Messages in this thread | | | Date | Wed, 7 May 2014 14:08:43 -0700 | From | Andi Kleen <> | Subject | Re: [PATCH v1 03/11] perf: Allow for multiple ring buffers per event |
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> Then, when data inside that aux data store changes they should inject an > PERF_RECORD_AUX to indicate this did happen, which ties it back into the > normal event flow.
What happens when the aux buffer wraps? How would the client know if the data belongs to this _AUX entry or some later one?
May need some extra sequence numbers in the mmap header and the aux entry to handle this.
-Andi
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