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[tracecompass-dev] XML analysis on both ust and kernel lttng traces
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Hello,
I'd like to combine kernel and ust events in the analysis - is it possible?
As an example, I'd like to recover the information which thread caused a
ust event (yes I know about lttng add-context --userspace --type=vtid,
but let's assume this is not available). I tried the following, which
didn't work for me (inside the same tmfxml element):
<stateProvider id="foo1" version="1">
<head>
<traceType id="org.eclipse.linuxtools.lttng2.kernel.tracetype" />
<label value="CPU TID map" />
</head>
<eventHandler eventName="sched_switch">
<stateChange>
<stateAttribute type="constant" value="CPUs" />
<stateAttribute type="eventField" value="cpu" />
<stateValue type="eventField" value="next_tid"/>
</stateChange>
</eventHandler>
</stateProvider>
<stateProvider id="foo2" version="1">
<head>
<traceType id="org.eclipse.linuxtools.lttng2.ust.tracetype" />
<label value="UST Analysis" />
</head>
<eventHandler eventName="ust_myprog:event1">
<stateChange>
<stateAttribute type="constant" value="Threads" />
<stateAttribute type="query">
<stateAttribute type="constant" value="CPUs" />
<stateAttribute type="eventField" value="cpu" />
</stateAttribute>
<stateValue type="int" value="..." />
</stateChange>
</eventHandler>
</stateProvider>
So I guess a stateProvider cannot access the state of another provider?
Can I maybe define a single stateProvider on an Experiment (where I have
both ust and kernel events combined)? Any other alternative?
Thanks for any info!
--
Zeno Endemann | zeno.endemann@xxxxxxxx | Software Engineer
KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
Tel: +49-30-521325470
KDAB - The Qt Experts
