On Wed, Jul 02, 2014 at 03:00:52PM +0200, Stephane Eranian wrote: > He is probably talking about precise=2 for non HSW PMU. > But it is true, you need to look at x86_pmu_hw_config() > *br_type = PERF_SAMPLE_BRANCH_ANY;
Ah! indeed. And that is why I didn't find it, I was looking: "branch_sample_type[[:space:]]*=" and we've obscured it with that br_type thing.
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