linux-kernel - Re: [PATCH 2/2] x2apic, cluster: use all the members of one cluster specified in the smp_affinity mask for the interrupt desintation

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Date:	Tue, 22 May 2012 09:04:29 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
Cc:	agordeev@...hat.com, yinghai@...nel.org,
	linux-kernel@...r.kernel.org, x86@...nel.org, gorcunov@...nvz.org
Subject: Re: [PATCH 2/2] x2apic, cluster: use all the members of one cluster
 specified in the smp_affinity mask for the interrupt desintation


* Suresh Siddha <suresh.b.siddha@...el.com> wrote:

> If the HW implements round-robin interrupt delivery, this 
> enables multiple cpu's (which are part of the user specified 
> interrupt smp_affinity mask and belong to the same x2apic 
> cluster) to service the interrupt.

Could/should we do something similar for regular APICs as well? 
They too support masks and LowestPrio delivery - and doing that 
will increase test coverage rather significantly.

Thanks,

	Ingo
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