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SubjectRe: [PATCH] irq: Add node_affinity CPU masks for smarter irqbalance hints
Peter Zijlstra wrote:
> On Tue, 2009-11-24 at 00:59 -0800, Peter P Waskiewicz Jr wrote:
>>> This all sounds backwards.. we've got a perfectly functional interface
>>> for affinity -- which people object to being used for some reason. So
>>> you add another interface on top, and that is ok?
>>>
>> But it's not functional. If I set the affinity in smp_affinity, then
>> irqbalance will override it 10 seconds later.
>
> And here I was thinking the kernel round-robins IRQ delivery on the mask
> specified there.

the kernel does no such thing, nor has code to do so.

> Are you talking about some daft userspace thing that
> writes into the irq smp_affinity to effect irq balancing?

thanks ;)





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