Messages in this thread | | | Date | Fri, 26 Oct 2012 10:47:56 -0600 | From | David Ahern <> | Subject | Re: [PATCH 00/11] perf tool: Add PERF_SAMPLE_READ sample read support |
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On 10/26/12 10:25 AM, Namhyung Kim wrote: > 2012-10-26 (금), 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? :)
Of course: https://lkml.org/lkml/2011/8/15/6 https://lkml.org/lkml/2011/9/29/502
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