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    SubjectRe: [PATCH v6] x86/apic: limit irq affinity
    On Tue, 24 Nov 2009 14:55:15 +0100 (CET)
    > > Furthermore, the /sysfs topology information should include IRQ
    > > routing data in this case.
    >
    > Hmm, not sure about that. You'd need to scan through all the nodes to
    > find the set of CPUs where an irq can be routed to. I prefer to have
    > the information exposed by the irq enumeration (which is currently in
    > /proc/irq though).

    yes please.

    one device can have multiple irqs
    one irq can be servicing multiple devices

    expressing that in sysfs is a nightmare, while
    sticking it in /proc/irq *where the rest of the info is* is
    much nicer for apps like irqbalance


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    Arjan van de Ven Intel Open Source Technology Centre
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    visit http://www.lesswatts.org


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