Peter Zijlstra <[email protected]> writes: > On Mon, Oct 13, 2014 at 04:45:34PM +0300, Alexander Shishkin wrote: >> + /* >> + * Records that new data landed in the AUX buffer part. >> + * >> + * struct { >> + * struct perf_event_header header; >> + * >> + * u64 aux_offset; >> + * u64 aux_size; >> + * u64 flags; >> + * struct sample_id sample_id; >> + * }; >> + */ >> + PERF_RECORD_AUX = 11, > > Given the discussion with the ARM people the last time, do we want to > add the possibility of a variable data field in this event? Its easy to > add now, harder to do later (although not impossible).
Iirc, what they want is to save a once-per-session chunk of data, which would be better synthesized by perf record than sent from a pmu driver? We do something like that with PT right now, perf record looks at pmu's sysfs attributes and stores them in some synthesized record. > Also added Mathieu Poirier on CC, he asked to be included in your next > postings. Indeed, my apologies. Regards, -- Alex -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
