On Thu, 12 Nov 2015, Yuanfang Chen wrote: > And the case can be reduced to > > perf stat -e \{r1000248,r148\} -- sleep 1 > > Performance counter stats for 'sleep 1': > > 7008 r1000248 > <not supported> r148
the kernel thinks that all events of type 0x48 (L1D_PEND_MISS) can only go into one of the counters, and thus you can't have multiple at the same time. If this is a bug you'll need to report it to the perf_event developers. I'd double check intel's documents to see what they actuall say about this class of events on your processor. Vince -- To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html