Tony Jones <to...@suse.de> writes:

> I don't believe there is current support to do this,  but maybe I'm 
> overlooking something?

It may be possible in systemtap, but not in the builtin tracers yes.
>
> I'd like to be able to restrict the pmu (or filter results) to report 
> counting/sampling between two arbitrary code points,  such as a tracepoint or 
> kprobe.
>
> I believe it will require core perf changes and was curious on peoples 
> thoughts?

I'm not sure about messing with sampling (you can always filter that
later).

But able to collect PMU counter values are kprobes/tracepoints would be
fairly useful yes. It shouldn't be that difficult to do.

-Andi

-- 
a...@linux.intel.com -- Speaking for myself only
--
To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to