[ltt-dev] simple userspace tracing with LTTng 0.9.10
Mathieu Desnoyers
compudj at krystal.dyndns.org
Wed Jan 28 10:56:43 EST 2009
* Akyurek, Ali (EXT) (ali.akyurek.ext at siemens.com) wrote:
> Hi all,
>
> I've used simple userspace event tracing with the latest version by
> writing to the mnt/debugfs/ltt/write_event.
> But now i'm using an old LTTng (because i have to), 0.9.10.
>
> Is it possible to port this simple uspace tracing feature to the old
> lttng versions?
>
> Or it is not possible because of some architectural restrictions of
> kernel or LTTng?
> Thanks.
>
That should be easily doable, as long as you have a kernel with debugfs.
The main patch concerned is :
lttng-userspace-write-event.patch
Mathieu
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--
Mathieu Desnoyers
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