Re: [PATCH 00/11] perf tool: Add PERF_SAMPLE_READ sample readsupport

[Namhyung Kim]

2012-10-26 (ê), 10:14 -0600, David Ahern:
> On 10/26/12 9:39 AM, Namhyung Kim wrote:
> >> hm, thats the unique sample_type issue again ;) Once we set
> >> PERF_SAMPLE_READ for event or group, we need to set it for
> >> all other events in session, otherwise the report fails
> >
> > Sorry, I don't understand why we need to set it for all events.  Just
> > setting it for a group is not sufficient?  Please shed some light on
> > this.
> 
> perf does not support multiple sample_types -- all events in the session 
> need to use the same one.

Can I ask why? :)

Thanks,
Namhyung


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