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/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |