> From my PoV that makes sense. One is CPU-affine, the other is not, and > the two cannot be scheduled in the same PMU transaction by the nature of > the hardware. Fundamentally, you cannot provide group semantics due to > this.
Actually you can. Just use it like a free running counter, and the different groups sample it. This will work from the different CPUs, as long as the event is the same everywhere. The implemention may not be quite right yet, but the basic concept should work, and is useful. -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/
