On Thu, Apr 30, 2015 at 05:37:25PM +0300, Adrian Hunter wrote: > Add an index of AUX area tracing events within > a perf.data file. > > perf record uses a special user event > PERF_RECORD_FINISHED_ROUND to enable sorting of > events in chunks instead of having to sort all > events altogether. > > AUX area tracing events contain data that can > span back to the very beginning of the recording > period. i.e. they do not obey the rules of > PERF_RECORD_FINISHED_ROUND. > > By adding an index, AUX area tracing events > can be found in advance and the > PERF_RECORD_FINISHED_ROUND approach works as > usual. > > The index is recorded with the auxtrace feature > in the perf.data file. A session reads the index > but does not process it. An AUX area > decoder can queue all the AUX area data > in advance using auxtrace_queues__process_index() > or otherwise process the index in some custom > manner. > > Signed-off-by: Adrian Hunter <adrian.hun...@intel.com>
Acked-by: Jiri Olsa <jo...@kernel.org> thanks, jirka -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
