Re: [PATCH 2/3] x86: x2apic/cluster: Make use of lowest prioritydelivery mode

[Cyrill Gorcunov]

On Mon, May 21, 2012 at 04:59:04PM +0200, Ingo Molnar wrote:
> 
> When a device is generating ten thousand irqs a second then 
> round-robining the IRQs is equivalent to switching a CPU every 
> 100 usecs.
> 

As far as I remember it's even more complex, with lowprio it
might be not complete fair round-robin, since if focused
processor found then it'll be assigned to handle incoming
irq again.

	Cyrill
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