On Wed, May 06, 2015 at 03:33:54PM -0400, Kan Liang wrote: > From: Kan Liang <kan.li...@intel.com> > > This patch modified the perf tool to handle the new RECORD type, > PERF_RECORD_LOST_SAMPLES. > The number of lost-sample events is stored in > .nr_events[PERF_EVENT_LOST_SAMPLES]. While the exact number of samples > which the kernel dropped is stored in total_lost_samples. > When the percentage of dropped samples is greater than 5%, a warning > will be sent out.
That's nice. Would be good to also print this in perf report --stdio output (without -D), like the samples are. Could you please do the same for the normal PERF_RECORD_LOST too? There we don't have a exact percentage, but at least could count the lost events too. This can be a separate patch of course, doesn't need to be tied to this patchkit. -Andi -- 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/
