Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 26 May 2003 21:22:18 -0700 | From | William Lee Irwin III <> | Subject | Re: userspace irq balancer |
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On Mon, 26 May 2003, William Lee Irwin III wrote: >> It's done to acknowledge every interrupt. Also, there is additional >> cost associated with bouncing the lock's cacheline.
On Mon, May 26, 2003 at 10:45:20PM -0400, Zwane Mwaikambo wrote: > Bah, determining owning ioapic of an irq would get too ugly, you can have > the same irq connected to multiple ioapics so which to lock?
It tends to be all or one, detectable with IO_APIC_IRQ().
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