On 2014.10.21 at 15:31 -0700, Dehao Chen wrote:
> Looks like the perf data type is incompatible with quipper (perf data
> parser). Can you send me the perf.data file so that I can take a look.

PERF_RECORD_MMAP2 (aka 10) was added in Linux 3.12 (commit 13d7a2410f).
So your autofdo tool simply doesn't work on newer kernels.

-- 
Markus

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