[ltt-dev] simultaneous lttng kerner tracer and userspace tracer

Holger brunck holger.brunck at keymile.com
Thu Jun 10 07:53:45 EDT 2010


Hi,

On 06/10/2010 01:50 PM, MEKEZE KWATCHO, PATRICK (PATRICK) wrote:
> 
> Yes, I see well the kernel event and the testprogramm process when I analyze the trace1 get with $ lttctl -C -w /tmp/trace1 trace1
> 
> I also think that is it possible to start a userspace trace without using the usttrace tool.
> When I run $usttrace ./testprogramm and $ lttctl -C -w /tmp/trace1 trace1, I saw on the lttv-gui all the kernel event, but i didn't see my userspace event.
> Among the process, both usttrace and testprogramm are present.
> 

hm, is the ltt_userspace_event kernel module loaded?

Regards
Holger




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