Re: [RFC PATCH] perf_core: provide a kernel-internal interface toget to performance counters

[Arjan van de Ven]

On Sun, 27 Sep 2009 00:02:46 +0530
"K.Prasad" <prasad@xxxxxxxxxxxxxxxxxx> wrote:

> On Sat, Sep 26, 2009 at 12:03:28PM -0400, Frank Ch. Eigler wrote:

> > For what it's worth, this sort of thing also looks useful from
> > systemtap's point of view.
> 
> Wouldn't SystemTap be another user that desires support for
> multiple/all CPU perf-counters (apart from hw-breakpoints as a
> potential user)? As Arjan pointed out, perf's present design would
> support only a per-CPU or per-task counter; not both.

I'm sorry but I think I am missing your point.
"all cpu counters" would be one small helper wrapper away, a helper I'm
sure the SystemTap people are happy to submit as part of their patch
series when they submit SystemTap to the kernel.


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
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