[ltt-dev] Tracing only userspace events

[Mathieu Desnoyers]

* Ali Günhan Akyürek (aliakyurek at gmail.com) wrote:
> Hi,
> 
> I just want to trace userspace events which I trigger by using the
> easy&dirty way (/mnt/debugfs/ltt_write_event). The UST is not possible for
> me to use at the moment because of ARM and an old GCC.
> Which markers do I need to connect, only userspace
> (/mnt/debugfs/ltt/markers/userspace/event)?

Yes.

> 
> By the way, to enable a single marker, what is the shell command
> exactly,like the following one?
> echo 1 > /mnt/debugfs/ltt/markers/userspace/event

Isn't there a "enable" file ? Then you should echo 1 to that "enable"
file.

Mathieu

> 
> Thanks in advance,
> Ali

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-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com