Re: [PATCH 1/5] perf, x86: Don't assume the alternative cycles encoding is architectural

Andi Kleen
2012-06-06T17:48:18Z

On Wed, Jun 06, 2012 at 07:10:45PM +0200, Peter Zijlstra wrote:
> On Wed, 2012-06-06 at 18:08 +0200, Andi Kleen wrote:
> > How about newer unknown Intel CPUs with arch_perfmon >= 3? Those would get
> > intel_pmu, correct? There's no guarantee that they support the trick.
>
> But they will have no PEBS constraints set, so effectively don't have
> PEBS.

Ok. I see you want to do it tricky instead of obvious.

-Andi

--
ak@linux.intel.com -- Speaking for myself only.