wrong?
>
> lttng add-context -u -t vpid
>
> should do it. (notice the "v").
>
> Eventually we should implement something that looks like a
>
> lttng list -u --context
>
> to list the per-domain contexts available.
>
> Thanks,
>
> Mathieu
>
>>
>> Thanks!
>>
>> Francis
>>
>
>
>
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>
>
> --
> Mathieu Desnoyers
> Operating System Efficiency R&D Consultant
> EfficiOS Inc.
> http://www.efficios.com
>
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