Messages in this thread | | | Subject | Re: [PATCH] irq: Add node_affinity CPU masks for smarter irqbalance hints | From | Peter P Waskiewicz Jr <> | Date | Tue, 24 Nov 2009 01:15:22 -0800 |
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On Tue, 2009-11-24 at 02:08 -0700, Peter Zijlstra wrote: > On Tue, 2009-11-24 at 00:59 -0800, Peter P Waskiewicz Jr wrote: > > > This all sounds backwards.. we've got a perfectly functional interface > > > for affinity -- which people object to being used for some reason. So > > > you add another interface on top, and that is ok? > > > > > > > But it's not functional. If I set the affinity in smp_affinity, then > > irqbalance will override it 10 seconds later. > > And here I was thinking the kernel round-robins IRQ delivery on the mask > specified there. Are you talking about some daft userspace thing that > writes into the irq smp_affinity to effect irq balancing? >
Yep. That's exactly what irqbalance does.
Cheers, -PJ
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