On Thu, Aug 19, 2021 at 06:22:07PM +0000, Song Liu wrote: > > And if we're going to be adding new pmu::methods then I figure one that > > does the whole sample state might be more useful. > > What do you mean by "whole sample state"? To integrate with exiting > perf_sample_data, like perf_output_sample()? Yeah, the PMI can/does set more than data->br_stack, but I'm now thinking that without an actual PMI, much of that will not be possible. br_stack is special here. Oh well, carry on I suppose.