> The only part I don't quite follow here is this: > if (__test_and_set_bit(bit, (unsigned long *)&status)) > continue; > > Which seems to indicate the code is making sure each counter is > processed only once. But it can only be processed once, if you have > only one record. And if you have multiple, you want to be able to > handle the same counter multiple times, at least once perf PEBS > record. So I am a bit confused about this test.
Each PEBS record is only for a single counter overflow. So it always should only be a single perf event. -Andi -- 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/
