Messages in this thread | | | Date | Thu, 21 Jun 2012 10:31:47 +0200 | From | Alexander Gordeev <> | Subject | Re: [PATCH 1/2] x86, apic: optimize cpu traversal in __assign_irq_vector() using domain membership |
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On Tue, Jun 19, 2012 at 04:43:30PM -0700, Suresh Siddha wrote: > Use the irq_cfg's old_domain to track the visited domains and optimize > the cpu traversal while finding a free vector in the given cpumask. > > NOTE: We can also optimize the search by using for_each_cpu and skip the > current cpu, if it is not the first cpu in the mask returned by the > vector_allocation_domain(). But re-using the cfg->old_domain to track > the visited domains will be slightly faster.
Sorry for the dealy, Suresh.
You also need to kick out vector_allocation_domain's return value in all other apic drivers.
-- Regards, Alexander Gordeev agordeev@redhat.com
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