Re: irq/0/smp_affinity =3 doesn't seem to work

From: Arjan van de Ven
Date: Tue Dec 05 2006 - 11:32:57 EST


On Tue, 2006-12-05 at 18:30 +0200, Raz Ben-Jehuda(caro) wrote:
> hello.
>
> I have a dual cpu AMD machine, I noticed that
> only one timer0 is working in /proc/interrutps.
> setting proc/irq/0/smp_affinity to 3 does make
> any difference.

if you set it to 3 then the chipset gets to decide where the irq goes.
Many decide to send it to the first cpu.

(not that it matters, the timer is so low frequency that it can go
anywhere without problems)

--
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/