Re: [PATCH V5 11/16] perf, core: Pass perf_sample_data to perf_callchain()

[Peter Zijlstra]

On Tue, Oct 07, 2014 at 03:50:45PM +0000, Liang, Kan wrote:
> The data is originally from br_stack which is LBR format.

Right, its read from the LBR, therefore this must be.

> What the patch did is to convert it to CALLCHAIN output format in kernel.

I saw that.

> So you'd like to let the kernel pass the LBR output format data to user space
> perf tool,  and let perf tool to generate the callchain information?

Right, then we can also compare the two when they're both available.
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