On Thu, Apr 30, 2015 at 05:37:29PM +0300, Adrian Hunter wrote: > Add support for the PERF_RECORD_AUX event type. > > PERF_RECORD_AUX is a new kernel event that records > when new data lands in the AUX buffer. Currently > it is assumed that AUX data follows the same ring > buffer conventions used by the perf events buffer, > and consequently the AUX event is not processed > during recording. > > It is processed during session processing so that > the information in the 'flags' member is made > available. > > The format of PERF_RECORD_AUX is outlined in the > linux/perf_events.h header file. The 'flags' are > also enumerated. > > Intel PT and Intel BTS use the flag named > PERF_AUX_FLAG_TRUNCATED to determine if data has > been lost because the buffer became full as > perf was not able to empty it fast enough. > > 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/
