On Fri, 15 Jul 2005, Andi Kleen wrote: > > That's like scratching your left ear with your right hand -- broadcasting > > that external timer interrupt in the first place is more straightforward. > > If you want to exclude CPUs from the list of receivers, just use the > > logical destination mode appropriately. > > The problem with that is that it would need regular synchronizations > of all CPUs to coordinate this. Not good for scalability and I > believe the fundamentally wrong way to do this.
What to you mean by "regular synchronizations of all CPUs?" And how is a broadcasted external timer interrupt different from a unicasted one redistributed further via an all-but-self IPI, except from removing an unnecessary burden from the CPU targeted by the unicast interrupt? Maciej - 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/
