> I assume from the tremendous number of for_each_possible_cpu()s that > CPU hotplug awareness won't be happening. > > Do we have a feeling for the amount of wastage here? If > > num_possible_cpus() - num_online_cpus() == N Haven't read the new patches, but per cpu data always was sized for all possible CPUs. > and N is large, what did it cost? > And what are reasonable values of N? N should normally not be large anymore, since num_possible_cpus() is sized based on firmware information now. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
