[Question] perf header: Why the HEADER_EVENT_DESC is needed?

[Namhyung Kim]

Hi Stephane,

I wonder why we need to save the event descriptions in the feature area
of file header. Since the perf_event_attr, its ids and the event name
are already saved in the header, it seems a duplicate work to do that.
For printing the information, we might reuse those info or evlist
directly IMHO.

Am I missing something?

Thanks,
Namhyung
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