Re: [DRAFT PATCH 2/3] perf: Implement Nehalem uncore pmu

[Lin Ming]

On Fri, 2010-11-05 at 03:28 +0800, Peter Zijlstra wrote:
> On Tue, 2010-11-02 at 17:59 +0100, Stephane Eranian wrote:
> > I think using uncore PMU to measure per-thread is pretty much useless.
> > Maybe it should not even be allowed. There is no way you can correlate
> > the counts you're getting to a place in your program. Or put differently,
> > sampling in per-thread mode using uncore is useless. 
> 
> Right, per-task uncore event should not be allowed. I think it as simple
> as setting pmu::task_ctx_nr = perf_invalid_context.

Thanks for the comments from you and Stephane.
I'll update the patches.

Lin Ming


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