Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [DRAFT PATCH 2/3] perf: Implement Nehalem uncore pmu | From | Lin Ming <> | Date | Fri, 05 Nov 2010 09:30:29 +0800 |
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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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