Why NVMe MSIx vectors affinity set across NUMA nodes?

Keith Busch keith.busch at intel.com
Mon Jan 22 10:05:16 PST 2018


On Mon, Jan 22, 2018 at 11:25:45PM +0530, Ganapatrao Kulkarni wrote:
> what was the need to use flag PCI_IRQ_AFFINITY in NVMe driver?
> i dont see this flag being used widely.

The flag is how we get the affinity set in the first place. Without it,
we'd have to rely on user space to set irq affinities.



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