Re: [PATCH] irq: Add node_affinity CPU masks for smarter irqbalancehints

From: Arjan van de Ven
Date: Tue Nov 24 2009 - 09:42:25 EST


Peter Zijlstra wrote:
Same for userspace.
the problem is that there is no way currently that the driver can communicate
"I allocated all my metadata on THIS numa node". irqbalance and sysadmins need
that to not make really stupid decisions.....

And what exactly is struct device::numa_node good for then?


and that is exported to userspace.. how?

... that has nothing to do with an irq, and also falls flat for a driver that
supports multiple irqs, and assigns one to each numa node.


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