On Wed, Feb 27, 2008 at 04:02:10PM +0100, Ingo Molnar wrote: > > * Nick Piggin <npiggin@xxxxxxx> wrote: > > > > the two structures are quite similar in size and role - why not have > > > a type field and handle them largely together? I think we should try > > > to preserve a single queue and a single vector - that would remove a > > > number of ugly special-cases from the patch. > > > > A single queue will kill one of the big fundamental scalability > > improvements of the call_single. That's the problem. > > hm, indeed. Then how about the other way around: couldnt the normal > all-cpus SMP function call be implemented transparently via using > smp_call_single() calls? That's possible, but it is slower and less scalable on my 8-way, and I suspect it might become even slower than the generic code on larger systems. > The vector duplication is really ugly and feels > wrong. Why? - 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
