* Vince Weaver <[email protected]> wrote:
> On Wed, 17 Oct 2012, Ingo Molnar wrote:
>
> > How well tested is this on real hardware and how robust is the
> > hardware with this? Since it's a new PMU driver for v3.7, and if
> > these are reasonably well tested, then we could send these to
> > Linus via perf/urgent, so that they don't miss and have to wait
> > all the way to v3.8.
>
> You probably won't like this answer.
>
> The patches have been tested against the 2.6.34 kernel that
> Intel provides for KNC (found here
> http://software.intel.com/en-us/forums/topic/278102 )
>
> perf stat, perf record, and PAPI have all been tested and
> work.
>
> The patches I've sent are the 2.6.34 ones forward ported to
> the 3.7-rc1 kernel. I haven't been able to run a 3.7-rc
> kernel on the KNC board, because there are other patches to
> mainline needed to get KNC running and they'd all have to be
> forward-ported from 2.6.34.
>
> Since the knc pmu driver closely models the p6 one, it was
> straightforward to use it as a basis for the forward port.
> Everything _should_ work but I've only compile tested.
Ok. As long as it's all identical I'd still be inclined to
include it in v3.7, to reduce version skew. If the v3.7-rc1
kernel won't even boot it's not like we'll be able to further
regress it.
Thanks,
Ingo
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