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<div class="moz-cite-prefix">On 12/01/2013 11:12 AM, Stefan Sauer
wrote:<br>
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<blockquote cite="mid:529B0BA0.3010809@hora-obscura.de" type="cite">
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<div class="moz-cite-prefix">On 11/19/2013 04:42 PM, Olivier Crête
wrote:<br>
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<blockquote cite="mid:1384875767.2052.19.camel@TesterBox.lan"
type="cite">
<pre wrap="">Hi,
On Tue, 2013-11-19 at 09:22 +0000, Ikaheimonen, JP wrote:
</pre>
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<pre wrap="">I would be interested in seeing LTTng UST tracing in the GStreamer
code.
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<pre wrap="">Someone has already done it:
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="https://github.com/alexander-barabash/gstreamer-lttng/commits/0.10">https://github.com/alexander-barabash/gstreamer-lttng/commits/0.10</a>
That said, I think we'd like something more generic. Someone (I think it
was Stefan Sauer) recently proposed some cross-platform tracing
infrastructure (purely user-space and GStreamer specific). We discussed
having some way to re-use the same tracepoints with the different
frameworks (lttng, dtrace, custom, etc). But I can't references to that
discussion.
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The current state of what I am doing can be found here<br>
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href="http://cgit.freedesktop.org/%7Eensonic/gstreamer/?h=tracer">http://cgit.freedesktop.org/~ensonic/gstreamer/?h=tracer</a><br>
Feedback much welcome.<br>
<br>
I looked into babeltrace a bit (to output traces in the format
LTTng uses). So far they don't have a lot of tools processing the
traces :/ Right now I just log into the gst debug log, but thats
one of the next things on the todo list to change. So what do I
have right now:<br>
* tracepoints in the gst code base<br>
* 3 plugins that log trace data (log, stats, rusage)<br>
* one front-end to process trace data (gst-stats)<br>
<br>
Stefan<br>
<br>
<br>
</blockquote>
Just to maybe clear some confusion. If we can log/convert the
tracelog to the babeltrace format (or add a reader/write for our
format to babeltrace) we can have unified kernel/gst traces on
linux.<br>
<br>
Stefan<br>
<br>
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